Dr. Mark Thomas Watkins
Dr. Mark Thomas Watkins, DO is a cardiologist with a subspecialty focus on adult congenital heart disease, practicing in Philadelphia, Pennsylvania. He is affiliated with Pennsylvania Hospital, one of the nation’s oldest and most respected medical institutions.
About Dr. Mark Thomas Watkins
Dr. Mark Thomas Watkins, DO is a cardiologist with a subspecialty focus on adult congenital heart disease, practicing in Philadelphia, Pennsylvania. He is affiliated with Pennsylvania Hospital, one of the nation’s oldest and most respected medical institutions. Dr. Watkins practices at 1348 Bainbridge St, Philadelphia, PA 19147 and is board-certified in cardiovascular disease by the American Board of Internal Medicine (ABIM).
A graduate of the Philadelphia College of Osteopathic Medicine (Class of 1986), Dr. Watkins holds an active Pennsylvania state medical license and is a member of the American Osteopathic Association. With a unique focus on adult congenital heart disease — a subspecialty caring for adults born with structural heart defects — Dr. Watkins serves a patient population that requires highly specialized and continuous long-term cardiac management.
Education & Training
Medical Degree
- Philadelphia College of Osteopathic Medicine — Doctor of Osteopathic Medicine (DO), Class of 1986
Board Certifications
- American Board of Internal Medicine (ABIM) — Cardiovascular Disease
State Licensure
- Pennsylvania State Medical License (Active, 1987–2026)
Professional Memberships
- American Osteopathic Association (AOA) — Member
Areas of Expertise / Conditions Treated
- Adult Congenital Heart Disease (ACHD)
- Structural Heart Disease Management
- Coronary Artery Disease
- Heart Valve Disorders
- Atrial Septal Defects and Ventricular Septal Defects in Adults
- Cardiac Risk Assessment and Prevention
- Hypertension and Hyperlipidemia
- Congestive Heart Failure
Why Patients Choose Dr. Mark Watkins
- Rare subspecialty focus in adult congenital heart disease — a critical service for adults living with heart defects diagnosed in childhood.
- ABIM board-certified in cardiovascular disease, meeting the highest standards of internal medicine cardiology.
- Affiliated with the historic and prestigious Pennsylvania Hospital in Philadelphia’s vibrant medical community.
- Decades of clinical experience offering continuity of care for complex cardiac patients.
- Osteopathic training provides a holistic, whole-patient perspective to cardiovascular care.
Patient Rating Snapshot
| Category | Score | Out of | Notes |
| Overall Rating | 4.3 | 5.0 | Based on verified patient reviews |
| Bedside Manner | 4.4 | 5.0 | Patients appreciate his patient-centered approach |
| Wait Time | 4.0 | 5.0 | Specialty care with manageable wait times |
| Total Reviews | ~25+ | N/A | Aggregated across multiple platforms |
FAQs
Q: What is adult congenital heart disease?
A: Adult congenital heart disease (ACHD) refers to heart conditions present from birth that persist into adulthood. Advances in pediatric cardiac surgery mean many patients now live well into adulthood requiring ongoing specialized care.
Q: Is Dr. Watkins a DO or an MD?
A: Dr. Watkins holds a Doctor of Osteopathic Medicine (DO) degree from the Philadelphia College of Osteopathic Medicine. DOs receive equivalent medical training to MDs with additional focus on the musculoskeletal system and holistic care.
Q: Where is Dr. Watkins’ practice?
A: His practice is at 1348 Bainbridge St, Philadelphia, PA 19147. Phone: (215) 563-0658. Fax: (215) 923-0365.
Q: Which hospital is Dr. Watkins affiliated with?
A: Dr. Watkins is affiliated with Pennsylvania Hospital in Philadelphia, PA.
Q: Does Dr. Watkins see general cardiology patients?
A: While Dr. Watkins has a subspecialty focus in adult congenital heart disease, general cardiology conditions such as coronary artery disease, hypertension, and heart failure are also within his scope of practice.
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