Find a Top Internist Near Me in Oxnard, CA – Book an Appointment Instantly

Dr. Perez Andreu completed her medical school at the University Miguel Hernandez of Elche in Spain in 2003. She completed her residency in Hematology at Morales Meseguer Hospital in Murcia, Spain in 2008. While working as a hematologist, she graduated cum laude in 2011 with her Ph.D. in Pharmacogenetics from the University of Murcia, Spain, and the Wellcome Sanger Institute in Cambridge, UK. She then completed her postdoctoral fellowship at the Pharmaceutical Sciences department of St. Jude Children's Research Hospital in Memphis, TN in 2015. Afterward, she decided to practice medicine in the US and completed her residency in Internal Medicine at MountainView Hospital Sunrise Health GME in Las Vegas, NV in 2019. Dr. Perez Andreu speaks English and Spanish.

Since opening the doors in 2003, Dr. Bhuiya has established a thriving multi-specialty medical office in the heart of the Conejo Valley. Dr. Bhuiya has over two decades of experience and an extremely refined technique. His high level of skill and artistic reputation has lead to the opening of an office in San Fernando. Dr. Bhuiya graduated University of Nevada School of Medicine and then went to USC for his internship. Afterward, he finished his residency in New York at Columbia University. Dr. Bhuiya specializes in cosmetic procedures, bio-identical hormone replacement therapy, internal medicine and addiction medicine (drug and alcohol detox). His mission is to help his patients achieve their medical goals through a multi-specialty approach. We look forward to meeting you!

Sagi Jacob Cohen, MD, is a board-certified internal medicine physician providing personalized concierge healthcare at Calabasas Medicine Group in Calabasas, California. He specializes in adult outpatient and hospital medicine. 

Dr. Cohen completed his residency in internal medicine at UCSF Fresno, one of California's largest emergency rooms and intensive care units (ICU), acquiring experience in a diverse patient population and medical conditions. Additionally, he has hospitalist and ICU experience at Providence Cedars-Sinai Tarzana Medical Center in Los Angeles, California, where he continues to maintain his privileges. 

Dr. Cohen’s unique and warm approach to medicine goes above and beyond traditional medicine as his focus is on timely, compassionate, preventative care, and a patient centered approach. With a gentle bedside manner, Dr. Cohen and his team are dedicated to the health and well-being of each patient. He believes that patients deserve longer visits with minimal waiting time and expedited access to top specialists. Dr. Cohen limits the size of his practice to ensure patients receive the highest level of care with non-rushed visits and a comprehensive understanding of their health needs.  

Dr. Cohen offers management of acute and chronic conditions, in-office diagnostic testing, comprehensive physical exams, and personalized treatment plans utilizing the most innovative and advanced technologies. The Calabasas Medicine Group is a fully equipped practice with a variety of the latest diagnostic modalities and treatments for convenience and faster results.

It's time to allow yourself to settle into a new paradigm of health. One without long office wait times or feeling rushed at appointments.

At Calabasas Medicine, Danny Rosen, MD - being Board Certified Internal Medicine, offers Personalized Concierge Medicine to make your experience as enjoyable, educational, and convenient as possible - with a level of personalized care above and beyond traditional medical practices. Dr. Rosen specializes in Adult Outpatient and Hospital Medicine, managing both common and complex illnesses of adolescents, young adults and the elderly. Dr. Rosen’s philosophy is to merge the best of “Old School Medicine” with modern technology. He takes on lighter patient loads to ensure you receive top-quality care, and even offers house calls for added convenience.

As your Concierge physician, he will be organizing your care, focusing on prevention and lifestyle treatments, as well as needed medications.

He offers acute and chronic disease management, diagnostic testing, comprehensive physical exams, and personalized treatments that get patients on the road to recovery quickly. He utilizes the most innovative, advanced technologies, recommending the least invasive options first. 

Christopher Ho, MD, is a physician at Wellness Oncology and Hematology. Dr. Ho treats cancer and hematology patients in West Hills and Tarzana, California, as part of the Wellness Oncology and Hematology medical team.

