Samuel Palmer, ARNP
Family Physician
1756 38th St.
Boulder, CO 80301
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Availability last updated 07/20/2025
Samuel Palmer, ARNP
Family Physician
1756 38th St.
Boulder, CO 80301
J. Abram McBride, MD, is a board-certified urologist and men’s health specialist with fellowship training in microsurgery, male reproductive medicine, and infertility. He currently provides comprehensive men’s care at his private practice in Colorado Springs, Colorado. Dr. McBride is a proud native of Virginia who served in the Virginia Army National Guard, including overseas for Operation Enduring and Iraqi Freedom.
Between his army tours, Dr. McBride graduated with a bachelor’s degree from the University of Virginia in Charlottesville and then received his medical degree from Eastern Virginia Medical School (EVMS) in Norfolk. During his time at EVMS, he was awarded membership in the Alpha Omega Alpha and Gold Humanism Honor Societies.
Throughout his urology residency at the University of North Carolina in Chapel Hill, Dr. McBride learned advanced techniques in robotic, endoscopic, male prosthetic, and reconstructive surgery. He then completed a fellowship in microsurgery, male reproductive medicine, and infertility at the Baylor College of Medicine in Houston, Texas, where he trained with a world-renowned specialist in male reproductive medicine, Dr. Larry Lipshultz.
After his own experience with infertility, Dr. McBride developed a strong passion for improving men’s health, especially problems related to sexual function and male infertility. Patients of his private practice receive holistic care for conditions such as erectile dysfunction, low testosterone, Peyronie’s disease, and all aspects of male sexual dysfunction.
As a highly experienced microsurgeon, Dr. McBride performs penile implant procedures, vasectomy reversals, varicocele repair, and prosthetic urological procedures. He employs the da Vinci® robotic system and performs endoscopic surgery when possible.
Dr. McBride maintains active membership in numerous professional organizations, including the American Urological Association, Sexual Medicine Society of North America, American Society for Reproductive Medicine, and Society for Male Reproduction and Urology.
To learn more about the services available from J. Abram McBride, MD, or to schedule an appointment, call the office or use the convenient online booking feature.
Dr. James McBride, MD
Urologist
1644 Medical Center Point
#200
Colorado Springs, CO 80907
Lawrence Scott Wilner, DO, is board certified in family medicine. He is proud to serve patients at Summit Primary Care in Denver, Colorado.
Dr. Wilner loves medicine. Although he has been practicing medicine for more than 25 years, he still attacks each day with the interest and vigor of a freshly graduated physician. He loves his work and his interactions with his patients.
He feels strongly that decision-making in medicine should be shared by the patient with the doctor and all choices should be adequately explained and reviewed. Dr. Wilner strives to make each visit a memorable experience and ensure each patient feels that all of their complaints have not only been heard but also addressed with a detailed plan agreed upon by all parties.
Dr. Wilner graduated from medical school in 1991. He has actively practiced medicine since that time, spending most of it in the family practice area, but also has broad exposure to urgent care medicine, emergency medicine, and sports medicine. He has worked extensively with one of the professional teams in Denver and has been the team physician for Ponderosa High School since 1994. He was elected into the Ponderosa High School Hall of Fame recently for his volunteer service over the last quarter of a century.
Dr. Wilner likes to exercise in his free time and play a fair round of golf. He is married and has two amazing boys.
Dr. Lawrence Wilner, DO
Family Physician
75 Printers Parkway
Ste. 200
Colorado Springs, CO 80910
Dr. Sylvienash Moma, DNP APRN, FNP-BC
Family Physician
411 Lakewood Circle- B114
Colorado Springs, CO 80910
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
Tamara Johnson, MD
Family Physician
6825 S. Galena St
Centennial, CO 80112
Bailie Cronin, DNP, MS, PMHNP-BC, APN, is the founder and CEO of Peak Interactive Wellness in Denver, Colorado. She is a doctorally prepared board-certified psychiatric mental health nurse practitioner (PMHNP) with prescriptive authority providing treatment for psychiatric ailments and disorders across the lifespan.
