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Internal Medicine in Lancaster, Pennsylvania

Data updated monthly · Last refresh September 2026

91 Internal Medicine providers practice in Lancaster, and 31% received drug or device company payments in 2025. Listings are drawn from federal public records and are not endorsements.

Internal Medicine providers in Lancaster

Listed alphabetically. 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. Aaron Hiller
Lancaster, PA · No drug or device payments recorded (2025) · Telehealth · (717) 544-3191
Dr. Alana Feiler, MD
Lancaster, PA · $103 in drug and device payments (2025) · (717) 544-8144
Dr. Anthony Lacorte, MD
Lancaster, PA · $420 in drug and device payments (2025) · (717) 231-8772
Dr. Anthony Samphilipo, D.O.
Lancaster, PA · $56 in drug and device payments (2025) · (717) 544-3191
Dr. Arif Hafiz, MD
Lancaster, PA · $56 in drug and device payments (2025) · (717) 231-8772
Dr. Arshdeep Gujral, M.D.
Lancaster, PA · No drug or device payments recorded (2025) · (717) 544-3022
Dr. Bradford Granger, M.D.
Lancaster, PA · No drug or device payments recorded (2025) · Telehealth · (717) 544-3191
Dr. Caitlin Inners, M.D.
Lancaster, PA · No drug or device payments recorded (2025) · (717) 569-6481
Dr. Carlos Fermin, M.D.
Lancaster, PA · No drug or device payments recorded (2025) · (717) 544-8144
Dr. Carlos Sanchez, MD
Lancaster, PA · $6 in drug and device payments (2025) · (717) 393-8131
Dr. Carrie Goldkamp, VMD, DACVIM
Lancaster, PA · No drug or device payments recorded (2025) · (717) 295-7387
Dr. Chinenye Emuwa, MD
Lancaster, PA · $185 in drug and device payments (2025) · Telehealth · (717) 735-0336
Dr. Christopher Addis, M.D.
Lancaster, PA · No drug or device payments recorded (2025) · (717) 544-8144
Dr. Christopher Weese, M.D.
Lancaster, PA · $106 in drug and device payments (2025) · (717) 544-8144
Dr. Dale Lent, DO
Lancaster, PA · $41 in drug and device payments (2025) · (717) 291-8512
Dr. Daniel Mast, D.O.
Lancaster, PA · No drug or device payments recorded (2025) · (717) 299-6371
Dr. Don Nguyen, M.D.
Lancaster, PA · No drug or device payments recorded (2025) · (717) 925-2995
Dr. Edwin Campoverde Hernandez, MD
Lancaster, PA · No drug or device payments recorded (2025) · Telehealth · (717) 544-8144
Dr. Elizabeth Ehrlich Chapman, DO
Lancaster, PA · No drug or device payments recorded (2025) · (717) 869-4600
Dr. Elizabeth Jennings, DO
Lancaster, PA · No drug or device payments recorded (2025) · (717) 544-8144
Dr. Elizabeth O'connor-boll, MD
Lancaster, PA · No drug or device payments recorded (2025) · (717) 544-3191
Dr. Fariha Sarij, M.D.
Lancaster, PA · No drug or device payments recorded (2025) · Telehealth · (717) 544-0700
Dr. Hyasmine Charles, MD
Lancaster, PA · No drug or device payments recorded (2025) · Telehealth · (717) 295-2323
Dr. Ifeoluwapo Eleyinafe, MD
Lancaster, PA · No drug or device payments recorded (2025) · (717) 544-8144
Dr. Jaime Moellman, MD
Lancaster, PA · $186 in drug and device payments (2025) · (717) 544-8144
Dr. James Nels, D.O.
Lancaster, PA · No drug or device payments recorded (2025) · (717) 988-0000
Dr. James Spicher, MD
Lancaster, PA · No drug or device payments recorded (2025) · (717) 327-4694
Dr. Jarol Boan, M.D.
Lancaster, PA · No drug or device payments recorded (2025) · (717) 397-2738
Dr. Jennie Barbieri, MD
Lancaster, PA · No drug or device payments recorded (2025) · (717) 544-9400
Dr. Jennifer Delutis, M.D.
Lancaster, PA · No drug or device payments recorded (2025) · (717) 544-8144
Dr. J. Mohler, MD
Lancaster, PA · No drug or device payments recorded (2025) · (717) 393-8131
Dr. Joan Harrold, MD
Lancaster, PA · No drug or device payments recorded (2025) · (717) 295-3900
Dr. John Derderian, DO
Lancaster, PA · $31 in drug and device payments (2025) · (717) 544-5511
Dr. John King, MD
Lancaster, PA · No drug or device payments recorded (2025) · (717) 397-2738
Dr. John Scott, MD
Lancaster, PA · No drug or device payments recorded (2025) · (717) 397-2738
Dr. Joseph Awantang, M.D.
Lancaster, PA · $31 in drug and device payments (2025) · (717) 544-8144
Dr. Joseph Del Castillo, M.D.
Lancaster, PA · $39 in drug and device payments (2025) · (717) 544-5090
Dr. Judy Stone, M.D.
Lancaster, PA · No drug or device payments recorded (2025) · (301) 777-1875
Dr. Kamini Jagdish, MD
Lancaster, PA · No drug or device payments recorded (2025) · (717) 231-8772
Dr. Kathryn Deprimo, MD, MHA
Lancaster, PA · $37 in drug and device payments (2025) · (717) 544-5511
Dr. Kriti Suwal, MD
Lancaster, PA · $57 in drug and device payments (2025) · (717) 544-8144
Dr. Larien Bieber, MD
Lancaster, PA · No drug or device payments recorded (2025) · (717) 397-2738
Dr. Lauren Harter
Lancaster, PA · $140 in drug and device payments (2025) · (717) 544-8144
Dr. Lydia Deekollu
Lancaster, PA · $52 in drug and device payments (2025) · (717) 544-8144
Dr. Lydia Slater, DO
Lancaster, PA · No drug or device payments recorded (2025) · Telehealth · (717) 544-3191
Dr. Maria Calderon, MD
Lancaster, PA · No drug or device payments recorded (2025) · Telehealth · (717) 544-3191
Dr. Marianne Kelly, M.D.
Lancaster, PA · No drug or device payments recorded (2025) · (717) 291-4082
Dr. Marilyn D'andrea-spica, MD
Lancaster, PA · No drug or device payments recorded (2025) · (717) 397-2738
Dr. Marion George, MD
Lancaster, PA · No drug or device payments recorded (2025) · Telehealth · (717) 544-0700
Dr. Mark Simmons, M.D.
Lancaster, PA · No drug or device payments recorded (2025) · (717) 544-3191

Conditions Internal Medicine providers in Lancaster, 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 Lancaster, Pennsylvania?

There are 91 Internal Medicine providers with active NPI records practicing in Lancaster, according to federal NPPES data refreshed monthly.

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

28 of 91 (31%) 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 Lancaster treat?

Internal Medicine providers in Lancaster 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 records 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.

All specialties in Lancaster Internal Medicine across Pennsylvania

Try a city like Tucson, a zip like 85016, or a specialty like psychiatry. For a doctor by name, use the full search.
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.