NPPES file of Aug 9, 2026

Robert N. Fish, M.D.

Anesthesiology Physician · Grafton, WI

Robert N. Fish, M.D. is an anesthesiology physician with a practice address in Grafton, Wisconsin, and NPI 1942292610, issued on Aug 18, 2005. Check the license (Wisconsin 55659-020, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1942292610
Name
Robert N. Fish
Credential
M.D.
Primary taxonomy
Anesthesiology Physician 207L00000X
License numbers
55659-020 WI
2010-00086 NC
Self-reported in NPPES; status is on the state search
Practice location
975 Port Washington RD, Grafton, WI 53024
Phone
(262) 329-1000
Enumerated
Aug 18, 2005
Record last updated
Nov 18, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(262) 329-1001
Medicaid ID
1942292610 WI
Medicare enrollment
Enrolled (PECOS I20110715000212); accepts Medicare assignment
Medical or professional school
University Of Utah School Of Medicine, 2002
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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8 nearest anesthesiology physician records → All 1,313 in Wisconsin → Look up another NPI →

Also registered at 975 Port Washington RD

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

  1. Hamid Afsari, D.O.Hospitalist Physician1053672048
  2. Muhammed Al-Fawakhiri, MDInternal Medicine Physician1942276613
  3. Beverly Altman, LMTMassage Therapist1447888789
  4. Claudia Altmann, MDInfectious Disease Physician1386691756
  5. Peter Andrew, AAAnesthesiologist Assistant1821704545
  6. Patrick AndrewsPhysical Therapist1689481962

Verify Robert N. Fish in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 55659-020    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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Bills Medicare through one group practice

  1. Aurora Medical Group, Inc.Grafton, WI

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

Robert N. Fish among 1,313 anesthesiology physician records in Wisconsin

Robert N. Fish, M.D. is one of 1,313 anesthesiology physician records with a practice address in Wisconsin. 72% 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, 80% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2002 · median 2006 among the 872 with a school on file
  • Record last updated2021 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

21 anesthesiology physician records list a practice address in Grafton

They are 21 of the 459 NPPES records with a practice address in Grafton, and 1,313 anesthesiology physician records in Wisconsin.

All 1,313 in Wisconsin → Every provider in Grafton → Anesthesiology Physician nationwide →

The 8 anesthesiology physician records with the nearest ZIP codes

  1. Gena DermodyGrafton, WI 530241609141761
  2. Michael Hensien, MDGrafton, WI 530241346294956
  3. Igor Levin, M.D.Grafton, WI 530241376527895
  4. Andrew Nicoli, D.O.Grafton, WI 530241124280052
  5. Jennifer Niedfeldt, MDGrafton, WI 530241215943451
  6. Richard Paulsen, M.D.Grafton, WI 530241588735435
  7. Ali Sadeghi, M.D.Grafton, WI 530241114901345
  8. Robert Schlosser, MDGrafton, WI 530241124071501

Common questions

What is Robert N. Fish, M.D.'s NPI number?

Robert N. Fish, M.D.'s National Provider Identifier (NPI) is 1942292610, issued on Aug 18, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Robert N. Fish, M.D. located?

The NPPES record lists a practice address at 975 Port Washington RD, Grafton, WI, 53024. Phone: (262) 329-1000. Providers update this record themselves, so call before visiting.

How can I verify Robert N. Fish, M.D.'s license?

NPPES lists Wisconsin license number 55659-020, 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.

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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.