Clinicians affiliated with Regional Gastroenterology Associates Of Lancaster, Ltd.
244 clinicians on file with this group · most practice in Philadelphia-Camden-Wilmington, PA-NJ-DE-MD · PAC ID 4688575434
Affiliation snapshotOctober 2, 2026CMS Doctors and Clinicians file, current snapshot (no end-of-2024 archive), applied to 2024
Activity year2024Medicare Part B claims, Original Medicare fee-for-service
212 clinicians affiliated with Regional Gastroenterology Associates Of Lancaster, Ltd. are in the 2024 Medicare Part B data, 138 of them physicians. Data years with affiliated clinicians: 2020, 2021, 2022, 2023, 2024.
Each clinician's exact figures are in their Physician Report, from their page; a specialty's figures in this market are in a Market Comparison. View sample report · Already purchased? Open your report
Affiliated clinicians by specialty, 2024
All specialties · Gastroenterology (121) · Physician Assistant (48) · Nurse Practitioner (26) · Pathology (7) · Diagnostic Radiology (4) · Internal Medicine (3) · Colorectal Surgery (Proctology) (2) · General Surgery (1)
Specialty links go to the specialty in Philadelphia-Camden-Wilmington, PA-NJ-DE-MD.
Clinicians affiliated with Regional Gastroenterology Associates Of Lancaster, Ltd., 2024
Alphabetical by last name; 1–100 of 212.
| Name | Specialty | City |
|---|---|---|
| Nicole Adametz, PA-C | Physician Assistant | Uniontown, PA |
| Faiz Afridi | Gastroenterology | Newark, NJ |
| Nasir Akhtar | Internal Medicine | Doylestown, PA |
| Nicole E Albert, D.O. | Gastroenterology | Malvern, PA |
| Rajih A Alkhafaji, M.D. | Gastroenterology | Altoona, PA |
| Paul D Allegretti, D.O. | Gastroenterology | Lancaster, PA |
| John F Altomare, M.D. | Gastroenterology | Wyomissing, PA |
| Victor Araya, MD | Gastroenterology | Doylestown, PA |
| Mayukh Babu, MD | Diagnostic Radiology | Beachwood, OH |
| Matthew Baichi, MD | Gastroenterology | West Chester, PA |
| Robert J Bailey, D.O. | Gastroenterology | Altoona, PA |
| Jeffrey P Baliff, MD | Pathology | Philadelphia, PA |
| Nina S Bandyopadhyay, D.O. | Gastroenterology | Wyomissing, PA |
| Craig R Barash, M.D. | Gastroenterology | Langhorne, PA |
| Stuart S Barish, MD | Gastroenterology | Media, PA |
| Maura M Barr, DO | Gastroenterology | Malvern, PA |
| Vernon W Barrow, M.D. | Diagnostic Radiology | Tupelo, MS |
| Kira L Bellamy, CRNP | Nurse Practitioner | Washington, PA |
| Daniel T Bender, PA-C, MPA-S | Physician Assistant | Orbisonia, PA |
| Reina P Bender, MD | Gastroenterology | Westchester, PA |
| John D Betteridge, M.D. | Gastroenterology | Lancaster, PA |
| Daniel Blecker, M.D. | Gastroenterology | Wyomissing, PA |
| Edmond Bouassaf, M.D. | Gastroenterology | Altoona, PA |
| Crystal Boyer, PA-C | Physician Assistant | Pottstown, PA |
| Kristen A Brennan | Nurse Practitioner | Lansdale, PA |
| Kenneth S Breslin, M.D. | Gastroenterology | Yardley, PA |
| Ronald J Brzana, M.D. | Gastroenterology | Altoona, PA |
| Charlotte Budzik, CRNP | Nurse Practitioner | Washington, PA |
| Charles R Calabrese, DO | Gastroenterology | Uniontown, PA |
| Norman M Callahan, D.O. | Gastroenterology | Malvern, PA |
| Elizabeth C Camerino, PA-C | Physician Assistant | Reading, PA |
| Joshua P Cantor, M,D, | Pathology | Abington, PA |
| Matthew Chan, DO | Gastroenterology | Flourtown, PA |
| Joseph Chapman, DO | Gastroenterology | Lancaster, PA |
| Khushpreet Cheema, PA | Physician Assistant | Camp Hill, PA |
| Maggie Cheung, MD | Gastroenterology | Sellersville, PA |
| Raynard J Cheung, M.D. | Gastroenterology | Bala Cynwyd, PA |
| Kaci E Christian, M.D. | Gastroenterology | Lancaster, PA |
| Matthew S Cohen, M.D. | Gastroenterology | Philadelphia, PA |
| Julia Colangeli | Physician Assistant | Philadelphia, PA |
| Megan Colvin | Physician Assistant | Williamsport, PA |
| Daniel C Connell, MD | Gastroenterology | Lancaster, PA |
| Robert B Cooper, D.O. | Gastroenterology | Wyomissing, PA |
