NPPES file of Aug 9, 2026

Robert Gershan, M.D.

Internal Medicine Physician · Menomonee Falls, WI

Robert Gershan, M.D. is an internal medicine physician with a practice address in Menomonee Falls, Wisconsin, and NPI 1740253475, issued on Feb 13, 2006. Check the license (Wisconsin 23058, as entered in NPPES) on the Wisconsin Medical Examining Board; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1740253475
Name
Robert Gershan
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
23058 WI
Self-reported in NPPES; status is on the state search
Practice location
W180N7950 Town Hall RD, Menomonee Falls, WI 53051
Phone
(262) 255-2500
Enumerated
Feb 13, 2006
Record last updated
Feb 3, 2014 (not updated in 12 years: call before relying on the address or phone)
Medicaid ID
30346800 WI
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
Download card Updates feed

8 nearest internal medicine physician records → All 2,078 in Wisconsin → Look up another NPI →

Also registered at W180N7950 Town Hall RD

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

  1. Mahmood Al-Wathiqui, M.D.Cardiovascular Disease Physician1770555906
  2. Gregory Barczak, DPMPodiatrist1235101478
  3. James Buck, M.D.Internal Medicine Physician1902879182
  4. Linda Burger, RN,CDEDiabetes Educator Registered Nurse1861609190
  5. Paul Burger, PACPhysician Assistant1760442495
  6. Sandra Busse, P.T.Physical Therapist1013153956

Verify Robert Gershan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 23058    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Robert Gershan among 2,078 internal medicine physician records in Wisconsin

Robert Gershan, M.D. is one of 2,078 internal medicine physician records with a practice address in Wisconsin. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 9% of them.

  • NPI issued2006 · 9% of these records are older, 46% newer
  • In a Medicare fileNo · 70% of these records are
  • In the CMS Doctors and Clinicians fileNo · 53% of these records are
  • Record last updated2014 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

42 internal medicine physician records list a practice address in Menomonee Falls

They are 42 of the 1,003 NPPES records with a practice address in Menomonee Falls, and 2,078 internal medicine physician records in Wisconsin. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 2,078 in Wisconsin → Every provider in Menomonee Falls → Internal Medicine Physician nationwide →

The 8 internal medicine physician records with the nearest ZIP codes

  1. Patrick Brody, MDMenomonee Falls, WI 530511497787626
  2. James Buck, M.D.Menomonee Falls, WI 530511902879182
  3. Frederick Bulacan, M.D.Menomonee Falls, WI 530511699768622
  4. Paul Flink, M.D.Menomonee Falls, WI 530511841279585
  5. Thomas Gvora, M.D.Menomonee Falls, WI 530511619940723
  6. Elizabeth Hallerman, M.D.Menomonee Falls, WI 530511144293259
  7. Daniel Halloran, MDMenomonee Falls, WI 530511558393702
  8. Charles Holmburg, M.D.Menomonee Falls, WI 530511255304309

Common questions

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

Robert Gershan, M.D.'s National Provider Identifier (NPI) is 1740253475, issued on Feb 13, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Robert Gershan, M.D. located?

The NPPES record lists a practice address at W180N7950 Town Hall RD, Menomonee Falls, WI, 53051. Phone: (262) 255-2500. Providers update this record themselves, so call before visiting.

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

NPPES lists Wisconsin license number 23058, 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. 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.