Cardiologist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Chiropractor providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Dentist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Dermatologist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Family Physician providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
OB-GYN providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Ophthalmologist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Orthopedic Surgeon providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Pediatrician providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Physical Therapist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Podiatrist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Psychiatrist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Nicholas Werth, PA-C, is a physician assistant. He serves patients in Glendale and Phoenix, Arizona, at the HealthyU Clinics Phoenix – 31st Ave. clinic and the Glendale – West Olive Ave. clinic.
Nicholas was born and raised in Minnesota. He attended the University of Minnesota in Minneapolis as an undergraduate, receiving his bachelor’s degree in physiology in 2015. He then completed his physician assistant training at Touro University Nevada in Henderson in 2021. After graduating, Nicholas moved to Phoenix and joined HealthyU Clinics in early 2022.
Nicholas enjoys taking the time to provide education to his patients. He believes in employing shared decision-making with patients to ensure compliance with the treatment plan and to maintain patient autonomy. He is also passionate about mental health and enjoys working closely with the behavioral health management staff to help meet the needs of his patients.
When he’s not seeing patients, Nicholas can find him spending time with his girlfriend and their dog, playing golf, watching sports, working on his car, cooking, or trying new restaurants.
Dr. Ricardo La Grotta, MD is a primary care physician. He serves patients at HealthyU Clinics at our Chandler, Arizona clinic.
With over two decades of medical experience, Dr. La Grotta brings his passion and commitment to HealthyU Clinics. Motivated by the organization's dedication to prioritizing patients, he joins with enthusiasm and a belief that the clinic is truly upholding the oath in primary care by putting people first.
Having spent his formative years in diverse regions such as South America, the Caribbean, and the Pacific Northwest, Dr. La Grotta has cultivated a unique perspective. His focus on Primary Care and Urgent Care stems from a seamless blend of practical experience and scientific knowledge.
Although his family has been in the Pacific Northwest for four decades, Dr. La Grotta eagerly embraces Arizona as his new home. He looks forward to immersing himself in the beauty of the state, connecting with its vibrant communities, and indulging in the rich gastronomy that Arizona has to offer.
Lauren Havard, MD, is a family medicine and primary care physician. She serves patients at HealthyU Clinics at our Phoenix, Arizona, clinic.
Dr. Havard joined HealthyU Clinics in 2021. She previously worked as an outpatient family physician at two Banner Medical Group clinics in Phoenix, Arizona. She also worked at Banner Boswell Medical Center in Sun City, Arizona, mid-pandemic, as a hospitalist.
Dr. Havard completed her residency at Abrazo Central Family Medicine Residency Clinic in Phoenix, Arizona. She attended medical school at the American University of the Caribbean School of Medicine in St. Marteen.
During medical school, she spent her third year in Chichester, England (where she met her husband), and her fourth year in the United States.
Dr. Havard and her husband love spending time with their dog Lily, playing co-ed soccer, hiking, working out, listening to music, watching binge-worthy shows, and most importantly spending time with friends and family.
Social workers often say, “Meet people where they are.” You won’t meet one who champions this phrase more to co-create meaning than Emma Aguas. Hailing from Bakersfield, California, Emma moved to Arizona with her family to get her Masters of Social Work from Arizona State University. Since graduation, she’s worked as a client care coordinator, a case manager, and a clinician in a variety of settings providing high-quality services to drive positive change for her patients. In her free time, Emma enjoys playing with her pets and hanging out with friends and family.
Emma is bilingual in Spanish and English and able to provides services in-person or via telehealth.
Mohammad Nasser, MD, founder of Leading MDs in Goodyear, Tempe, Sun City, and Mesa, Arizona, is a board-certified internal medicine physician and population health specialist. Dr. Nasser has a special interest in complex patient care, gaining extensive experience as a hospitalist and internist providing care in hospitals, long-term acute care centers, and subacute rehabilitation.
With a well-known reputation as an exceptional health care innovator, Dr. Nasser creates and implements programs that improve the quality of care and diminish costs for hospitals and skilled nursing facilities.
