NPPES file of Aug 9, 2026

Thomas A. Bayer, MD

Geriatric Medicine (Internal Medicine) Physician · Riverside, RI

Thomas A. Bayer, MD is a geriatric medicine (internal medicine) physician with a practice address in Riverside, Rhode Island, and NPI 1710276316, issued on Apr 4, 2011. Check the license (Rhode Island MD17811, as entered in NPPES) on the Rhode Island Board of Medical Licensure and Discipline; 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
1710276316
Name
Thomas A. Bayer
Credential
MD
Primary taxonomy
Geriatric Medicine (Internal Medicine) Physician 207RG0300X
License number
MD17811 RI
Self-reported in NPPES; status is on the state search
Practice location
375 Wampanoag Trl, Riverside, RI 02915
Phone
(401) 649-4010
Enumerated
Apr 4, 2011
Record last updated
Jan 28, 2026
Fax
(401) 649-4011
Medicare enrollment
Enrolled (PECOS I20210628003169); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 geriatric medicine (internal medicine) physician records → All 33 in Rhode Island → Look up another NPI →

Also registered at 375 Wampanoag Trl

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

  1. J Gary Abuelo, MDNephrology Physician1396797551
  2. Yasin Abul, M.DInternal Medicine Physician1235517889
  3. Mary Angeli AguinaldoInternal Medicine Physician1174046916
  4. Jesus Aguirre, MDInternal Medicine Physician1831778851
  5. Hina Ali, MDInternal Medicine Physician1346437878
  6. Seema Amin, M.D.Pulmonary Disease Physician1477890754

Verify Thomas A. Bayer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersRhode Island Board of Medical Licensure and Discipline
    Search for license MD17811    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 Rhode Island 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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60% fewer Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024

1,719 Medicare Part D claims for 57 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D. 36 claims were for opioids.

  1. Thomas Bayer1,719
  2. Specialty average4,246

Most prescribed

  1. Donepezil Hcl114 claims
  2. Atorvastatin Calcium108 claims
  3. Levothyroxine Sodium97 claims
  4. Amlodipine Besylate92 claims
  5. Sertraline Hcl75 claims
  6. Trazodone Hcl70 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: $57.44

1 payment: food and beverage; the largest payer was Neurocrine Biosciences, Inc. The 1,004 providers of this specialty with any payment received $1,720.82 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Thomas Bayer$57.44
  2. Specialty average$1,720.82

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

Bills Medicare through 2 group practices

  1. Brown MedicineRiverside, RI
  2. Coastal Medical Physicians IncRiverside, RI

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

Thomas A. Bayer among 33 geriatric medicine (internal medicine) physician records in Rhode Island

Thomas A. Bayer, MD is one of 33 geriatric medicine (internal medicine) physician records with a practice address in Rhode Island. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 64% of them.

  • NPI issued2011 · 64% of these records are older, 24% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated2011 · median 2001 among the 20 with a school on file
  • Record last updated2026 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0300X and a Rhode Island practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

13 geriatric medicine (internal medicine) physician records list a practice address in Riverside

They are 13 of the 586 NPPES records with a practice address in Riverside, and 33 geriatric medicine (internal medicine) physician records in Rhode Island.

All 33 in Rhode Island → Every provider in Riverside → Geriatric Medicine (Internal Medicine) Physician nationwide →

The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes

  1. Richard Besdine, MDRiverside, RI 029151285671990
  2. Julio Defillo Draiby, M.D.Riverside, RI 029151851615553
  3. Peter Hollmann, MDRiverside, RI 029151679687289
  4. Lynn McNicoll, MDRiverside, RI 029151265486443
  5. Aman Nanda, MDRiverside, RI 029151215984257
  6. Iva Neupane, MDRiverside, RI 029151376821793
  7. Olimpia Radu, MDRiverside, RI 029151447247788
  8. Sakeena Raza, M.DRiverside, RI 029151609027697

Common questions

What is Thomas A. Bayer, MD's NPI number?

Thomas A. Bayer, MD's National Provider Identifier (NPI) is 1710276316, issued on Apr 4, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Thomas A. Bayer, MD located?

The NPPES record lists a practice address at 375 Wampanoag Trl, Riverside, RI, 02915. Phone: (401) 649-4010. Providers update this record themselves, so call before visiting.

How can I verify Thomas A. Bayer, MD's license?

NPPES lists Rhode Island license number MD17811, as entered by the provider. Search the Rhode Island Board of Medical Licensure and Discipline at https://healthri.mylicense.com/Verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Thomas A. Bayer, MD prescribe under Medicare Part D?

In 2024, Thomas A. Bayer, MD had 1,719 Medicare Part D claims for 57 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. 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.