Clinicians affiliated with Gastroenterology Associates LLP
30 clinicians on file with this group · most practice in Buffalo-Cheektowaga, NY · PAC ID 8820048085
26 clinicians affiliated with Gastroenterology Associates LLP are in the 2024 Medicare Part B data, 16 of them physicians. Data years with affiliated clinicians: 2013, 2014, 2015, 2016, 2017, 2018, 2019, 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 (16) · Nurse Practitioner (5) · Physician Assistant (5)
Specialty links go to the specialty in Buffalo-Cheektowaga, NY.
Clinicians affiliated with Gastroenterology Associates LLP, 2024
Alphabetical by last name; 26.
| Name | Specialty | City |
|---|---|---|
| Holly S Bailey, NP | Nurse Practitioner | Buffalo, NY |
| Christopher J Bartolone, M.D. | Gastroenterology | Williamsville, NY |
| Mallory Bischel, FNP | Nurse Practitioner | Buffalo, NY |
| Peter D Bloom, M.D. | Gastroenterology | Williamsville, NY |
| Mary J Ciechoski, ANP | Nurse Practitioner | Buffalo, NY |
| Carrin M Clifford, FNP-BC | Nurse Practitioner | Williamsville, NY |
| Courtney E Dunn, PA | Physician Assistant | Lockport, NY |
| Alexandria C Galluzzi, PA-C | Physician Assistant | Williamsville, NY |
| David S Garson, M.D. | Gastroenterology | Williamsville, NY |
| Elizabeth Z Gregory | Gastroenterology | Buffalo, NY |
| Emilee Harvey, PA | Physician Assistant | Buffalo, NY |
| Pamela A Hennesen, PA | Physician Assistant | Williamsville, NY |
| Cory Higley, DO, MPH | Gastroenterology | Buffalo, NY |
| Craig E Keller, M.D. | Gastroenterology | Williamsville, NY |
| Ann F Lillis, ANP | Nurse Practitioner | Williamsville, NY |
| Yogesh Maheshwari, M.D. | Gastroenterology | Williamsville, NY |
| Thomas Malikowski, M.D. | Gastroenterology | Williamsville, NY |
| Shahid Mehboob, MD | Gastroenterology | Williamsville, NY |
| Naima Mian, D.O. | Gastroenterology | Williamsville, NY |
| Natalie C Penn, MD | Gastroenterology | Williamsville, NY |
| John D Picano, M.D. | Gastroenterology | Williamsville, NY |
| Stanley J Pietrak, M.D. | Gastroenterology | Williamsville, NY |
| Ognian A Pomakov, MD | Gastroenterology | Williamsville, NY |
| Abigail Posner, PA | Physician Assistant | Williamsville, NY |
| Benjamin J Schaus, D.O. | Gastroenterology | Williamsville, NY |
| Siddhartha S Shah, M.D. | Gastroenterology | Williamsville, NY |
Practice locations
Listed practice locations in New York.
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