Dr. Ho was born and raised in Philadelphia. He earned his undergraduate degree from Johns Hopkins University in Baltimore, where he lettered in lacrosse, then returned to Philadelphia to earn his Doctor of Medicine from Temple University. While in medical school, he clerked at the Fox Chase Cancer Center in Philadelphia, an experience that ignited his interest in medical oncology research.

After a residency in internal medicine at the University of California, Davis, Dr. Ho received subspecialty training in medical oncology and hematology at the University of Southern California’s Keck School of Medicine in Los Angeles. He served as chief fellow of medical oncology.

Dr. Ho is certified by the American Board of Internal Medicine, the American Board of Medical Oncology, and the American Board of Hematology. To keep up with the latest advancements in his specialties, he retains active membership in the Medical Oncology Association of Southern California, the American Society of Hematology, and the American Society of Clinical Oncology.

Dr. Ho has dedicated himself to the belief that the health of every one of his patients depends on a comprehensive, personalized approach to care that includes a combination of the latest treatment techniques and the personal touch of a physician who truly cares.

Because of his wide range of interests, including music, nutrition, calisthenics, Philadelphia Eagles football, and gourmet food, Dr. Ho is able to connect easily with his patients and share insightful conversations. He is a devoted family man, spending as much time as possible with his wife and two young sons. He speaks English, Spanish, and Chinese.

Omid S. Shaye, MD, is an oncologist and hematologist at Wellness Oncology and Hematology. Dr. Shaye treats patients at the practice’s medical offices in West Hills and Tarzana, California.

Dr. Shaye is a native of the San Fernando Valley. He earned his undergraduate degree from the University of Southern California in Los Angeles, then remained at USC to complete his Doctor of Medicine.

During his residency and fellowship in hematology and oncology at the USC Norris Cancer Center, Dr. Shaye was chosen as chief fellow of medical oncology. He then established Wellness Oncology and Hematology in order to share the newest, most cutting-edge therapeutic options with cancer and hematology patients in the San Fernando Valley.

Dr. Shaye sees his role as the “quarterback of a patient’s care,” offering individualized treatments that can include options like targeted therapies, clinical trials, immunotherapies, chemotherapy, radiation, and surgery. He spends time getting to know his patients and their families as he helps them along the road to wellness.

Dr. Shaye is certified by the American Board of Internal Medicine and the American Board of Medical Oncology. He is a member of the Medical Oncology Association of Southern California, the Community Oncology Alliance, and the American Society of Clinical Oncology. He speaks English, Spanish, and Farsi.

Ashkan Lashkari, MD, is a physician at Wellness Oncology and Hematology. Dr. Lashkari offers personalized oncology and hematology care to patients at the practice’s offices in West Hills and Tarzana, California.

Born and raised in Santa Monica, California, by parents who were both dedicated educators, Dr. Lashkari knew at a young age that he wanted a career that would allow him to help others. He stayed close to home for his education, earning bachelor’s degrees in art history and molecular biology from the University of California at Los Angeles, and then remained at UCLA to complete his Doctor of Medicine degree.

During medical school, Dr. Lashkari developed a keen interest in cancer care, inspired by the discoveries of new treatments and the possibility of helping people with challenging conditions.

After an internal medicine residency at UCLA, Dr. Lashkari completed a fellowship in hematology and medical oncology at the City of Hope Comprehensive Cancer Center in Duarte, California. He focused his time on learning how to design clinical trials and researching familial cancer syndromes. His vast experience allows him to provide high-quality, compassionate care to his patients.

Dr. Lashkari is certified by the American Board of Internal Medicine, the American Board of Medical Oncology, and the American Board of Hematology. Because of his ongoing dedication to knowing about the latest oncology treatments and advances, he retains active membership in the Medical Oncology Association of Southern California, the American Society of Hematology, and the American Society of Clinical Oncology. He is also an assistant clinical faculty member at Olive View–UCLA Medical Center in Sylmar, California.

Dr. Lashkari enjoying spending time with his wife and two daughters, traveling, running, visiting museums, playing tennis, and cooking. He speaks English and Farsi.

