Rosemary Andrianakos
Family Physician
4545 E 9th Ave Ste 300
Denver, CO 80220
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63 providers
Availability last updated 12/24/2025
Rosemary Andrianakos
Family Physician
4545 E 9th Ave Ste 300
Denver, CO 80220
Nicole Rowe, MD
Family Physician
28267 Highway 74
Evergreen, CO 80439
Leah Jones, NP
Family Physician
125 Rampart Way
Ste 300
Denver, CO 80230
Nicole Sheeder, FNP
Family Physician
8100 East Union Ave
#104
Denver, CO 80237
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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.
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Heather Whiting, PAC
Family Physician
5420 South Quebec Street
Suite 100
Greenwood Village, CO 80111
Medical School: Loyola University Stritch School of Medicine – Chicago, IL
Internal Medicine: Exempla St. Joseph Hospital – Denver, CO
Diagnostic Radiology: University of Colorado – Aurora, CO
Interventional Radiology: Medical College of Wisconsin – Milwaukee, WI
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:
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.
Dr. Anthony Brown, MD
Radiologist
8200 E Belleview Ave
Suite 600E, East Tower
Greenwood Village, CO 80111
Paramjit Parmar
Family Physician
10180 E Colfax Ave Ste 150
Aurora, CO 80010
Tamara Johnson, MD
Family Physician
6825 S. Galena St
Centennial, CO 80112
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.
Dr. Oswaldo Grenardo, MD, MBA, MS
Family Physician
385 Inverness Pkwy
Ste 130
Greenwood Village, CO 80112
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.
Colleen Wuellner, PA-C
Physician Assistant
12201 Pecos St.
Suite 500
Westminster, CO 80234
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.
Christian Fritch
Nurse Practitioner
12201 Pecos St.
Suite 500
Westminster, CO 80234
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.
"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
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Dr. Michael Cavanagh, MD
Family Physician
12201 Pecos St.
Suite 500
Westminster, CO 80234
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