NPPES file of Aug 9, 2026

Gregory G. Fischer, MD

Neurology Physician · La Crosse, WI

Gregory G. Fischer, MD is a neurology physician with a practice address in La Crosse, Wisconsin, and NPI 1295730190, issued on Jun 16, 2005. Check the license (Wisconsin 25252, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1295730190
Name
Gregory G. Fischer
Credential
MD
Primary taxonomy
Neurology Physician 2084N0400X
License number
25252 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 16, 2005
Record last updated
Apr 29, 2015 (not updated in 11 years: call before relying on the address or phone)
Medicaid ID
30545700 WI
Medicare enrollment
Enrolled (PECOS I20101007001030); accepts Medicare assignment
Medical or professional school
University Of Minnesota Medical School, 1979
Telehealth
Offers telehealth (CMS)
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 1836 South Ave

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

  1. Frank Aberger, MDGastroenterology Physician1396748711
  2. Bradley Abicht, DPMPodiatrist1962632166
  3. Carter Abicht, DOAnesthesiology Physician1932736642
  4. Grace AbichtCertified Registered Nurse Anesthetist1003651555
  5. Paul Abicht, CRNACertified Registered Nurse Anesthetist1528061843
  6. Mateen Abidi, M.DCardiovascular Disease Physician1730333980

Verify Gregory G. Fischer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 25252
    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 Wisconsin 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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97% fewer Medicare Part D claims than the average neurology physician in 2024

35 Medicare Part D claims for 11 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Gregory Fischer35
  2. Specialty average1,370

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.

Bills Medicare through one group practice

  1. Gundersen Lutheran Medical Center IncWinona, MN

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

Gregory G. Fischer among 399 neurology physician records in Wisconsin

Gregory G. Fischer, MD is one of 399 neurology physician records with a practice address in Wisconsin. 77% 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, 96% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated1979 · median 2005 among the 274 with a school on file
  • Record last updated2015 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neurology Physician providers in Wisconsin

There are 399 neurology physician records in Wisconsin.

The 8 neurology physician records with the nearest ZIP codes

  1. James Bounds, MDLa Crosse, WI 546011831162346
  2. Pat Bryant, MDLa Crosse, WI 546011922029339
  3. Piyush Das, MBBSLa Crosse, WI 546011265639140
  4. Mary Goodsett, MDLa Crosse, WI 546011053316778
  5. Richard Hutter, MDLa Crosse, WI 546011588660013
  6. Ragasri Kumar Merkes, D.O.La Crosse, WI 546011699930594
  7. Michael Leone, M.D.La Crosse, WI 546011275794109
  8. Lorri Lobeck, M.D.La Crosse, WI 546011437189602

Common questions

What is Gregory G. Fischer, MD's NPI number?

Gregory G. Fischer, MD's National Provider Identifier (NPI) is 1295730190, issued on Jun 16, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Gregory G. Fischer, 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 Gregory G. Fischer, MD's license?

NPPES lists Wisconsin license number 25252, 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 Gregory G. Fischer, MD prescribe under Medicare Part D?

In 2024, Gregory G. Fischer, MD had 35 Medicare Part D claims for 11 beneficiaries; the average among neurology physician prescribers was 1,370. 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.