NPPES file of Aug 9, 2026

Thomas Gerald Ferreri, M.D.

Emergency Medicine Physician · Saginaw, MI

Thomas Gerald Ferreri, M.D. is an emergency medicine physician with a practice address in Saginaw, Michigan, and NPI 1235666934, issued on May 12, 2017. Check the license (Michigan 4301501038, as entered in NPPES) on the Michigan Board of Medicine (LARA); 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
1235666934
Name
Thomas Gerald Ferreri
Credential
M.D.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
4301501038 MI
Self-reported in NPPES; status is on the state search
Practice location
900 Cooper Ave, Saginaw, MI 48602
Phone
(989) 583-0000
Enumerated
May 12, 2017
Record last updated
Jul 1, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20200123001538); accepts Medicare assignment
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.
Download card Updates feed

8 nearest emergency medicine physician records → All 3,083 in Michigan → Look up another NPI →

Also registered at 900 Cooper Ave

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

  1. Christopher Ader, MSNFamily Nurse Practitioner1508141235
  2. Bashar Al Jayyousi, MDInterventional Cardiology Physician1225292568
  3. Parthiv Amin, MDCardiovascular Disease Physician1164650834
  4. Jean Barker, PA-CPhysician Assistant1053957548
  5. Justin Bielby, RNCertified Registered Nurse Anesthetist1649884958
  6. Kaitlyn Bishop, D.O.Emergency Medicine Physician1346685237

Verify Thomas Gerald Ferreri in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
    Search for license 4301501038    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 Michigan 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.

48% fewer Medicare Part D claims than the average emergency medicine physician in 2024

118 Medicare Part D claims for 90 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 26 claims were for opioids.

  1. Thomas Ferreri118
  2. Specialty average226

Most prescribed

  1. Hydrocodone-Acetaminophen26 claims
  2. Cephalexin21 claims
  3. Methocarbamol12 claims
  4. Prednisone11 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: $43.23

3 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. The 12,335 providers of this specialty with any payment received $953.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Thomas Ferreri$43.23
  2. Specialty average$953.79

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

Bills Medicare through one group practice

  1. Covenant Medical Center IncSaginaw, MI

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

Thomas Gerald Ferreri among 3,083 emergency medicine physician records in Michigan

Thomas Gerald Ferreri, M.D. is one of 3,083 emergency medicine physician records with a practice address in Michigan. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 66% of them.

  • NPI issued2017 · 66% of these records are older, 31% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2017 · median 2013 among the 1,931 with a school on file
  • Record last updated2020 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

182 emergency medicine physician records list a practice address in Saginaw

They are 182 of the 6,008 NPPES records with a practice address in Saginaw, and 3,083 emergency medicine physician records in Michigan.

All 3,083 in Michigan → Every provider in Saginaw → Emergency Medicine Physician nationwide →

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Mary Arvanitis, DOSaginaw, MI 486021295722841
  2. Andrew Bazakis, M.D.Saginaw, MI 486021114914603
  3. Kevin Carnahan, DOSaginaw, MI 486021124093174
  4. Kathleen Cowling, DOSaginaw, MI 486021790772283
  5. Matthew Deibel, MDSaginaw, MI 486021427019652
  6. Frederick Dunham, MDSaginaw, MI 486021598799082
  7. Allison Gormley, DOSaginaw, MI 486021912955014
  8. Kirsten Guenther, M.D.Saginaw, MI 486021861506156

Common questions

What is Thomas Gerald Ferreri, M.D.'s NPI number?

Thomas Gerald Ferreri, M.D.'s National Provider Identifier (NPI) is 1235666934, issued on May 12, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Thomas Gerald Ferreri, M.D. located?

The NPPES record lists a practice address at 900 Cooper Ave, Saginaw, MI, 48602. Phone: (989) 583-0000. Providers update this record themselves, so call before visiting.

How can I verify Thomas Gerald Ferreri, M.D.'s license?

NPPES lists Michigan license number 4301501038, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Thomas Gerald Ferreri, M.D. prescribe under Medicare Part D?

In 2024, Thomas Gerald Ferreri, M.D. had 118 Medicare Part D claims for 90 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.

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.