At Personal Health MD, we prioritize a patient-centric approach, blending academic excellence with holistic and integrative medicine. Our compassionate team is committed to delivering personalized care that nurtures your overall well-being.
A Culture Dedicated To Care From The Heart
Partnership for the Long Term
We are committed to building lasting relationships with our patients, ensuring consistent and comprehensive care throughout every stage of life. Our partnership with you is rooted in trust, personalized attention, and proactive health management.
- Dedicated Continuity of Care: Seamless coordination of your healthcare needs across all specialties.
- Preventative Health Focus: Tailored wellness plans designed to prevent illness and promote long-term vitality.
- Holistic Approach: Integrative care that considers the physical, mental, and emotional aspects of your health.
Unparalleled Expertise
Dr. Donahue founded Personal Health MD in 2011 to combine academic medical excellence with safe holistic functional medicine care.
“It’s vital to take the time to understand each patient in-depth — as a combination of their biochemistry, epigenetics, goals, and relationships. Only then can we best combine medical science with the art of healing to optimize health and treat illness.”
Working with Harvard specialists to provide the most seamless healthcare possible Dr. Donahue is affiliated with Brigham and Women’s Hospital as an Associate Physician, now Mass General Brigham, and with Beth Israel Hospital.
Dr. Donahue has an MD from the University of Massachusetts Medical School and is board certified in Family Medicine from the Maine-Dartmouth Residency Program. As Medical Director at the Vinalhaven Island Medical Center in Maine for 10 years he developed the fastest pre-hospital advanced cardiac care for heart attacks in New England, and cared for adults, children, and the elderly.
Moving to Boston he completed his MPH at Harvard School of Public Health in Health Policy where he also served as a visiting scientist. For 6 years he worked clinically at Harvard University Health Services teaching Harvard medical students as a Clinical Instructor in Medicine. He is a member of Massachusetts Medical Society.
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Dr. Walkey is Board-Certified in Internal Medicine and Lifestyle Medicine with twenty years of Primary Care experience. She earned her medical degree from the University of Massachusetts Medical School in 2002. As the Chief Medical resident during her Tufts Internal Medicine residency, she led in combining rigorous academic medicine with a more personalized interactive approach, becoming assistant professor of medicine at Tufts Medical Center. She also served the diverse population within the VA health system addressing complex medical and social conditions.
Dr. Walkey is deeply passionate about helping patients using Lifestyle Medicine by taking a holistic approach to nutrition, fitness, healthy sleep, and sense of purpose to improve performance, longevity, and overall wellbeing.
Beyond work, Dr. Walkey enjoys cooking plant-based recipes, playing pickleball, singing karaoke, and trying new adventures like surfing and winter ocean plunges.
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Samira Gonzalez earned her Certified Medical Assistant (CMA) degree from Bunker Hill Community College in 2007, graduating with honors. She began her career at Dana-Farber Cancer Institute, where she worked from 2007 to 2015. During her time there, she advanced to the role of Supervising Medical Assistant in 2013, reflecting her compassion, leadership, and dedication to patient-centered care.
Samira joined the PHMD team in 2015 as a Certified Medical Assistant and was promoted to Practice Manager in 2020. In 2025, she was named Executive Director, a role in which she continues to lead with empathy, professionalism, and a deep commitment to excellence in healthcare.
Known for her warm smile and heartfelt approach, Samira strives to make each patient’s visit a positive and welcoming experience. She firmly believes that the key to success in healthcare is care that comes from the heart.
ClosePractice FAQ
What are the benefits of concierge medicine?
- Personalized Attention: Our patients receive individualized care with extended appointment times.
- Direct Access and Availability: Enjoy 24/7 access to your physician via phone for urgent needs, direct email communication, plus daily slots held for same-day sick visits during office hours.
- Long-term Relationships: Our model fosters stronger doctor-patient bonds through continuous, personalized interactions.
- Coordination of Care: We coordinate with specialists and other healthcare providers to ensure an integrated approach to managing your health.
How do you work with my medical insurance?
Our team is dedicated to obtaining insurance referrals and prior authorization approvals promptly to prevent potential denials and avoid direct billing to patients. Whether it requires a phone call or a portal request, we handle it efficiently.
What happens in case of emergency?
In an emergency, call 911 immediately. For urgent but non-emergency situations, patients have 24/7 access to their physician via phone/text.
What treatment centers are you affiliated with?
Our physicians are affiliated with Brigham & Women’s Hospital, Massachusetts General Hospital, and Beth Israel Deaconess Medical Center. We can work with hospitals and specialist in any network locally or nationally.
How many patients are in each physician's panel?
Each of our physicians maintains a full panel of 150 patients. Why 150? This allows our physicians ample time to deliver personalized care.
