NPPES file of Aug 9, 2026

Mason Gordon Fisher, M.D.

Surgical Critical Care Physician · La Crosse, WI

Mason Gordon Fisher, M.D. is a surgical critical care physician with a practice address in La Crosse, Wisconsin, and NPI 1245452549, issued on May 3, 2007. Check the license (Wisconsin 55044, 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
1245452549
Name
Mason Gordon Fisher
Credential
M.D.
Primary taxonomy
Surgical Critical Care Physician 2086S0102X
License number
55044 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
May 3, 2007
Record last updated
Mar 26, 2026
Medicaid ID
1245452549 WI
Medicare enrollment
Enrolled (PECOS I20110630000463); accepts Medicare assignment
Medical or professional school
Ohio State University College Of Medicine, 2003
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 Mason Gordon Fisher in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 55044
    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

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78% fewer Medicare Part D claims than the average surgical critical care physician in 2024

14 Medicare Part D claims, against an average of 64 among the 606 providers of this specialty who prescribed in Part D.

  1. Mason Fisher14
  2. Specialty average64

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 IncLa Crosse, WI

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

Mason Gordon Fisher among 14 surgical critical care physician records in Wisconsin

Mason Gordon Fisher, M.D. is one of 14 surgical critical care physician records with a practice address in Wisconsin. 93% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 36% of them.

  • NPI issued2007 · 36% of these records are older, 57% newer
  • In a Medicare fileYes · 93% of these records are
  • In the CMS Doctors and Clinicians fileYes · 93% of these records are
  • Graduated2003 · median 2008 among the 13 with a school on file
  • Record last updated2026 · 29% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086S0102X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Surgical Critical Care Physician providers in Wisconsin

There are 14 surgical critical care physician records in Wisconsin.

The 8 surgical critical care physician records with the nearest ZIP codes

  1. Robert Benjamin, M.D.La Crosse, WI 546011992763395
  2. Panna Codner, MDLa Crosse, WI 546011356410898
  3. Nolan Rudder, D.O.La Crosse, WI 546011356704290
  4. Christine Waller, M.D.La Crosse, WI 546011588826705
  5. John Galbraith, M.D.Marshfield, WI 544491467748210
  6. Stephanie Bakey, D.O.Green Bay, WI 543011205152824
  7. Carol Schermer, MDOshkosh, WI 549041114952520
  8. Scott Turner, MDMadison, WI 537921447519665

Common questions

What is Mason Gordon Fisher, M.D.'s NPI number?

Mason Gordon Fisher, M.D.'s National Provider Identifier (NPI) is 1245452549, issued on May 3, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Mason Gordon Fisher, M.D. 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 Mason Gordon Fisher, M.D.'s license?

NPPES lists Wisconsin license number 55044, 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 Mason Gordon Fisher, M.D. prescribe under Medicare Part D?

In 2024, Mason Gordon Fisher, M.D. had 14 Medicare Part D claims; the average among surgical critical care physician prescribers was 64. 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.