Bailie graduated from the University of Colorado Anschutz Medical Campus in Aurora with a Doctor of Nursing Practice (DNP) and a Master of Science in Nursing (psychiatric nurse practitioner). Her special interests include children/adolescent mental health, perinatal mental health, those struggling with fertility, those going through life transitions, and young adult mental health.
She provides Spravato treatments and holds a ketamine/psychedelic psychotherapy certificate from PRATI. Bailie is also certified in functional medicine from the Institute of Functional Medicine and incorporates functional medicine approaches into her treatment plans.
Bailie strongly believes that the best treatment combines medication, therapy, and lifestyle alterations. She offers a holistic approach to mental health care, looking at lifestyle choices, including activity level, nutrition, and sleep patterns. Bailie is conservative in her prescribing practices.
In her free time, Bailie enjoys traveling, trying new foods, yoga, reading a good psychological thriller, and spending time outdoors with her husband, dogs, and toddler.
*Bailie is currently on maternity leave and not accepting clients*
Check out her profile on Psychology Today
Email: [email protected]
Phone: 720-460-9081
Fax: 720-707-1640
Doxy.Me Link: https://peakinteractive.doxy.me/drcronin
Dr. Bailie Cronin, APN, MS
Nurse Practitioner
6530 S. Yosemite St.
Suite 330
Greenwood Village, CO 80111
Caroline "Callie" Fernandez, MS, PMHNP-BC, APN, is a Columbia University-trained and board-certified psychiatric nurse practitioner with extensive experience in medication management and psychotherapy. She currently treats clients at Peak Interactive Wellness in Denver, Colorado. Callie sees all ages.
While Callie cares for clients across the lifespan, she has additional training in treating children and adolescents and integrates developmental strategies into her client work.
Since focusing solely on medication might only address some of a client's goals, Callie strives to understand the whole individual to tailor unique treatment recommendations. Her approach considers a client's nutrition, physical activity, social patterns, and unique features such as one's cultural identity and background; her own experience shapes this as a 2nd generation Cuban-American.
Callie strives to create a space where clients feel welcome and seen. By prioritizing active, neutral, and non-judgmental listening, she works to build an interactive assessment with the client's help. From this, Callie works with clients to develop a collaborative treatment plan that encompasses their needs, goals, and evidence-based practices.
Appointment hours:
Monday 8:30 AM-4:45 PM
Tuesday 8:30 AM-5:30 PM
Wednesday 9:30 AM-4:30 PM
Thursday 8:00 AM-3:30 PM
Check out her profile on Psychology Today
Email: [email protected]
Phone: 720-460-9083
Fax: 720-707-1640
Doxy.Me Link: https://doxy.me/callief
Caroline Fernandez
Nurse Practitioner
6530 S. Yosemite St.
Suite 330
Greenwood Village, CO 80111
Bridget Martinson, MA, is a Psychedelic Integration Coach specializing in helping clients seamlessly incorporate their medicine experiences into their daily lives. With a Master's in Counseling and specialized PRATI training, Bridget brings a comprehensive perspective, offering a depth-oriented, person-centered approach tailored to support each individual's unique journey.
Bridget assists clients in finding meaning in and reflecting on any material that surfaced during their journey in a non-ordinary state of consciousness, guiding them towards behavioral changes that integrate these insights into their day-to-day life. This process empowers clients to not only gain understanding but also implement tangible shifts in their behavior and mindset, leading to transformative growth and lasting positive change.
Recognizing the sensitivity surrounding psychedelic experiences, Bridget provides a secure, non-judgmental space where clients can openly express their thoughts, feelings, and revelations. Bridget believes you are the expert of your life. She encourages you to bring your authentic self and journey inward to find the answers and strength you're looking for. Her guidance focuses on unlocking your natural wisdom and potential for personal growth and healing.
In her coaching practice, Bridget places great emphasis on regular self-care for mind, body, and spirit, enabling her to offer support from a place of abundance. Beyond her coaching role, Bridget finds joy in hikes, savoring coffee with a view, exploring new destinations, and reading.
