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Internal Medicine Doctors in Pennsylvania

Data updated monthly · Last refresh October 2026

7,285 Internal Medicine providers practice in Pennsylvania, including 1,249 (17%) offering telehealth. The largest concentration is in Philadelphia. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.

7,285providers
1,249telehealth
Philadelphiatop city

Internal Medicine by city in Pennsylvania

Choose a city to see providers there.

Internal Medicine in Philadelphia1,839 providers
Internal Medicine in Pittsburgh748 providers
Internal Medicine in Allentown215 providers
Internal Medicine in Harrisburg183 providers
Internal Medicine in York162 providers
Internal Medicine in Bethlehem158 providers
Internal Medicine in Wynnewood149 providers
Internal Medicine in Scranton133 providers
Internal Medicine in Danville130 providers
Internal Medicine in Hershey122 providers
Internal Medicine in West Reading112 providers
Internal Medicine in Abington107 providers
Internal Medicine in Easton105 providers
Internal Medicine in Erie99 providers
Internal Medicine in Lancaster91 providers
Internal Medicine in Johnstown86 providers
Internal Medicine in Wilkes Barre61 providers
Internal Medicine in West Chester57 providers
Internal Medicine in Sayre50 providers
Internal Medicine in Bryn Mawr49 providers
Internal Medicine in Media47 providers
Internal Medicine in Butler44 providers
Internal Medicine in Reading44 providers
Internal Medicine in Langhorne41 providers

Internal Medicine providers in Pennsylvania

Listed by city, largest first. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.

Dr. Lucas Chierici Pereira, MD
Philadelphia, PA · No drug or device payments recorded (2025) · (215) 456-7890
Dr. Lucy Guan, MD
Philadelphia, PA · No drug or device payments recorded (2025) · (800) 836-7536
Dr. Lucy Witchell, MD
Philadelphia, PA · No drug or device payments recorded (2025) · (617) 414-7399
Dr. Luigi Cianci, MD
Philadelphia, PA · No drug or device payments recorded (2025) · (215) 365-5545
Dr. Luis Eraso, M.D.
Philadelphia, PA · $94 in drug and device payments (2025) · Telehealth · (215) 955-4901
Dr. Luis Taboada, M.D.
Philadelphia, PA · No drug or device payments recorded (2025) · (215) 955-6180
Dr. Lyan Chang Sedano, M.D.
Philadelphia, PA · No drug or device payments recorded (2025) · (215) 707-4085
Dr. Lydia Mazze, MD
Philadelphia, PA · No drug or device payments recorded (2025) · (800) 836-7536
Dr. Macy Gatti, MD
Philadelphia, PA · No drug or device payments recorded (2025) · (215) 662-2250
Dr. Madeline Chandra, MD
Philadelphia, PA · No drug or device payments recorded (2025) · (215) 316-5151
Dr. Madelyn Hansen, MD
Philadelphia, PA · No drug or device payments recorded (2025) · (215) 316-5151
Dr. Madiha Bari
Philadelphia, PA · No drug or device payments recorded (2025) · (850) 321-8624
Dr. Madison Force, MD
Philadelphia, PA · $1,107 in drug and device payments (2025) · (215) 955-8465
Dr. Mae Caleb, M.D.
Philadelphia, PA · No drug or device payments recorded (2025) · (215) 487-4334
Dr. Mahdis Sarrafi, M.D.
Philadelphia, PA · No drug or device payments recorded (2025) · (215) 612-4000
Dr. Mahnoor Javaid, MD
Philadelphia, PA · No drug or device payments recorded (2025) · (267) 565-9708
Dr. Makayla Testa, DO
Philadelphia, PA · No drug or device payments recorded (2025) · (215) 707-1800
Dr. Mak Djulbegovic, MD, MS
Philadelphia, PA · $267 in drug and device payments (2025) · (215) 955-8465
Dr. Mala Kailasam, MD
Philadelphia, PA · $15 in drug and device payments (2025) · (215) 728-6900
Dr. Malgorzata Mysliwiec, MD
Philadelphia, PA · No drug or device payments recorded (2025) · (215) 662-9189
Dr. Maliha Ahmed, D.O.
Philadelphia, PA · No drug or device payments recorded (2025) · (215) 762-7000
Dr. Maliha Khan, MD
Philadelphia, PA · $197 in drug and device payments (2025) · Telehealth · (219) 669-0518
Dr. Manasa Vallabhaneni, MD
Philadelphia, PA · No drug or device payments recorded (2025) · (215) 707-1800
Dr. Mandi Liu, MD
Philadelphia, PA · No drug or device payments recorded (2025) · (215) 707-4085
Dr. Manijeh Bahremand, M.D.
Philadelphia, PA · No drug or device payments recorded (2025) · (215) 670-5843
Dr. Manjari Sharma, M.D.
Philadelphia, PA · $23 in drug and device payments (2025) · (215) 707-1622
Dr. Marc Petrone, D.O.
Philadelphia, PA · $13 in drug and device payments (2025) · (215) 755-2869
Dr. Marc Shalaby, MD
Philadelphia, PA · No drug or device payments recorded (2025) · Telehealth · (215) 662-9990
Dr. Margaret Fisher
Philadelphia, PA · No drug or device payments recorded (2025) · (800) 836-7536
Dr. Margaret Rowe
Philadelphia, PA · No drug or device payments recorded (2025) · (215) 662-2725
Dr. Margaret Staniszewski
Philadelphia, PA · $16 in drug and device payments (2025) · (484) 622-1199
Dr. Margaret Wang, MD
Philadelphia, PA · No drug or device payments recorded (2025) · (215) 444-7672
Dr. Maria Duran-guerraty, M.D.
Philadelphia, PA · No drug or device payments recorded (2025) · (215) 823-5800
Dr. Maria Escorcia De Leon, M.D.
Philadelphia, PA · No drug or device payments recorded (2025) · (215) 707-1622
Dr. Maria Florence Nabong, MD
Philadelphia, PA · No drug or device payments recorded (2025) · (215) 707-2000
Dr. Maria Helena Siqueira Tavares De Melo
Philadelphia, PA · $290 in drug and device payments (2025) · (215) 456-7890
Dr. Mariah Presbery, MD
Philadelphia, PA · No drug or device payments recorded (2025) · (215) 707-2000
Dr. Maria Pazan Avellan, DO
Philadelphia, PA · No drug or device payments recorded (2025) · (800) 836-7536
Dr. Maria Pellecchia, D.O.
Philadelphia, PA · No drug or device payments recorded (2025) · (215) 746-3535
Dr. Maria Winte, MD
Philadelphia, PA · $365 in drug and device payments (2025) · (215) 955-8465
Dr. Marie Dimattia, D.O.
Philadelphia, PA · No drug or device payments recorded (2025) · (215) 955-0735
Dr. Marie Majelle Yu, MD
Philadelphia, PA · No drug or device payments recorded (2025) · (215) 342-2175
Dr. Marie Tan, MD
Philadelphia, PA · No drug or device payments recorded (2025) · (215) 707-4085
Dr. Marilyn Howarth, MD
Philadelphia, PA · No drug or device payments recorded (2025) · (215) 662-6963
Dr. Marina Hines, MD
Philadelphia, PA · No drug or device payments recorded (2025) · Telehealth · (215) 707-1800
Dr. Marina Pavia, D.O.
Philadelphia, PA · No drug or device payments recorded (2025) · (215) 662-4000
Dr. Mario Littman, M.D.
Philadelphia, PA · $381 in drug and device payments (2025) · (215) 878-7050
Dr. Marion Vetter, MD
Philadelphia, PA · No drug or device payments recorded (2025) · (215) 662-2468
Dr. Marisa Gefen, M.D.
Philadelphia, PA · No drug or device payments recorded (2025) · (215) 444-7470
Dr. Mariya Vengrenyuk, M.D.
Philadelphia, PA · $106 in drug and device payments (2025) · (215) 728-2276

