NPPES file of Aug 9, 2026

Gary K. Ludwig, MD

Anatomic Pathology & Clinical Pathology Physician · Neenah, WI

Gary K. Ludwig, MD is an anatomic pathology & clinical pathology physician with a practice address in Neenah, Wisconsin, and NPI 1154302578, issued on Nov 11, 2005. Check the license (Wisconsin 29732-020, 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
1154302578
Name
Gary K. Ludwig
Credential
MD
Primary taxonomy
Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
License number
29732-020 WI
Self-reported in NPPES; status is on the state search
Practice location
130 2ND St, Neenah, WI 54956
Phone
(920) 729-2500
Enumerated
Nov 11, 2005
Record last updated
Jun 4, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(920) 729-3031
Medicaid ID
31456600 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.
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8 nearest anatomic pathology & clinical pathology physician records → All 335 in Wisconsin → Look up another NPI →

Also registered at 130 2ND St

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

  1. Lynn Abitz, RD, CDRegistered Dietitian1801011127
  2. Katelyn Algas, MSOT, OTR/LOccupational Therapist1528673555
  3. Nicholas AndersonPediatrics Physician1366976409
  4. Robert Anderson, M.D.Anesthesiology Physician1679672638
  5. Roshani AryalStudent in an Organized Health Care Education/Training Program1972426435
  6. Crystal Bales, DNP, RN, CPNPPediatric Nurse Practitioner1376094664

Verify Gary K. Ludwig in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 29732-020    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

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Gary K. Ludwig among 335 anatomic pathology & clinical pathology physician records in Wisconsin

Gary K. Ludwig, MD is one of 335 anatomic pathology & clinical pathology physician records with a practice address in Wisconsin. 58% 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 95% newer
  • In a Medicare fileNo · 58% of these records are
  • In the CMS Doctors and Clinicians fileNo · 50% of these records are
  • Record last updated2014 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZP0102X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Anatomic Pathology & Clinical Pathology Physician providers in Wisconsin

There are 335 anatomic pathology & clinical pathology physician records in Wisconsin. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 335 in Wisconsin → Every provider in Neenah → Anatomic Pathology & Clinical Pathology Physician nationwide →

The 8 anatomic pathology & clinical pathology physician records with the nearest ZIP codes

  1. Rebecca BuellNeenah, WI 549561679869630
  2. Tiffany Corrigan, MDNeenah, WI 549561811978232
  3. Mona Hermina, MDNeenah, WI 549561811978224
  4. Sara McClintock-Treep, MDNeenah, WI 549561982751855
  5. Karla Sendelbach-Elizondo, MDNeenah, WI 549561932180338
  6. Amy Sheldon, MDNeenah, WI 549561831274927
  7. Sagar Vishal, M.D.Neenah, WI 549561700298460
  8. Jennifer Ziebell, MDNeenah, WI 549561750918942

Common questions

What is Gary K. Ludwig, MD's NPI number?

Gary K. Ludwig, MD's National Provider Identifier (NPI) is 1154302578, issued on Nov 11, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Gary K. Ludwig, MD located?

The NPPES record lists a practice address at 130 2ND St, Neenah, WI, 54956. Phone: (920) 729-2500. Providers update this record themselves, so call before visiting.

How can I verify Gary K. Ludwig, MD's license?

NPPES lists Wisconsin license number 29732-020, 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. 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.