NPPES file of Aug 9, 2026

Steven Patrick Thoma, M.D.

Urology Physician · Ames, IA

Steven Patrick Thoma, M.D. is a urology physician with a practice address in Ames, Iowa, and NPI 1598021131, issued on Apr 9, 2012. Check the license (Iowa 44576, 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 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1598021131
Name
Steven Patrick Thoma
Credential
M.D.
Primary taxonomy
Urology Physician 208800000X
License number
44576 IA
Self-reported in NPPES; status is on the state search
Practice location
1215 Duff Ave, Ames, IA 50010
Phone
(515) 239-4490
Enumerated
Apr 9, 2012
Record last updated
Mar 2, 2026
Fax
(515) 239-4771
Medicare enrollment
Enrolled (PECOS I20170915001958); accepts Medicare assignment
Medical or professional school
Louisiana State University School Of Medicine In Shreveport, 2012
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 1215 Duff Ave

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

  1. Christopher AlbertPharmacist1811480056
  2. Jill AlexanderPediatrics Physician1851387591
  3. Rupal Amin, M.D.Internal Medicine Physician1225024995
  4. Trisha Andersen, DOAnatomic Pathology & Clinical Pathology Physician1518917947
  5. Randy Anderson, MDDiagnostic Radiology Physician1912115288
  6. Manuel Arbelaez Agudelo, MDInternal Medicine Physician1093237562

Verify Steven Patrick Thoma in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIowa Board of Medicine
    Search for license 44576
    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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47% more Medicare Part D claims than the average urology physician in 2024

1,967 Medicare Part D claims for 419 beneficiaries, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims. 45 claims were for opioids.

  1. Steven Thoma1,967
  2. Specialty average1,340

Most prescribed

  1. Tamsulosin Hcl576 claims
  2. Oxybutynin Chloride Er219 claims
  3. Finasteride216 claims
  4. Gemtesa191 claims
  5. Ciprofloxacin Hcl176 claims
  6. Myrbetriq155 claims

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.

Industry payments in 2024: $377.76

17 payments; by number, the most common kind was food and beverage; the largest payer was Urogen Pharma, Inc. The 9,340 providers of this specialty with any payment received $3,800.04 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Steven Thoma$377.76
  2. Specialty average$3,800.04

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 5 group practices

  1. Ascension Medical Group-Fox Valley Wisconsin IncAppleton, WI
  2. Mason City Clinic PCMason City, IA
  3. Mcfarland Clinic PCAmes, IA
  4. North Iowa Mercy ClinicsMason City, IA
  5. St. Luke's Hospital OF DuluthDuluth, MN

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

Steven Patrick Thoma among 128 urology physician records in Iowa

Steven Patrick Thoma, M.D. is one of 128 urology physician records with a practice address in Iowa. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 63% of them.

  • NPI issued2012 · 63% of these records are older, 32% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2012 · median 2004 among the 80 with a school on file
  • Record last updated2026 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208800000X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Urology Physician providers in Iowa

There are 128 urology physician records in Iowa.

The 8 urology physician records with the nearest ZIP codes

  1. Damon Dyche, M.D.Ames, IA 500101194930081
  2. Garrett Korrect, MDAmes, IA 500101548414188
  3. Leo Milleman, M.D.Ames, IA 500101598756587
  4. Charles Paul, MDAmes, IA 500101386171437
  5. Bradley Thorgaard, MDAmes, IA 500141356323554
  6. Gary Peasley, M.D.Marshalltown, IA 501581225029416
  7. Russell Bandstra, M.D.Pella, IA 502191619948098
  8. Fawad Zafar, M.D.West Des Moines, IA 502651003818493

Common questions

What is Steven Patrick Thoma, M.D.'s NPI number?

Steven Patrick Thoma, M.D.'s National Provider Identifier (NPI) is 1598021131, issued on Apr 9, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Steven Patrick Thoma, M.D. located?

The NPPES record lists a practice address at 1215 Duff Ave, Ames, IA, 50010. Phone: (515) 239-4490. Providers update this record themselves, so call before visiting.

How can I verify Steven Patrick Thoma, M.D.'s license?

NPPES lists Iowa license number 44576, 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.

How much does Steven Patrick Thoma, M.D. prescribe under Medicare Part D?

In 2024, Steven Patrick Thoma, M.D. had 1,967 Medicare Part D claims for 419 beneficiaries; the average among urology physician prescribers was 1,340. 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.