NPPES file of Aug 9, 2026

Samuel John Ahrenholz, MD

Diagnostic Radiology Physician · Rochester, MN

Samuel John Ahrenholz, MD is a diagnostic radiology physician with a practice address in Rochester, Minnesota, and NPI 1275376535, issued on Jun 14, 2024. Check the license (Minnesota 80587, as entered in NPPES) on the Minnesota Board of Medical Practice; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1275376535
Name
Samuel John Ahrenholz
Credential
MD
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License number
80587 MN
Self-reported in NPPES; status is on the state search
Practice location
200 1St St SW, Rochester, MN 55905
Phone
(507) 284-2511
Enumerated
Jun 14, 2024
Record last updated
Aug 5, 2025
Medicare enrollment
Enrolled (PECOS I20250814000175); accepts Medicare assignment
Medical or professional school
University Of Iowa, Rj & L Carver College Of Medicine, 2024
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 200 1St St SW

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Timothy Aadland, M.D.Diagnostic Radiology Physician1780662783
  2. Christopher Aakre, MDInternal Medicine Physician1508151663
  3. Kathryn Aaro, P.T.Physical Therapist1619360666
  4. Danielle Aase, MDReproductive Endocrinology Physician1316524135
  5. Uzoamaka Abajue, PHARMDPharmacist1982335295
  6. Francisco Abarca Rendon, MDIndependent Medical Examiner Physician1790096246

Verify Samuel John Ahrenholz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMinnesota Board of Medical Practice
    Search for license 80587
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Minnesota license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Mayo ClinicRochester, MN

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

427 diagnostic radiology physician records list a practice address in Rochester

They are 427 of the 12,854 NPPES records with a practice address in Rochester, and 1,700 diagnostic radiology physician records in Minnesota.

Other diagnostic radiology physician records in Minnesota

  1. Timothy Aadland, M.D.Rochester, MN1780662783
  2. David Aamodt, MDRoseville, MN1578876496
  3. Mohamed Abdihalim, M.D.Roseville, MN1912141243
  4. Ellen Abeln, M.D.Roseville, MN1861441230
  5. Darcy Adamczyk, M.D.Rochester, MN1679559264
  6. Daniel Adamo, M.D.Rochester, MN1184967416
  7. Stephen Adams, D.O.Edina, MN1376689778
  8. Luul Aden, MDRochester, MN1558117770
  9. Shantosh Adhikari Sharma, M.D.Mankato, MN1689036337
  10. Mark Adkins, M.D.Rochester, MN1659359321

Common questions

What is Samuel John Ahrenholz, MD's NPI number?

Samuel John Ahrenholz, MD's National Provider Identifier (NPI) is 1275376535, issued on Jun 14, 2024. An NPI identifies a provider in billing; it is not a license.

Where is Samuel John Ahrenholz, MD located?

The NPPES record lists a practice address at 200 1St St SW, Rochester, MN, 55905. Phone: (507) 284-2511. Providers update this record themselves, so call before visiting.

How can I verify Samuel John Ahrenholz, MD's license?

NPPES lists Minnesota license number 80587, as entered by the provider. Search the Minnesota Board of Medical Practice at https://mn.gov/boards/medical-practice/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.