Board-Certified Internal Medicine Physician
Founder & CEO – Midwest Wellness & Wound Care

Dr. Kinya Kamau, MD, is a Board-Certified Internal Medicine physician and the Founder and Chief Executive Officer of Midwest Wellness & Wound Care, a physician-directed multi-state medical organization specializing in mobile wound care, chronic disease management, and telemedicine services.

With more than 20 years of clinical experience, Dr. Kamau has dedicated her career to improving outcomes for medically complex patients through evidence-based care delivered directly at the bedside. Her work focuses on patients living with chronic wounds, diabetes, vascular disease, mobility limitations, and other conditions that interfere with healing.

Dr. Kamau leads a physician-directed wound care program that delivers advanced bedside wound management in skilled nursing facilities, assisted living communities, rehabilitation centers, and private residences across multiple states. Her model integrates Internal Medicine expertise, regulatory compliance, and structured clinical workflows to improve healing outcomes while supporting healthcare facilities with Medicare-aligned documentation.

Her mission is simple but powerful: provide compassionate, evidence-driven care that restores health, mobility, and dignity for patients living with chronic wounds.

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Professional Credentials

Dr. Kamau brings more than two decades of medical experience in Internal Medicine and complex chronic disease management. Her clinical background includes extensive experience caring for medically fragile adults in hospital, outpatient, and post-acute care settings.

She has dedicated much of her career to treating patients with:

• chronic wounds

• diabetes

• vascular disease

• renal dysfunction

• mobility limitations

These conditions frequently impair wound healing and require a comprehensive medical approach.

Dr. Kamau earned her Doctor of Medicine degree from the University of Nairobi, where she developed a strong academic foundation in internal medicine, complex disease management, and patient-centered clinical care.

She later completed her Internal Medicine residency at the University of Oklahoma, where she refined her expertise in diagnosing and managing complex medical conditions affecting adult patients.

Following residency, Dr. Kamau completed advanced fellowship training in nephrology, expanding her expertise in:

• kidney disease

• hypertension

• electrolyte disorders

• metabolic conditions

• systemic illnesses that influence wound healing

Dr. Kamau currently maintains active medical licenses in multiple U.S. states, allowing her to oversee physician-directed wound care services across diverse healthcare environments including:

• skilled nursing facilities

• assisted living communities

• rehabilitation centers

• private residences

Through Midwest Wellness & Wound Care, she leads a multi-state physician wound care program designed to deliver advanced bedside wound treatment while maintaining strict alignment with Medicare documentation standards and regulatory compliance requirements.

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Quick Credentials Summary

Board Certification
Internal Medicine

Medical School
University of Nairobi – Doctor of Medicine

Residency Training
Internal Medicine – University of Oklahoma

Fellowship Training
Nephrology- University of Oklahoma

Clinical Experience
20+ years in Internal Medicine and complex chronic disease management

Clinical Focus

• Mobile wound care

• Chronic wound management

• Diabetic wound care

• Pressure injury management

• Post-acute care medicine

Practice Model

Physician-directed mobile wound care and telemedicine services

Practice Leadership

Founder & CEO – Midwest Wellness & Wound Care

Practice Settings

• Skilled nursing facilities

• Assisted living communities

• Rehabilitation centers

• Private residences

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Medical Education and Training

Dr. Kamau earned her Doctor of Medicine degree from the University of Nairobi, where she developed a strong foundation in internal medicine, complex disease management, and patient-centered clinical care.

She later completed her Internal Medicine residency training at the University of Oklahoma, where she further refined her expertise in diagnosing and managing complex medical conditions affecting adult patients.

Internal Medicine training provides a comprehensive understanding of the interconnected systems that influence healing. Conditions such as:

• diabetes

• cardiovascular disease

• kidney dysfunction

• malnutrition

• vascular compromise

frequently contribute to delayed wound healing.

Dr. Kamau’s training enables her to evaluate wounds within the full medical context of the patient rather than focusing solely on the skin surface. This systemic perspective forms the foundation of her approach to chronic wound management.

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Board-Certified Internal Medicine Expertise

As a Board-Certified Internal Medicine physician, Dr. Kamau approaches wound care through the lens of whole-patient medicine.

