Find a Top Family Doctor Near Me in Lakewood, CO – Book an Appointment Instantly

Nationally Board Certified

Physician Assistant

Heather Whiting is a native of Colorado and has been fortunate to serve the community as a physician assistant and patient care advocate since 2003.

She began her pursuit of a career in medicine at the University of Northern Colorado where she earned a Bachelors and a Masters degree in Human Biology. Upon graduation, Heather worked at the University of Colorado Hospital as a Rehab Therapy Technician. She later graduated from the Physician Assistant program at Red Rocks Community College in Lakewood, Colorado with honors and earned a second Master’s degree, a Masters of Medical Science from Saint Francis University.

Heather is very passionate about medicine and believes in caring for the whole patient. She enjoys working side by side with patients striving to achieve optimal physical and emotional health. She is experienced in treating patients across a wide spectrum of disease states and ages, from adolescence to geriatrics. She has special interest in disease prevention and health promotion.

Heather loves spending time with her husband and two sons. They enjoy the beautiful Rocky Mountains, camping, hiking, biking, and snowboarding.

Education

Medical School: Loyola University Stritch School of Medicine – Chicago, IL

Internship

Internal Medicine: Exempla St. Joseph Hospital – Denver, CO

Residency

Diagnostic Radiology: University of Colorado – Aurora, CO

Fellowship

Interventional Radiology: Medical College of Wisconsin – Milwaukee, WI

Board Certification

American Board of Radiology 2016

Tony Brown, MD, is the Medical Director and a board-certified vascular and interventional radiologist specializing in pelvic stabilization and kyphoplasty at RIA Endovascular. Dr. Brown sees patients at the practice's location in Greenwood Village, Colorado.

He pursued medical school at Loyola University Stritch School of Medicine in Chicago, Illinois, followed by an internship in Internal Medicine at Exempla St. Joseph Hospital in Denver, Colorado, and a residency in Diagnostic Radiology at the University of Colorado in Aurora.

Dr. Brown completed his fellowship in Interventional Radiology at the Medical College of Wisconsin in Milwaukee. 

He has contributed to a number of publications and presentations, such as:

• Gipson MG, Smith, MT, Durham JD, Brown A, Johnson T, Ray CE Jr, Gupta RK, Kondo KL, Rochon PJ, Ryu RK. Intravascular US-Guided Portal Vein Access: Improved Procedural Metrics during TIPS Creation. Journal of Vascular and Interventional Radiology, 2016 Aug; 27(8):1140-7. PMID: 26852944
• Charles E Ray, Anthony C Brown, Tyler J Green, Helena Winston, Sara M Kreidler, Deborah H Glueck, Paul J Rochon. Survival outcomes in patients with advanced hepatocellular carcinoma treated with drug-eluting bead chemoembolization. American Journal of Roentgenology. 2015; 204: 440-447. PMID: 25615768
• Brown A, Malden E, Kugelmas M, Kortz E. Diagnosis of pancreatic duct-portal vein fistula; a case report and review of the literature. Journal of Radiology Case Reports. 2014 March; 8(3):31-38. PMID: 24967026

In 2016, Dr. Brown obtained board certification from the American Board of Radiology (ABR).

He is committed to caring for patients at RIA Endovascular and truly provides exceptional care.

As a first-generation American raised in Colorado by immigrant parents from Guyana and Poland—both of whom proudly served in the U.S. military—Oswaldo Grenardo, MD, MBA, MSHA, FAAFP, grew up with a deep respect for accountability, service, and cultural diversity. These early influences, coupled with a desire to improve the healthcare experience for underserved individuals, led him to start his own private practice, OG Health, in Greenwood Village, Colorado.

With over 30 years of experience in family medicine and healthcare leadership, Dr. Grenardo brings a unique blend of compassionate, personalized care and executive-level insight to his patients at OG Health, the practice he founded to reflect his vision of whole-person care. He believes great care begins with a genuine relationship—where patients feel seen, heard, and truly known by their physician.

Dr. Grenardo has held numerous high-impact roles throughout his career, including Chief Medical Officer and Chief Diversity and Inclusion Officer at Centura Health/CommonSpirit Health, Medical Director of its Clinically Integrated Network, and Dean of Admissions at the University of Colorado School of Medicine. His leadership has touched every level of the healthcare system, from clinical integration to medical education and health equity.

A Stanford University graduate with a degree in Human Biology, Dr. Grenardo later earned dual master’s degrees in Business Administration and Health Administration before completing his MD at the University of Colorado School of Medicine. He completed his Family Medicine residency at Rose Medical Center in Denver.

Outside of medicine, Dr. Grenardo is a proud father, sports enthusiast, former Stanford football player, bonsai hobbyist, and certified barbecue judge. He remains active in the community, serving on multiple nonprofit boards, including the American Heart Association Colorado, the Colorado Health Foundation, and the Boys & Girls Clubs of Metro Denver—working to improve health and opportunity across Colorado.

Colleen has been practicing Family Medicine in Colorado since 2012. Originally from Illinois, she earned her bachelor’s degree at Marquette University, attended graduate school at St. Louis University, and completed her Physician Assistant studies at Jefferson College of Health Sciences in 2008. Colleen is committed to providing care that is compassionate and non-judgmental. She strives to create an environment where patients feel comfortable and understood. Colleen believes in taking time to educate patients so they fully understand the “why” and “how” behind their health and treatment, empowering them to make informed decisions and take an active role in their well-being.

