Erik A. Gundersen, MD
Family Medicine Physician · La Crosse, WI
Erik A. Gundersen, MD is a family medicine physician with a practice address in La Crosse, Wisconsin, and NPI 1770588360, issued on Jun 20, 2005. Check the license (Wisconsin 36937, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Erik A. Gundersen
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 36937 WI
Self-reported in NPPES; status is on the state search - Practice location
- 1836 South Ave, La Crosse, WI 54601
- Phone
- (608) 782-7300
- Enumerated
- Jun 20, 2005
- Record last updated
- May 8, 2015 (not updated in 11 years: call before relying on the address or phone)
- Medicaid ID
- 32467600 WI
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,765 in Wisconsin → Look up another NPI →
Also registered at 1836 South Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Erik A. Gundersen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 36937Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average family medicine physician in 2024
28 Medicare Part D claims, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
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.
Industry payments in 2024: $13.16
1 payment: food and beverage; the largest payer was Boehringer Ingelheim Pharmaceuticals, Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Erik A. Gundersen among 3,765 family medicine physician records in Wisconsin
Erik A. Gundersen, MD is one of 3,765 family medicine physician records with a practice address in Wisconsin. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 90% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2015 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
115 family medicine physician records list a practice address in La Crosse
They are 115 of the 3,735 NPPES records with a practice address in La Crosse, and 3,765 family medicine physician records in Wisconsin.
All 3,765 in Wisconsin → Every provider in La Crosse → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Karl Borge, MDLa Crosse, WI 546011831193507
- Robyn Borge, MDLa Crosse, WI 546011528062296
- Craig Carr, MDLa Crosse, WI 546011780689190
- Karen Cowan, MDLa Crosse, WI 546011417951856
- Scott Escher, MDLa Crosse, WI 546011700881877
- Thomas Frisby, MDLa Crosse, WI 546011417952359
- Cheng Her, MDLa Crosse, WI 546011356346803
- James Hoefert, MDLa Crosse, WI 546011417953506
Common questions
What is Erik A. Gundersen, MD's NPI number?
Erik A. Gundersen, MD's National Provider Identifier (NPI) is 1770588360, issued on Jun 20, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Erik A. Gundersen, MD located?
The NPPES record lists a practice address at 1836 South Ave, La Crosse, WI, 54601. Phone: (608) 782-7300. Providers update this record themselves, so call before visiting.
How can I verify Erik A. Gundersen, MD's license?
NPPES lists Wisconsin license number 36937, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Erik A. Gundersen, MD prescribe under Medicare Part D?
In 2024, Erik A. Gundersen, MD had 28 Medicare Part D claims; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
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.