Conditions Internal Medicine providers in Pennsylvania commonly treat

Patients often search by condition rather than specialty. These are conditions typically managed by Internal Medicine providers. Individual practices vary, so confirm with the provider before booking.

Common questions

How many Internal Medicine providers are in Pennsylvania?

There are 7,285 Internal Medicine providers with active NPI records practicing in Pennsylvania, according to federal NPPES data refreshed monthly.

Do Internal Medicine providers in Pennsylvania offer telehealth?

Yes. 1,249 of the 7,285 Internal Medicine providers in Pennsylvania (about 17%) report offering telehealth services in CMS data.

Which cities in Pennsylvania have the most Internal Medicine providers?

Philadelphia (1,839), Pittsburgh (748), Allentown (215) have the highest concentration of Internal Medicine providers in Pennsylvania.

How many Internal Medicine providers in Pennsylvania received drug or device company payments?

2,354 of 7,285 Internal Medicine providers in Pennsylvania (32%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.

What conditions do Internal Medicine providers in Pennsylvania treat?

Internal Medicine providers commonly treat high blood pressure, type 2 diabetes, high cholesterol, preventive care, chronic disease management and related conditions. Individual practices vary, so confirm with the provider before booking.

Where does this data come from?

Provider counts and profiles come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.

Do most Internal Medicine Doctors in Pennsylvania work in independent practices or large health systems?

Among 3,500 Internal Medicine Doctors in Pennsylvania enrolled in Medicare, 12% bill through a solo or small practice with fewer than 10 clinicians, 10% through a mid-size group of 10 to 99, and 78% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.

Which hospitals do Internal Medicine Doctors in Pennsylvania work at?

According to CMS facility affiliation records, the Pennsylvania hospitals where the most Internal Medicine Doctors hold privileges are Hospital of Univ of Pennsylvania in Philadelphia; Magee Womens Hospital of Upmc Health System in Pittsburgh; St Lukes Hospital in Bethlehem.

Related reading on HealthcareDiscovery.AI

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Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory. Are you a Internal Medicine in Pennsylvania? Get featured.