Gastroenterologists in Pennsylvania
Data updated monthly · Last refresh October 2026
1,053 Gastroenterology providers practice in Pennsylvania, including 318 (30%) 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.
1,053providers
318telehealth
Philadelphiatop city
Gastroenterology by city in Pennsylvania
Choose a city to see providers there.
Where Gastroenterologists in Pennsylvania practice
From CMS Medicare enrollment records covering 699 of the 1,053 providers listed here (66%). Providers who do not bill Medicare are not included in these figures.
5%solo or small practice (under 10 clinicians)
6%mid-size group (10 to 99)
89%large group or health system (100+)
Largest practice groups
| Group (as registered with Medicare) | Gastroenterologists | All clinicians in group | Main city |
| Regional Gastroenterology Associates of Lancaster, LTD. | 119 | 248 | Lancaster |
| University of Penn-Medical Group | 61 | 3,433 | Philadelphia |
| Geisinger Clinic | 51 | 3,432 | Danville |
| Jefferson University Physicians | 41 | 1,528 | Philadelphia |
| Wellspan Medical Group | 38 | 2,438 | York |
Hospitals where they hold privileges
| Hospital | City | Ownership | CMS star rating | Gastroenterologists affiliated |
| Hospital of Univ of Pennsylvania | Philadelphia | Nonprofit | 5 of 5 | 101 |
| St Lukes Hospital | Bethlehem | Nonprofit | 5 of 5 | 61 |
| Chester County Hospital | West Chester | Nonprofit | 5 of 5 | 50 |
| Thomas Jefferson University Hospital | Philadelphia | Nonprofit | 3 of 5 | 49 |
| Penn Presbyterian Medical Center | Philadelphia | Nonprofit | 4 of 5 | 46 |
Sources: CMS Doctors and Clinicians (August 2026) and Facility Affiliation files (August 2026); hospital ownership type and overall star rating from CMS Hospital General Information (July 2026). A clinician in several groups is counted once, in the largest group they bill through. Ownership type is what the hospital reports to CMS; it does not show private equity or other investor ownership. How we build this directory.
Gastroenterology 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. Aamir ShahzadAllentown, PA · $431 in drug and device payments (2025) ·
(610) 821-2828 Dr. Aaron Mendelson, M.D.Allentown, PA · No drug or device payments recorded (2025) · Telehealth ·
(610) 821-2828 Dr. Adam Peyton, DOAllentown, PA · $241,499 in drug and device payments (2025) · Telehealth ·
(610) 821-2828 Dr. Allison Baragona, M.D.Allentown, PA · No drug or device payments recorded (2025) · Telehealth ·
(610) 821-2828 Dr. Amy Javia, MDAllentown, PA · No drug or device payments recorded (2025) · Telehealth ·
(610) 821-2828 Dr. Anastasia Shnitser, MDAllentown, PA · $261 in drug and device payments (2025) · Telehealth ·
(610) 821-2828 Dr. Anthony Auteri, MDAllentown, PA · $13 in drug and device payments (2025) ·
(610) 821-2828 Dr. Bo Hyung YoonAllentown, PA · $112 in drug and device payments (2025) ·
(484) 526-6545 Dr. Bonnie Patek, DOAllentown, PA · No drug or device payments recorded (2025) · Telehealth ·
(610) 821-2828 Dr. Brittney Shupp, DOAllentown, PA · No drug or device payments recorded (2025) ·
(484) 526-6545 Dr. Bryan WeyAllentown, PA · $125 in drug and device payments (2025) ·
(484) 526-6545 Dr. Carl Dangelo, M.D.Allentown, PA · No drug or device payments recorded (2025) ·
(610) 821-2828 Dr. Charles Brooks, MDAllentown, PA · No drug or device payments recorded (2025) ·
(610) 439-8551 Dr. Cristina Angelo, MDAllentown, PA · $90 in drug and device payments (2025) · Telehealth ·
(610) 969-4370 Dr. Eric NellisAllentown, PA · No drug or device payments recorded (2025) · Telehealth ·
(215) 707-3397 Dr. Frederic Stelzer, MDAllentown, PA · No drug or device payments recorded (2025) ·
(610) 821-2828 Dr. Glenn Short, MDAllentown, PA · No drug or device payments recorded (2025) ·
(610) 821-2828 Dr. Harjit Singh, MDAllentown, PA · $290 in drug and device payments (2025) ·
(610) 821-2828 Dr. Hiral Shah, MDAllentown, PA · $6,244 in drug and device payments (2025) · Telehealth ·
(610) 821-2828 Dr. Jacob Pickle, MDAllentown, PA · $1,302 in drug and device payments (2025) ·
(610) 439-8551 Dr. James Cornell, MDAllentown, PA · No drug or device payments recorded (2025) ·
(610) 821-2828 Dr. John Taus, DOAllentown, PA · No drug or device payments recorded (2025) ·
(610) 821-2828 Dr. Jonathan Ohm, M.D.Allentown, PA · No drug or device payments recorded (2025) ·
(484) 526-6545 Dr. Kyle Helwig, MDAllentown, PA · No drug or device payments recorded (2025) ·
(610) 821-2828 Dr. Lawrence Bardawil, MDAllentown, PA · No drug or device payments recorded (2025) ·