Chronic wounds rarely exist in isolation. They often develop because of underlying physiologic dysfunction that impairs tissue repair.

Common systemic contributors include:

• diabetes and poor glycemic control

• peripheral vascular disease

• venous insufficiency

• cardiac disease

• renal impairment

• malnutrition

• neuropathy

• immobility

• medication side effects

• chronic inflammation

By addressing these root contributors alongside local wound treatment, Dr. Kamau’s approach improves healing potential and reduces the risk of complications such as infection, hospitalization, or limb loss.

This integrated medical strategy is a key differentiator between physician-directed wound care and fragmented treatment models that rely solely on topical wound management.

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Founder of Midwest Wellness & Wound Care

Dr. Kamau founded Midwest Wellness & Wound Care to address a critical gap in post-acute medicine.

Many patients with chronic wounds live in environments where transportation to specialty wound clinics is difficult or unsafe. Skilled nursing residents, assisted living residents, and homebound individuals often experience delays in wound evaluation simply because they cannot easily travel to outpatient facilities.

The mobile wound care model solves this problem by bringing advanced wound care directly to the patient.

Under Dr. Kamau’s leadership, Midwest Wellness & Wound Care provides physician-directed bedside wound care services that allow patients to receive specialized treatment in the environment where they live.

This model improves:

• access to care

• early wound detection

• treatment timeliness

• interdisciplinary communication

• patient comfort and safety

It also allows physicians to observe real-world factors affecting wound healing, including mobility limitations, pressure exposure, nutritional status, and environmental risks.

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Multi-State Medical Practice

Dr. Kamau currently holds active medical licenses in numerous states across the United States, allowing her organization to expand access to physician-directed wound care services across diverse regions.

States where Dr. Kamau is licensed in over 40 states. 

Operating across multiple states requires a deep understanding of regulatory frameworks, payer policies, and state medical board requirements.

Dr. Kamau’s leadership includes oversight of:

• multi-state physician licensing

• Medicare credentialing

• payer enrollment

• corporate practice of medicine compliance

• telemedicine regulations

• Medicare Administrative Contractor policy alignment

This regulatory fluency allows Midwest Wellness & Wound Care to expand safely while maintaining strict compliance with healthcare laws and reimbursement guidelines.

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Mobile Wound Care: Bringing Advanced Treatment to the Bedside

Mobile wound care represents a major advancement in how chronic wounds are treated.

Traditional wound care models rely heavily on outpatient clinics or hospital-based services, which can create barriers for medically fragile patients.

Dr. Kamau’s physician-directed mobile wound care model places advanced wound care directly at the bedside.

Patients may receive care in:

• skilled nursing facilities

• assisted living communities

• rehabilitation centers

• long-term care facilities

• private residences

By eliminating transportation barriers, patients receive faster evaluations and more consistent follow-up.

Early intervention is one of the most important factors influencing wound healing outcomes.

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Chronic Wounds Treated

Dr. Kamau’s clinical program manages a wide range of wound conditions commonly seen in post-acute medicine.

These include:

Diabetic Foot Ulcers
Neuropathy, vascular compromise, and metabolic dysfunction contribute to tissue breakdown.

Pressure Injuries
Prolonged pressure restricts blood flow and damages tissue.

Venous Leg Ulcers
Venous insufficiency and edema lead to chronic lower extremity wounds.

Arterial Ulcers
Poor arterial circulation limits oxygen delivery to tissues.

Post-Surgical Wounds
Incisions may fail to heal due to infection or systemic illness.

Traumatic Wounds
Skin tears and injuries are common in elderly populations.

Chronic Non-Healing Wounds
Persistent wounds require a comprehensive medical approach.

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Structured Wound Evaluation

Every wound evaluation follows a standardized clinical protocol that includes:

• precise wound location documentation

• wound length, width, and depth measurement

• tissue type identification

• exudate evaluation

• periwound assessment

• infection surveillance

• perfusion evaluation

• pressure offloading strategies

This structured methodology supports accurate monitoring of wound progression and Medicare-compliant documentation.

