What is Mark Gundersen's specialty?

Mark Gundersen (NPI 1952390106) is a Medicare-billing provider whose primary specialty is Family Practice in Fergus Falls, MN.

Where does Mark Gundersen practice?

Mark Gundersen practices in Fergus Falls, MN, based on the location reported in the CMS Medicare provider datasets for NPI 1952390106.

How much does Medicare pay Mark Gundersen?

Mark Gundersen (NPI 1952390106) received approximately $45K in total Medicare Part B payments, serving 228 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1952390106

Mark GundersenMD

Family PracticeFergus Falls, MNI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,229

Unique beneficiaries

—

Total services

1,987

Distinct HCPCS

Medicare payment

$21K

Peer benchmark

Total Medicare services vs. 2,349 Family Practice providers in MN — top quintile (cohort median 523).

PRESCRIBING · PART D · 2024

Total Rx claims

6,748

Beneficiaries

—

Total drug cost

$276K

Distinct drugs

120

Brand share

13.8%

Top prescribed drugs

Levothyroxine Sodium346 claims

Atorvastatin Calcium312 claims

Lisinopril257 claims

Metformin Hcl257 claims

Omeprazole244 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Mark Gundersen's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 24 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
LAKE REGION HEALTHCARE CORPORATION	576	4,046
VENNERSTROM, ROBERT	29	119
Kamran Khaghany Diagnostic Radiology · Fargo, ND	29	83
Joellen Kohlman-Petrick Cardiology · Fergus Falls, MN	27	126
BERGER, LONNIE	24	83
MCGAUGHEY, SANDRA	23	92
Vali Orandi Diagnostic Radiology · Eden Prairie, MN	22	98
NPI 1023020484	17	50
Erin Peterson Internal Medicine · Fergus Falls, MN	17	63
Patricia Lindholm Family Practice · Fergus Falls, MN	17	79
Amy Falck Nurse Practitioner · Wahpeton, ND	17	64
Steven Thom Ophthalmology · Fergus Falls, MN	15	47

Refers patients to

Outbound — where patients go next

No outbound pairs above the suppression threshold.

Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history

Healthparse Signals

Monitor this provider for changes — dated NPI change events