(610) 439-8551 Dr. Matthew Sullivan, D.O.Allentown, PA · No drug or device payments recorded (2025) · Telehealth ·
(610) 821-2828 Dr. Maureen LingannaAllentown, PA · No drug or device payments recorded (2025) · Telehealth ·
(610) 821-2828 Dr. Mazen TolaymatAllentown, PA · $61 in drug and device payments (2025) · Telehealth ·
(610) 821-2828 Dr. Michael Engels, M.D.Allentown, PA · $44,591 in drug and device payments (2025) · Telehealth ·
(610) 821-2828 Dr. Paola Blanco, M.D.Allentown, PA · $204 in drug and device payments (2025) · Telehealth ·
(610) 821-2828 Dr. Patrick Hickey, D.O.Allentown, PA · No drug or device payments recorded (2025) · Telehealth ·
(610) 821-2828 Dr. Richard London, M.D.Allentown, PA · No drug or device payments recorded (2025) ·
(610) 821-2828 Dr. Ronald Bross, MDAllentown, PA · $15 in drug and device payments (2025) · Telehealth ·
(610) 821-2828 Dr. Samarth Patel, MBBSAllentown, PA · $127 in drug and device payments (2025) ·
(610) 821-2828 Dr. Sean Lacey, MDAllentown, PA · $1,236 in drug and device payments (2025) ·
(610) 439-8551 Dr. Shashin Shah, M.D.Allentown, PA · $19,659 in drug and device payments (2025) · Telehealth ·
(610) 821-2828 Dr. She-yan Wong, M.D.Allentown, PA · No drug or device payments recorded (2025) · Telehealth ·
(610) 821-2828 Dr. Tanveer Imam, MDAllentown, PA · $79 in drug and device payments (2025) · Telehealth ·
(610) 821-2828 Dr. Tarika Chowdhary, MDAllentown, PA · $17 in drug and device payments (2025) ·
(610) 969-4370 Dr. Travis Magdaleno, D.O.Allentown, PA · $918 in drug and device payments (2025) · Telehealth ·
(484) 661-4650 Dr. Zachary Zator, M.D.Allentown, PA · No drug or device payments recorded (2025) · Telehealth ·
(610) 821-2828 Dr. Anan Said, MDAltoona, PA · $16,438 in drug and device payments (2025) ·
(914) 946-5469 Dr. David Kerstetter, M.D.Altoona, PA · $161 in drug and device payments (2025) ·
(814) 946-5469 Dr. Edmond Bouassaf, M.D.Altoona, PA · $1,314 in drug and device payments (2025) ·
(814) 946-5469 Dr. Jonathan Grier, M.D.Altoona, PA · No drug or device payments recorded (2025) ·
(814) 941-7170 Dr. Lance Defrancisco, M.D.Altoona, PA · No drug or device payments recorded (2025) ·
(814) 946-5469 Dr. Mitul Patel, MDAltoona, PA · $25,519 in drug and device payments (2025) ·
(814) 946-5469 Dr. Rajih Alkhafaji, M.D.Altoona, PA · $550 in drug and device payments (2025) ·
(814) 946-5469 Dr. Robert Bailey, D.O.Altoona, PA · $1,509 in drug and device payments (2025) ·
(814) 946-5469 Conditions Gastroenterology providers in Pennsylvania commonly treat
Patients often search by condition rather than specialty. These are conditions typically managed by Gastroenterology providers. Individual practices vary, so confirm with the provider before booking.
- Acid reflux
- IBS
- Crohn disease
- Ulcerative colitis
- Celiac disease
- Colon cancer screening
Common questions
How many Gastroenterology providers are in Pennsylvania?There are 1,053 Gastroenterology providers with active NPI records practicing in Pennsylvania, according to federal NPPES data refreshed monthly.
Do Gastroenterology providers in Pennsylvania offer telehealth?Yes. 318 of the 1,053 Gastroenterology providers in Pennsylvania (about 30%) report offering telehealth services in CMS data.
Which cities in Pennsylvania have the most Gastroenterology providers?Philadelphia (222), Pittsburgh (104), Allentown (41) have the highest concentration of Gastroenterology providers in Pennsylvania.
How many Gastroenterology providers in Pennsylvania received drug or device company payments?644 of 1,053 Gastroenterology providers in Pennsylvania (61%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
What conditions do Gastroenterology providers in Pennsylvania treat?Gastroenterology providers commonly treat acid reflux, IBS, Crohn disease, ulcerative colitis, celiac disease 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 Gastroenterologists in Pennsylvania work in independent practices or large health systems?Among 699 Gastroenterologists in Pennsylvania enrolled in Medicare, 5% bill through a solo or small practice with fewer than 10 clinicians, 6% through a mid-size group of 10 to 99, and 89% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Gastroenterologists in Pennsylvania work at?According to CMS facility affiliation records, the Pennsylvania hospitals where the most Gastroenterologists hold privileges are Hospital of Univ of Pennsylvania in Philadelphia; St Lukes Hospital in Bethlehem; Chester County Hospital in West Chester.
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