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Advanced Wound Treatment Modalities

Treatment plans are tailored to each patient and may include:

• conservative sharp debridement

• antimicrobial dressings

• moisture-balance therapy

• collagen-based wound matrices

• compression therapy

• edema management

• negative pressure wound therapy

• cellular and tissue-based products when appropriate

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Medicare-Aligned Documentation

Providing wound care in long-term care environments requires careful adherence to Medicare documentation standards.

Dr. Kamau’s program emphasizes:

• medical necessity documentation

• CPT coding accuracy

• ICD-10 diagnosis specificity

• Local Coverage Determination adherence

• wound progression documentation

• treatment response monitoring

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Telemedicine Services

In addition to mobile wound care, Dr. Kamau oversees telemedicine services that expand access to medical care.

Services may include:

• primary care consultations

• chronic disease follow-up

• medication management

• behavioral health support

• preventive care evaluations

Telehealth allows patients to receive ongoing medical support between in-person visits while maintaining continuity of care.

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Commitment to Patient-Centered Care

At the center of Dr. Kamau’s work is a commitment to improving the lives of patients living with chronic wounds and complex medical conditions.

Frequently Asked Questions About Wound Care Physicians What does a wound care physician do?

A wound care physician specializes in diagnosing and treating chronic wounds such as diabetic foot ulcers, pressure injuries, venous leg ulcers, arterial ulcers, and non-healing surgical wounds. They provide advanced wound treatments, debridement procedures, and medical oversight to support healing.

When should someone see a wound care physician?

Patients should see a wound care physician when a wound does not improve after several weeks of standard treatment, or when conditions such as diabetes, vascular disease, or immobility increase the risk of delayed healing.

Can wound care physicians treat patients in nursing facilities?

Yes. Many wound care physicians provide bedside services in skilled nursing facilities, assisted living communities, rehabilitation centers, and private homes to ensure patients receive timely evaluation and treatment.

Dr. Keyvan Shirazi, MD, is a highly experienced physician who has been providing comprehensive primary care and internal medicine services to patients throughout Southern California for more than 24 years. With a special focus on preventive medicine, chronic disease management, geriatrics, and complex medical care, Dr. Shirazi is dedicated to helping patients achieve optimal health and maintain their quality of life at every stage of adulthood.

After completing his medical training at the Medical College of Pennsylvania and Hahnemann University Hospital in Philadelphia, Dr. Shirazi returned to his hometown in Southern California to begin his medical career. Since 2002, he has been an integral part of the San Fernando Valley medical community, caring for generations of patients and their families.

Dr. Shirazi maintains hospital privileges at Providence Cedars-Sinai Tarzana Medical Center, where he serves as Medical Director and plays an active leadership role in quality improvement initiatives, utilization review, and patient care management. As a Physician Advisor, he works closely with case management teams to enhance patient outcomes and ensure the highest standards of care.

Recognizing the growing healthcare needs of seniors and medically complex patients, Dr. Shirazi has devoted much of his career to the care of frail and elderly individuals. He serves as Medical Director at Los Angeles Jewish Health, where he has provided compassionate care for more than two decades. He also holds privileges at the Joyce Eisenberg Keefer Medical Center and works closely with skilled nursing facilities throughout the region.

A Certified Medical Director, Dr. Shirazi has extensive experience in geriatric medicine, chronic disease management, post-acute care, and end-of-life care. His unique ability to coordinate care across the office, hospital, rehabilitation, and skilled nursing settings allows his patients to benefit from continuity of care that is increasingly rare in modern medicine.

Patients appreciate Dr. Shirazi's personalized approach, accessibility, and commitment to treating every individual with dignity, respect, and compassion. He believes exceptional healthcare begins with listening and takes pride in developing long-term relationships with patients and their families. Whether caring for young adults, working professionals, seniors, or multiple generations within the same family, Dr. Shirazi strives to provide the same level of care he would want for his own loved ones.

In addition to his clinical and leadership responsibilities, Dr. Shirazi enjoys mentoring healthcare professionals and collaborating with colleagues to advance quality patient care. Outside of medicine, he enjoys spending time with his wife and three children, traveling, exercising, and following his favorite sports teams.