Internal Medicine in Yankton, SD
27 active Internal Medicine providers practice in Yankton, South Dakota 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 |
|---|---|---|---|---|
| 1114319316 | Amanda Sedlacek | Individual | Internal Medicine Physician | Yankton, SD |
| 1629079512 | Beth Mikkelsen | Individual | Internal Medicine Physician | Yankton, SD |
| 1316157928 | Byron Nielsen | Individual | Nephrology Physician | Yankton, SD |
| 1770758757 | Clarissa Barnes | Individual | Internal Medicine Physician | Yankton, SD |
| 1083615975 | Daniel Megard | Individual | Internal Medicine Physician | Yankton, SD |
| 1306989090 | Gregory Erickson | Individual | Internal Medicine Physician | Yankton, SD |
| 1700887627 | Jay Hubner | Individual | Internal Medicine Physician | Yankton, SD |
| 1760696967 | Jennifer Fillaus | Individual | Internal Medicine Physician | Yankton, SD |
| 1669473443 | John Frank | Individual | Internal Medicine Physician | Yankton, SD |
| 1922599612 | Kesiena Akpoigbe | Individual | Gastroenterology Physician | Yankton, SD |
| 1871784124 | Leann Bassing | Individual | Rheumatology Physician | Yankton, SD |
| 1235130030 | Lori Hansen | Individual | Pulmonary Disease Physician | Yankton, SD |
| 1447601141 | Martha Holstein | Individual | Internal Medicine Physician | Yankton, SD |
| 1699857821 | Mary Lee Villanueva | Individual | Hematology & Oncology Physician | Yankton, SD |
| 1548261548 | Max Farver | Individual | Hematology & Oncology Physician | Yankton, SD |
| 1346241148 | Michael Hein | Individual | Internal Medicine Physician | Yankton, SD |
| 1740254986 | Michael Pietila | Individual | Pulmonary Disease Physician | Yankton, SD |
| 1912562752 | Sacred Heart Health Services | Organization | Internal Medicine Physician | Yankton, SD |
| 1740019124 | Sacred Heart Health Services | Organization | Gastroenterology Physician | Yankton, SD |
| 1619173945 | Scott Helberg | Individual | Pulmonary Disease Physician | Yankton, SD |
| 1619506896 | Sherlon Sinclair | Individual | Internal Medicine Physician | Yankton, SD |
| 1295736205 | Steve Gutnik | Individual | Gastroenterology Physician | Yankton, SD |
| 1326049313 | Susan Fanta | Individual | Internal Medicine Physician | Yankton, SD |
| 1063622801 | Timothy Irwin | Individual | Cardiovascular Disease Physician | Yankton, SD |
| 1700800885 | Tyler Hanson | Individual | Internal Medicine Physician | Yankton, SD |
| 1720565831 | Venkata Siva Kumar Pajjuru | Individual | Cardiovascular Disease Physician | Yankton, SD |
| 1447251350 | Yankton Medical Clinic PC | Organization | Internal Medicine Physician | Yankton, SD |
Frequently asked questions
How many Internal Medicine providers are in Yankton, SD?
The latest NPPES snapshot lists 27 active Internal Medicine providers with a practice address in Yankton, South Dakota.
How do I check a Internal Medicine provider's NPI in Yankton?
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 2026-07-10.