Born and raised in Michigan, Dr. Nasser received his bachelor’s degree from Wayne State University in Detroit Michigan. After receiving his medical degree at the American University of the Caribbean School of Medicine in Sint Maarten, he completed his internship and internal medicine residency at Ascension Providence Hospital, Michigan State University College of Human Medicine in Grand Rapids, Michigan.
Dr. Nasser is known for numerous accomplishments in his field. He was the medical director at Arkos Health and managed more than 200,000 patients through his transitional care management program.
During his tenure at Arkos Health, Dr. Nasser developed an inpatient program that shortened hospital stays and mobilized patients to the next level of care. He also implemented a skilled nursing program that improved the post-discharge process.
As a respected author, Dr. Nasser published articles in medical journals as well as the well-known book, “Management of Chronic Kidney Disease.” He also served as a manuscript reviewer for medical journals, including the Journal of the American College of Cardiology.
Dr. Nasser is a proud member of the Phoenix community, where he welcomes patients and is highly regarded for his quality of care and leadership roles.
Board-certified internal medicine physician, William Nassour, MD, provides integrative health care at Leading MDs in Goodyear, Tempe, Sun City, and Mesa, Arizona. His expertise includes all aspects of adult health care, however, he has a special interest in cardiovascular disease, diabetes, geriatrics, and post-acute care.
Dr. Nassour is well-respected for go-to advice, with peers seeking his assistance and guidance in geriatrics and post-acute care, and patients depending on his understanding to provide honest evaluations and recommend individualized care.
Dr. Nassour received his medical degree from Tishreen University in Latakia, Syria, and completed his residency training in internal medicine at the New York University Langone Health in Brooklyn, New York.
With more than a decade of experience as a practicing physician in hospital medicine, including outpatient and subacute care, Dr. Nassour has developed extensive knowledge and skills that help him better understand each patient and create effective treatment plans.
He has successfully filled leadership roles as the medical director in different medical settings. He also remains active on various hospital committees.
Dr. Nassour welcomes new and current patients at Leading MDs, where he collaborates with each person to improve their health and well-being.
Hi! Megan Rigby here! I am a doctorate-prepared pediatric and family nurse practitioner specializing in primary care and family wellness. If you are looking for modern medicine with a mix of holistic care, then I am your provider. My focus is on preventative medicine in the most natural way possible. I do not believe in prescribing medications exclusively but rather finding ways to improve health and preventing further illness through complimentary medicine. I started REFRESH HEALTH because I want to change the way we look at medicine. I want your experience with me to be REFRESHingly different from the rest. I am providing a mix of in-clinic, Telehealth and mobile visits in order to make your medical experience convenient and accessible for your family. With 13 years of medical experience; 10 years of nutrition consulting/certification and endless hours of continuing education you can rest assure you will receive the best care possible.
“I cannot express how grateful I am to not dread our check up appointment with my now one year-old. It is so refreshing to have a judgment free space to take our family to for our care!”
Megan Rigby, DNP
Family Physician
24650 N Lake Pleasant Pkwy. Suite 101
Peoria, AZ 85383
I have lived in the east valley since the age of 2. I graduated from Mesa High School, Arizona State University, and then went on to medical school at the A.T. Still University of Health Sciences in Kirksville, Missouri. Following my doctorate, I finished a rotating internship at Phoenix General Hospital. I then began private practice in Scottsdale where I have been since.
I am currently Board Certified in Family Practice, Clinical Lipidology, and as a Certified Principal Investigator. I am a Fellow of the National Lipid Association, and the Association of Physicians in Clinical Research.
I have a true passion for medicine, with my private practice, teaching medical students, lecturing in the cardiovascular arena, and running a clinical research site. I also have more than 12 publications in the cardiovascular arena.
I have served as Chairman of Family Practice at Honor Health Osborn and Tempe St. Lukes.
I enjoy high intensity exercise, reading and spending time with my children.
