Internal Medicine in Mason City, IA
76 active Internal Medicine providers practice in Mason City, Iowa according to the latest NPPES snapshot. Profiles include the NPI number, taxonomy code, license state, and practice address.
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| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1093339871 | Adam Hoffmann | Individual | Internal Medicine Physician | Mason City, IA |
| 1619905353 | Ali Mardan | Individual | Internal Medicine Physician | Mason City, IA |
| 1841307477 | Amy Tesar | Individual | Internal Medicine Physician | Mason City, IA |
| 1922077841 | Bibi Khoyratty | Individual | Medical Oncology Physician | Mason City, IA |
| 1336256593 | Bruce Harlan | Individual | Internal Medicine Physician | Mason City, IA |
| 1013134469 | Burt Humburg | Individual | Internal Medicine Physician | Mason City, IA |
| 1053398180 | Byron Beasley | Individual | Cardiovascular Disease Physician | Mason City, IA |
| 1568579720 | Daniel Pennington | Individual | Internal Medicine Physician | Mason City, IA |
| 1710068432 | David Popp | Individual | Internal Medicine Physician | Mason City, IA |
| 1386219053 | Dejan Spaseski | Individual | Internal Medicine Physician | Mason City, IA |
| 1861703910 | Denisa Hagau | Individual | Cardiovascular Disease Physician | Mason City, IA |
| 1932770740 | Dominick Myers | Individual | Internal Medicine Physician | Mason City, IA |
| 1518120633 | Douglas Summerfield | Individual | Critical Care Medicine (Internal Medicine) Physician | Mason City, IA |
| 1831659986 | Etee Patel | Individual | Internal Medicine Physician | Mason City, IA |
| 1366797755 | Fayez Siddiqui | Individual | Interventional Cardiology Physician | Mason City, IA |
| 1083174429 | Fnu Dayawa Da Agoons | Individual | Internal Medicine Physician | Mason City, IA |
| 1659488682 | Gary Levinson | Individual | Pulmonary Disease Physician | Mason City, IA |
| 1427214170 | Harpreet Kaur | Individual | Endocrinology, Diabetes & Metabolism Physician | Mason City, IA |
| 1154818953 | Hersi Moallin | Individual | Internal Medicine Physician | Mason City, IA |
| 1821577875 | Hospitalist Medicine Physicians of Iowa - Mason City, Pllc | Organization | Internal Medicine Physician | Mason City, IA |
| 1366430530 | J.D. Thoreson | Individual | Internal Medicine Physician | Mason City, IA |
| 1689298473 | Jacob Obholz | Individual | Internal Medicine Physician | Mason City, IA |
| 1871589838 | James Reeder | Individual | Interventional Cardiology Physician | Mason City, IA |
| 1295723468 | James Tatkon-Coker | Individual | Cardiovascular Disease Physician | Mason City, IA |
| 1992809636 | Janice Kirsch | Individual | Internal Medicine Physician | Mason City, IA |
| 1447866579 | Jashan Gill | Individual | Internal Medicine Physician | Mason City, IA |
| 1790179331 | John Pflugi | Individual | Internal Medicine Physician | Mason City, IA |
| 1548943509 | Jose Morales Oliva | Individual | Internal Medicine Physician | Mason City, IA |
| 1871113233 | Kaushik Darbha | Individual | Cardiovascular Disease Physician | Mason City, IA |
| 1679926901 | Khaled Nada | Individual | Pulmonary Disease Physician | Mason City, IA |
| 1609981364 | Louise Cragg | Individual | Medical Oncology Physician | Mason City, IA |
| 1457092165 | Luke Carlson | Individual | Internal Medicine Physician | Mason City, IA |
| 1982048286 | Mark Hong | Individual | Nephrology Physician | Mason City, IA |
| 1013923127 | Mark Johnson | Individual | Internal Medicine Physician | Mason City, IA |
| 1548408867 | Matthew Hardee | Individual | Internal Medicine Physician | Mason City, IA |
| 1235660259 | Medi-Dent, Inc | Organization | Sleep Medicine (Internal Medicine) Physician | Mason City, IA |
| 1881796712 | Melissa Frame | Individual | Internal Medicine Physician | Mason City, IA |
| 1336128354 | Michael Giudici | Individual | Clinical Cardiac Electrophysiology Physician | Mason City, IA |
| 1154319358 | Michael Sarik | Individual | Clinical Cardiac Electrophysiology Physician | Mason City, IA |
| 1225018013 | Michael Spooner | Individual | Cardiovascular Disease Physician | Mason City, IA |
| 1316512197 | Muhammad Tahir | Individual | Internal Medicine Physician | Mason City, IA |
| 1780848838 | Natalia Ferrari Gabilondo | Individual | Medical Oncology Physician | Mason City, IA |
| 1659574630 | Neena Singh | Individual | Internal Medicine Physician | Mason City, IA |
| 1639069099 | Nithin Karnan | Individual | Internal Medicine Physician | Mason City, IA |
| 1972096147 | Noor Subah | Individual | Cardiovascular Disease Physician | Mason City, IA |
| 1609806371 | North Iowa Mercy Clinics | Organization | Internal Medicine Physician | Mason City, IA |
| 1972610376 | North Iowa Mercy Clinics | Organization | Medical Oncology Physician | Mason City, IA |
| 1306018122 | North Iowa Mercy Clinics | Organization | Cardiovascular Disease Physician | Mason City, IA |
| 1922274653 | North Iowa Mercy Clinics | Organization | Endocrinology, Diabetes & Metabolism Physician | Mason City, IA |
| 1003082736 | North Iowa Mercy Clinics | Organization | Nephrology Physician | Mason City, IA |
Frequently asked questions
How many Internal Medicine providers are in Mason City, IA?
The latest NPPES snapshot lists 76 active Internal Medicine providers with a practice address in Mason City, Iowa.
How do I check a Internal Medicine provider's NPI in Mason City?
Open a profile below to see the NPI number, taxonomy code, and practice address, then verify against the official NPPES registry — every profile links directly to the CMS record.
Source: CMS NPPES (public data). Snapshot 2026-07-11.