With over 6 years of experience in supporting clients, Bridget has established a reputation for a warm, compassionate, and grounded presence. As a coach, her primary focus is on creating a space where clients feel genuinely seen, heard, understood, and supported.
*Preparatory sessions are also available upon request.
Education and Trainings:
-Masters of Arts in Counseling
-Certified in Foundational Ketamine Assisted Psychotherapy & End of Life / Existential Distress training through the Psychedelic Research and Training Institute
-Completed 30-hour Board Certified Coach Training Program through The Institute for Life Coach Training
-Brainspotting Phase I, II, and Expansion
Bridget Sigette, MA, LPC
Social Worker
6530 S. Yosemite St.
Suite 330
Greenwood Village, CO 80111
Kevin O’Donnell, DO, is an expert sports medicine physician at Revitalize Regenerative Orthopedics LLC in Centennial, Colorado. He is an expert in non-surgical musculoskeletal care and bio-restorative therapies. He also specializes in minimally invasive treatments for osteoarthritis and chronic soft tissue injuries.
Dr. O’Donnell is originally from West Chester, Pennsylvania, and completed medical school at Philadelphia College of Osteopathic Medicine (PCOM) and residency at Lehigh Valley Hospital in Allentown, Pennsylvania.
Dr. O’Donnell subsequently served in the United States Air Force and was named 6th Medical Group Physician of the Year. He completed a sports medicine fellowship at the University of Toledo Hospital in Ohio to further his orthopedic expertise. Dr. O’Donnell then spent 12 years in Flagstaff, Arizona, specializing in minimally invasive and cutting-edge non-operative treatments. While in Flagstaff, he cared for national and international Olympic Athletes training at high altitudes.
Dr. O’Donnell was previously an adjunct professor at A. T. Still University in Kirksville, Missouri. He looks forward to providing patients with the best possible non-surgical options available to help relieve their pain.
In his spare time, he enjoys reading, gardening, and traveling. Dr. O’Donnell also enjoys staying active. He is an avid sports fan and enjoys both participating in and watching a wide variety of sports. Dr. O’Donnell resides in Highlands Ranch with his wife, Meghan, and three energetic boys, Cole, Ryan, and Jack.
Kevin O'Donnell
Orthopedic Surgeon
5161 E Arapahoe Rd
Suite 250
Centennial, CO 80122
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.
Heather Whiting, PAC
Family Physician
5420 South Quebec Street
Suite 100
Greenwood Village, CO 80111
Nicole Sheeder, FNP
Family Physician
8100 E Union Ave
#104
Denver, CO 80237
Douglas Hallmark, MD, is an experienced and highly respected family medicine practitioner at Douglas Family Medicine who is delighted to be serving the population of Castle Rock, Colorado, and the surrounding areas.
Dr. Hallmark grew up in Colorado, graduating from Arapahoe High School in Centennial in 1970. He graduated magna cum laude with a degree in Chemistry from Baylor University in Waco, Texas, then pursued his medical degree at the University of Texas Medical Branch (UTMB) in Galveston. Dr. Hallmark graduated from UTMB in 1979 and practiced in East Texas for the next 10 years.
Dr. Hallmark’s life-long desire was to be a small-town family doctor who not only served his patients but developed close relationships with them. He has achieved this goal in his practice of medicine in Castle Rock for the past 20 years, providing exceptional medical care that recognizes the importance of treating every patient as a unique individual. By combining his considerable experience of primary care with the latest advancements in medicine, Dr. Hallmark is able to offer residents of Castle Rock the most up-to-date treatments available with the personal touch of hometown care.
Dr. Hallmark and his wife, Marie, have been married for over 30 years and have six children and one grandson.
Dr. Belton Hallmark, MD
Family Physician
1189 S. Perry St.
Suite 230
Castle Rock, CO 80104
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.
Jodie Gahn-stahley, PA
Family Physician
1189 S. Perry St.
Suite 230
Castle Rock, CO 80104
Dr. Analice Hoffenberg, MD, MSPH
Family Physician
1780 S. Bellaire St.
302
Denver, CO 80222