| Ashley A Davis, MD | Gastroenterology | Langhorne, PA |
| Ishita Dhawan, MD | Internal Medicine | Camden, NJ |
| Scott R Douglas, M.D. | Gastroenterology | Lancaster, PA |
| Julie L Eddy, FNP-C, DNP | Nurse Practitioner | Carlisle, PA |
| Philip Elbaum | Gastroenterology | Wyomissing, PA |
| Carolyn Evancho | Physician Assistant | Mechanicsburg, PA |
| Christopher J Evans, DO | General Surgery | York, PA |
| Christopher P Farrell, D.O. | Gastroenterology | Lancaster, PA |
| Scott A Fink, MD | Gastroenterology | Wynnewood, PA |
| Robert Frankel, M.D. | Gastroenterology | Malvern, PA |
| Kelly A Gast, PA-C | Physician Assistant | Lancaster, PA |
| Andrew Gemmell, PA-C | Physician Assistant | Lancaster, PA |
| Maysoun Ghabra, M.D. | Pathology | Pottstown, PA |
| Ravi K Ghanta, M.D. | Gastroenterology | Wyomissing, PA |
| Richard S Goldstein, M.D. | Colorectal Surgery (Proctology) | Langhorne, PA |
| Kevin C Gordon, M.D. | Gastroenterology | Wyomissing, PA |
| Denise B Gotsdiner, MD | Pathology | Abington, PA |
| Anastasia E Grebeck, PA-C | Physician Assistant | Fairfax, VA |
| Jeffrey R Greenspan, D.O. | Gastroenterology | Philadelphia, PA |
| Linda A Haffelfinger, PA-C | Physician Assistant | Lansdale, PA |
| Albert K Hahm, M.D. | Gastroenterology | West Chester, PA |
| Jill Hamburg, P.A. | Physician Assistant | Newark, DE |
| Burhan Hameed, MD | Gastroenterology | Pottstown, PA |
| Kelsey L Hamill, CRNP | Nurse Practitioner | Thorndale, PA |
| Marc R Happe, D.O. | Gastroenterology | Uniontown, PA |
| Justin J Harberson, M.D. | Gastroenterology | Lancaster, PA |
| Johann Hasbun, M.D. | Gastroenterology | Mount Laurel, NJ |
| Maribeth Hatalski, PA-C | Physician Assistant | Baltimore, MD |
| Stephen J Heller, M.D. | Gastroenterology | Philadelphia, PA |
| Joseph J Herdman, MD | Gastroenterology | Media, PA |
| Julie L Hinton, CRNP | Nurse Practitioner | Lancaster, PA |
| Gabrielle M Hocker, PA-C | Physician Assistant | Altoona, PA |
| Marc D Hopkins, MD | Gastroenterology | Biloxi, MS |
| Sarah E Horbach, PA-C | Physician Assistant | Wyomissing, PA |
| John D Horwhat, M.D. | Gastroenterology | Lancaster, PA |
| Jun S Hou, MD | Pathology | Philadelphia, PA |
| William B Huntington | Gastroenterology | Media, PA |
| Austin F Hwang, MD | Gastroenterology | Philadelphia, PA |
| Christopher B Ibrahim, M.D. | Gastroenterology | Wyomissing, PA |
| Melissa Jamison, PA-C | Physician Assistant | Uniontown, PA |
| Maura E Janoski, PA-C | Physician Assistant | Allentown, PA |
| Caylor A Johnson, CRNP | Nurse Practitioner | Narberth, PA |
| Lisa A Johnson, CRNP, DRNP | Nurse Practitioner | Pottstown, PA |
| Mark H Johnston, MD | Gastroenterology | Lancaster, PA |
| Philip Joson, MD | Gastroenterology | Washington, PA |
| Monique Junker, CRNP | Nurse Practitioner | Newtown Square, PA |
| Gaurav Kakked, MBBS | Gastroenterology | Chicago, IL |
| Radhakrishna R Kalakuntla, MD | Gastroenterology | Langhorne, PA |
| Brian J Karp, MD | Gastroenterology | Philadelphia, PA |
| Adam B Kaufman, MD | Gastroenterology | Malvern, PA |
| Erin B Keane, NP | Nurse Practitioner | Bensalem, PA |
| David L Kerstetter, M.D. | Gastroenterology | Altoona, PA |
| Elena Khlobystova, FNP-BC | Nurse Practitioner | Southampton, PA |
| Paul Y Kim, D.O. | Gastroenterology | Wyomissing, PA |
| William Kimmel, M.D. | Pathology | W. Reading, PA |
| James R Kline, PA-C | Physician Assistant | Wyomissing, PA |
| Michal Kloska | Gastroenterology | Pittsburgh, PA |
Practice locations
Listed practice locations in Pennsylvania.
Source: CMS Doctors and Clinicians National Downloadable File, snapshot October 2, 2026.
Membership comes from the CMS Doctors and Clinicians file. CMS does not publish an end-of-year archive of it, so the current snapshot is applied to every data year. A clinician affiliated with several groups or hospitals appears on each of their pages. How group pages are built · Limitations