Mark Gundersen, MD
NPI 1952390106 · Family Medicine Physician · Fergus Falls, MN
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Gundersen, MD is a Family Medicine Physician provider in Fergus Falls, MN (NPI 1952390106).
Provider details
- NPI number
- 1952390106
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 4301069187 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,987 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 492 | $9 |
| Blood Test, Clotting Time85610 | 322 | $4 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 177 | $10 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 168 | $13 |
| Blood Test, Basic Group of Blood Chemicals (calcium, Total)80048 | 117 | $8 |
| Hemoglobin A1c Level83036 | 102 | $9 |
| Urine Microalbumin (protein) Level |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 128 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 346 | 80 |
| Atorvastatin Calcium | 312 | 68 |
| Metformin Hcl | 257 | 52 |
| Lisinopril | 257 | 52 |
| Omeprazole | 244 | 50 |
| Simvastatin | 236 | 55 |
| Amlodipine Besylate | 218 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-10-20
- Last updated
- 2019-10-29
Frequently asked questions
- What is Mark Gundersen's NPI number?
- Mark Gundersen's National Provider Identifier (NPI) is 1952390106, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Gundersen's specialty?
- Mark Gundersen is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Gundersen located?
- Mark Gundersen's practice location on file with NPPES is 712 South Cascade Street, Fergus Falls, MN 56537-2813.
- What is Mark Gundersen's phone number?
- The practice phone number listed in the NPPES registry for Mark Gundersen is (218) 736-8000.
- Does Mark Gundersen accept Medicare?
- Mark Gundersen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Gundersen's NPI active?
- Yes — Mark Gundersen's NPI (1952390106) is active in the NPPES registry as of the last update on 2019-10-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.