Registry data as of Aug 27, 2026

Mark Gundersen, MD

Family Medicine Physician · Fergus Falls, MN

Mark Gundersen, MD is a family medicine physician with a practice address in Fergus Falls, Minnesota, and NPI 1952390106, issued on Oct 20, 2005. Check the license on the Minnesota Board of Medical Practice; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1952390106
Name
Mark Gundersen
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
Practice location
712 South Cascade Street, Fergus Falls, MN 56537
Phone
(218) 736-8000
Enumerated
Oct 20, 2005
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 712 South Cascade Street

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

  1. Stephen Asp, MDOtolaryngology Physician1841235140
  2. David Bjork, M.D.Internal Medicine Physician1366470601
  3. Wesley Borowski, MDFamily Medicine Physician1841210259
  4. Marie Braaten, NPGerontology Nurse Practitioner1134149552
  5. Lawrence Eisinger, MDPediatrics Physician1124049564
  6. David Ellison, MDEmergency Medicine Physician1366420242

Verify Mark Gundersen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMinnesota Board of Medical PracticeCheck 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.

2.1 times the Medicare Part D claims of the average family medicine physician in 2024

7,276 Medicare Part D claims for 384 beneficiaries, against an average of 3,519 among the 111,126 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 163 claims were for opioids.

  1. Mark Gundersen7,276
  2. Specialty average3,519

Most prescribed

  1. Levothyroxine Sodium346 claims
  2. Atorvastatin Calcium312 claims
  3. Lisinopril257 claims
  4. Metformin Hcl257 claims
  5. Omeprazole244 claims
  6. Simvastatin236 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

2 hospital and facility affiliations

  1. Avera MckennanWorthington, MN
  2. Rural Health Care IncWorthington, MN

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

18 family medicine physician records list a Fergus Falls practice address

They are 18 of the 656 NPPES records with a Fergus Falls practice address, and 3,876 family medicine physician records in Minnesota.

Other family medicine physician records in Minnesota

  1. Allison AaseMinneapolis, MN1255028239
  2. Lise Aasheim, M.D.Albert Lea, MN1871571851
  3. Cherry Abary, D.O.Eden Prairie, MN1821019712
  4. Jihan Abbott, D.O.Woodbury, MN1306138870
  5. Mona Abdel-Bary, MBBCHFridley, MN1689067860
  6. Yasmin Abdulaya, MDSaint Cloud, MN1437892536
  7. Bangean Abdullah, MDCoon Rapids, MN1952363137
  8. Melika AbdulwhabMinnetonka, MN1538662515
  9. Ryan Aberle, MDRobbinsdale, MN1639732928
  10. Gregory Abler, MDMorris, MN1609889740

Common questions

What is Mark Gundersen, MD's NPI number?

Mark Gundersen, MD's National Provider Identifier (NPI) is 1952390106, issued on Oct 20, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Mark Gundersen, MD located?

The NPPES record lists a practice address at 712 South Cascade Street, Fergus Falls, MN, 56537. Phone: (218) 736-8000. Providers update this record themselves, so call before visiting.

How can I verify Mark Gundersen, MD's license?

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.

How much does Mark Gundersen, MD prescribe under Medicare Part D?

In 2024, Mark Gundersen, MD had 7,276 Medicare Part D claims for 384 beneficiaries; the average among family medicine physician prescribers was 3,519. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

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 Aug 27, 2026.