NPPES file of Aug 9, 2026

Thomas M. Gellhaus, MD

Obstetrics & Gynecology Physician · Iowa City, IA

Thomas M. Gellhaus, MD is an obstetrics & gynecology physician with a practice address in Iowa City, Iowa, and NPI 1518931062, issued on Feb 13, 2006. Check the license (Iowa MD-27602, as entered in NPPES) on the Iowa Board of Medicine; 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
1518931062
Name
Thomas M. Gellhaus
Credential
MD
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License numbers
MD-27602 IA
27602 IA
Self-reported in NPPES; status is on the state search
Practice location
200 Hawkins Dr, Iowa City, IA 52242
Phone
(319) 353-6095
Enumerated
Feb 13, 2006
Record last updated
Aug 15, 2024
Fax
(319) 384-8620
Medicare enrollment
Enrolled (PECOS I20100819000910); accepts Medicare assignment
Medical or professional school
University Of Oklahoma College Of Medicine, 1983
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 obstetrics & gynecology physician records → All 339 in Iowa → Look up another NPI →

Also registered at 200 Hawkins Dr

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

  1. Helena Aaberg, MDAnesthesiology Physician1689301558
  2. Abdullah Abbasi, MDGastroenterology Physician1932944204
  3. Mary Jo Abbott, RPHPharmacist1841325875
  4. Francois Abboud, MDCardiovascular Disease Physician1598753113
  5. Abdalla Abdalla, MBBCHAnatomic Pathology & Clinical Pathology Physician1518859826
  6. Sameh AbdallaAnatomic Pathology & Clinical Pathology Physician1437902160

Verify Thomas M. Gellhaus in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIowa Board of Medicine
    Search for license MD-27602    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 Iowa 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. State University OF IowaIowa City, IA

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

Thomas M. Gellhaus among 339 obstetrics & gynecology physician records in Iowa

Thomas M. Gellhaus, MD is one of 339 obstetrics & gynecology physician records with a practice address in Iowa. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 25% of them.

  • NPI issued2006 · 25% of these records are older, 49% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 55% of these records are
  • Graduated1983 · median 2006 among the 188 with a school on file
  • Record last updated2024 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Physician providers in Iowa

There are 339 obstetrics & gynecology physician records in Iowa.

All 339 in Iowa → Every provider in Iowa City → Obstetrics & Gynecology Physician nationwide →

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Barrie Anderson, MDIowa City, IA 522421003803867
  2. Noelle Bowdler, MDIowa City, IA 522421396732160
  3. Joseph Ehle, MDIowa City, IA 522421457337453
  4. Marygrace Elson, MDIowa City, IA 522421932193133
  5. Jane Engeldinger, MDIowa City, IA 522421932193125
  6. Paul Heimbecker, MDIowa City, IA 522421396719266
  7. Veronika Kolder, MDIowa City, IA 522421427047547
  8. Barbara Patrick, M.D.Iowa City, IA 522421538153457

Common questions

What is Thomas M. Gellhaus, MD's NPI number?

Thomas M. Gellhaus, MD's National Provider Identifier (NPI) is 1518931062, issued on Feb 13, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Thomas M. Gellhaus, MD located?

The NPPES record lists a practice address at 200 Hawkins Dr, Iowa City, IA, 52242. Phone: (319) 353-6095. Providers update this record themselves, so call before visiting.

How can I verify Thomas M. Gellhaus, MD's license?

NPPES lists Iowa license number MD-27602, as entered by the provider. Search the Iowa Board of Medicine at https://dial.iowa.gov/about-dial/boards-and-commissions/medicine. 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.