Internal Medicine Physician in Clackamas, OR

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026-05-20.

104 providers

The CMS National Plan and Provider Enumeration System currently lists 104 Internal Medicine Physician providers with a primary practice address in Clackamas, OR, all registered under the Internal Medicine NUCC taxonomy branch. Each clinician on this roster selected Internal Medicine Physician as their primary taxonomy at NPI enrollment, a self-reported classification updated whenever the provider files a correction with CMS. Every figure is drawn from the federal National Provider Identifier Registry (CMS NPPES); see our methodology.

Before contacting anyone on this list, verify the practice is still at the address shown. NPPES refreshes monthly, but providers who have relocated, retired, or changed employers may not have filed an NPI update yet. Important: PlainDoctor is a directory of publicly available CMS government data, not a quality ranking, a board-certification verifier, or medical advice. Always confirm credentials through the NPPES NPI Registry before making any clinical decision.

Samer Abufadil, MD
Internal Medicine Physician
Clackamas, OR 97015
(503) 652-2880
Usman Ahmad, D.O.
Internal Medicine Physician
Clackamas, OR 97015
(503) 813-2000
Tatyana Aleksandrova, MD
Internal Medicine Physician
Clackamas, OR 97015
(503) 221-8000
Lisa Ashcraft, MD
Internal Medicine Physician
Clackamas, OR 97015
(503) 652-2880
Kirthika Balakrishnan, MD
Internal Medicine Physician
Clackamas, OR 97015
(503) 652-2880
Vijayalakshmi Bandari, MD
Internal Medicine Physician
Clackamas, OR 97015
(503) 652-2886
Sarah Barr, M.D.
Internal Medicine Physician
Clackamas, OR 97015
(503) 652-2880
Patra Behary, M.D.
Internal Medicine Physician
Clackamas, OR 97015
(503) 652-2880
Mary Bodie, M.D.
Internal Medicine Physician
Clackamas, OR 97015
(503) 652-2880
Eric Bonura, MD
Internal Medicine Physician
Clackamas, OR 97015
(503) 652-2880
Sarra Borhanian, MD
Internal Medicine Physician
Clackamas, OR 97015
(503) 813-2000
Rachel Brenner, M.D.
Internal Medicine Physician
Clackamas, OR 97015
(800) 735-2900
Leora Britvan, M.D.
Internal Medicine Physician
Clackamas, OR 97015
(503) 813-2025
Emily Cedarbaum, M.D.
Internal Medicine Physician
Clackamas, OR 97015
(503) 813-2000
Stephanie Cha, MD
Internal Medicine Physician
Clackamas, OR 97015
(503) 215-2110
Frank Chen, M.D.
Internal Medicine Physician
Clackamas, OR 97015
(503) 652-2880
Janice Cho
Internal Medicine Physician
Clackamas, OR 97015
(507) 284-2511
Christine Choo, MD
Internal Medicine Physician
Clackamas, OR 97015
(503) 652-2880
Jane Chung, MD
Internal Medicine Physician
Clackamas, OR 97015
(503) 571-8049
Christopher Clements, MD
Internal Medicine Physician
Clackamas, OR 97015
(503) 652-2880
Milton Cohen, M.D.
Internal Medicine Physician
Clackamas, OR 97015
(503) 653-6440
Alla Comardelle, M.D.
Internal Medicine Physician
Clackamas, OR 97015
(503) 652-2880
Ethan Corcoran, M.D., PH.D.
Internal Medicine Physician
Clackamas, OR 97015
(503) 571-2727
Maxine Dexter, MD
Internal Medicine Physician
Clackamas, OR 97015
(503) 571-8318
Martin Donohoe, M.D.
Internal Medicine Physician
Clackamas, OR 97015
(503) 652-2880
Valerie Downey, M.D.
Internal Medicine Physician
Clackamas, OR 97015
(503) 652-2880
Peggy Eurman, M.D.
Internal Medicine Physician
Clackamas, OR 97015
(503) 653-6440
Andrew Felcher, M.D.
Internal Medicine Physician
Clackamas, OR 97015
(503) 652-2880
George Feldman, M.D.
Internal Medicine Physician
Clackamas, OR 97015
(503) 652-2880
Michael Ferrell, M.D.
Internal Medicine Physician
Clackamas, OR 97015
(503) 653-2880
Joshua Filner, MD MPH
Internal Medicine Physician
Clackamas, OR 97015
(503) 571-8713
Elizabeth Frederick-Ragsdale, MD
Internal Medicine Physician
Clackamas, OR 97015
(503) 652-2880
Gregory Garcia, MD
Internal Medicine Physician
Clackamas, OR 97015
(503) 215-2110
Jennifer Garnand, M.D.
Internal Medicine Physician
Clackamas, OR 97015
(503) 652-2880
Walter George, MD
Internal Medicine Physician
Clackamas, OR 97015
(503) 216-7960
Ella Gillespie, MD
Internal Medicine Physician
Clackamas, OR 97015
(800) 813-2000
Catherine Gisi, MD
Internal Medicine Physician
Clackamas, OR 97015
(800) 813-2000
Zoe Gombart, MD
Internal Medicine Physician
Clackamas, OR 97015
(503) 813-2000
Randall Gore, M.D.
Internal Medicine Physician
Clackamas, OR 97015
(503) 215-2110
Siobhan Gray, M.D.
Internal Medicine Physician
Clackamas, OR 97015
(503) 652-2880
Michael Hayes, M.D.
Internal Medicine Physician
Clackamas, OR 97015
(503) 813-2000
Aaron Ho
Internal Medicine Physician
Clackamas, OR 97015
(800) 813-2000
Joshua Hollabaugh, MD
Internal Medicine Physician
Clackamas, OR 97015
(971) 710-8240
Louis Holmes
Internal Medicine Physician
Clackamas, OR 97015
(503) 652-2880
Gene Hong, M.D.
Internal Medicine Physician
Clackamas, OR 97015
(503) 657-3329
Marissa Huebner, MD
Internal Medicine Physician
Clackamas, OR 97015
(503) 813-2000
Valerie Ing, DO
Internal Medicine Physician
Clackamas, OR 97015
(503) 233-5548
Magdalena Kasprowska, M.D.
Internal Medicine Physician
Clackamas, OR 97015
(503) 215-2110
Ronda Keller
Internal Medicine Physician
Clackamas, OR 97015
(503) 813-4756
Muhammad Khaliq, M.D.
Internal Medicine Physician
Clackamas, OR 97015
(800) 813-2000

Showing the first 50 of 104 providers. Browse the full Internal Medicine Physician directory for OR.

Provider data from CMS NPPES (download.cms.gov/nppes). Specialty classification from NUCC Health Care Provider Taxonomy (nucc.org). PlainDoctor does not rate or rank providers. Methodology ยท About