Christian is a board-certified family nurse practitioner, who enjoys caring for individuals of all ages. She has a strong background in pediatrics, having worked as a pediatric nurse for 6 years prior to becoming a nurse practitioner. She was born and raised in Denver, and attended the University of Northern Colorado, where she completed her master’s degree in nursing in 2018. Prior to joining Westmed, she spent 6 years in central California, providing care to individuals at a private primary care clinic and student wellness center for pre-school to 12th grade students. She speaks Spanish fluently.

Christian prides herself in providing high-quality, patient-centered care, and strives to connect with her patients, to achieve the best outcome for the patient.

In her free time, she enjoys spending time with her friends and family, traveling, watching movies, and baking.

Michael K. Cavanagh, MD joined Westmed Family HealthCare. He has a special interest in Sports Medicine and Wilderness Medicine. He is Board Certified. During his leisure time, Dr. Cavanagh enjoys running, cycling and snowboarding. Originally from Connecticut, he is married with two children.

Philosophy: 

"My primary goal as a physician is excellence in the care I provide. My philosophy is to treat my patients as a whole person, not just treating an illness.”

Specialty: Family Practice

In practice at WMFH: 1996

Education

Undergraduate: Drake University 1983 -1986

Medical School

University of Iowa 1990 -1993

Residency: University of Connecticut 1993 -1996

Board Certifications/Associations

American Board of Family Physicians, Board Certified 1993

American Academy of Family Physicians

Schedule An Appt With This Provider

Sarah Sato, NP, is a board-certified nurse practitioner and one of the co-founders of The Alpine Center for Diabetes, Endocrinology, and Metabolism, PC located in Superior, Colorado. Sarah completed a Bachelor of Arts in Communications at The George Washington University in Washington, DC. She went on to earn both her Bachelor of Science and Masters of Science in Nursing at Columbia University in New York City, where she was part of the Sigma Theta Tau Honors Society. As part of her training, Sarah worked as a registered nurse at the Manhattan Children's Center and student nurse practitioner at the Neighborhood Family and Health Center in the Bronx.

After completing her training, Sarah worked as a nurse practitioner at several facilities in Colorado, before starting The Alpine Center for Diabetes, Endocrinology, and Metabolism, PC in 2019. Sarah is board certified and holds both a Registered Nurse and Nurse Practitioner license in the state of Colorado and is a Certified Diabetes Educator. She has independent prescriptive authority and holds a Drug Enforcement Administration certificate, which allows her to prescribe medication for patient treatment.

Dr. Claire Hardin, DNP, FNP-C, is a highly skilled family nurse practitioner at P2 Wellness in locations in both Parker and Lakewood, Colorado. 

She began her impressive career in emergency medicine at Yale New Haven Health in Connecticut, where she honed her skills as a bedside nurse and critical care specialist for eight years. She earned her nursing degree from Yale University followed by a Doctorate in Nursing Practice (DNP) from Quinnipiac University in Connecticut. 

Claire’s dedication to patient care led her to pursue a fellowship in emergency medicine and child abuse, where she received the prestigious Trewin Award for leadership and became a health policy fellow advocating for patient rights.

With a passion for global health, Claire has worked and taught healthcare in diverse settings across Nepal, Haiti, Uganda, and Nicaragua. In 2018, she relocated to Colorado and joined Children’s Hospital Colorado in the emergency department, followed by roles in an IV infusion center and a family health clinic. Claire is now thrilled to bring her expertise in continuity of care to P2 Wellness, where she emphasizes the importance of holistic patient care and precision based medicine.

With over 15 years in healthcare, Claire deeply values the patient-provider relationship. She credits both her parents, who are dedicated healthcare professionals, for instilling in her the importance of compassionate patient care.

Outside of her professional life, Claire enjoys hiking with her three dogs, practicing yoga, and cooking with her husband. She remains close to her East Coast family, who continue to inspire her in her work. 

Jodie Gahn-Stahley began her health-care career in 1990 as a US Fleet Marine Force Corpsman where she treated Navy and Marine Corps personnel and their families at Camp Pendleton, CA and Naval Medical Center San Diego, CA. After four years, she separated from active duty and continued her military career in the US Naval Reserves supporting Fleet Hospital 23, Field Medical Unit as a combat medical technician. 

Jodie grew up in southeastern Wisconsin and attended the University of Wisconsin- Madison for undergraduate training in 1995. While pursuing her degree, she worked as a multi-specialty medical assistant at Dean Medical Center in Madison, Wisconsin. Her physician assistant training was completed at College of Osteopathic Medicine - Des Moines University. Since then, she has been dedicated to providing quality and cost- effective health care in the South Denver Metro area. Her outpatient medical practice spans the pediatric through geriatric 

population with a focus on preventative medicine, disease management and urgent care. 

In her personal time, she and her husband, John, enjoy a multitude of outdoor adventures whether hiking in the forest or boating and fishing in Colorado's mountain lakes and streams with their two dogs Max and Elke. An aspiring home chef and foodie, Jodie is known to whip up a tasty meal for her family and friends.