NPPES file of Aug 9, 2026

Thomas Spiro, M.D.

Internal Medicine Physician · Saint Louis, MO

Thomas Spiro, M.D. is an internal medicine physician with a practice address in Saint Louis, Missouri, and NPI 1215955455, issued on Jul 17, 2006. Check the license (Missouri MDR4E45, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; 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
1215955455
Name
Thomas Spiro
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
MDR4E45 MO
Self-reported in NPPES; status is on the state search
Practice location
1035 Bellevue Ave, Saint Louis, MO 63117
Phone
(314) 925-4700
Enumerated
Jul 17, 2006
Record last updated
Sep 17, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(314) 925-4750
Medicaid ID
202071619 MO
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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Also registered at 1035 Bellevue Ave

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

  1. Ann Armstrong, ACNP-BCAcute Care Nurse Practitioner1659670552
  2. Marci BenedictPharmacist1275212235
  3. Bruce Brown, MDSurgery Physician1699712323
  4. Judith Dietzler, RPHPharmacist1003899956
  5. Harold Dunn, M.D.Plastic Surgery Physician1326170176
  6. John Durbin, M.D.Internal Medicine Physician1497983787

Verify Thomas Spiro in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
    Search for license MDR4E45
    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 Missouri license search

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98% fewer Medicare Part D claims than the average internal medicine physician in 2024

66 Medicare Part D claims for 17 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Thomas Spiro66
  2. Specialty average3,176

Most prescribed

  1. Sertraline Hcl24 claims
  2. Baclofen12 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.

Thomas Spiro among 2,604 internal medicine physician records in Missouri

Thomas Spiro, M.D. is one of 2,604 internal medicine physician records with a practice address in Missouri. 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 2006, is newer than 8% of them.

  • NPI issued2006 · 8% of these records are older, 59% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileNo · 55% of these records are
  • Record last updated2010 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

941 internal medicine physician records list a practice address in Saint Louis

They are 941 of the 27,605 NPPES records with a practice address in Saint Louis, and 2,604 internal medicine physician records in Missouri.

The 8 internal medicine physician records with the nearest ZIP codes

  1. David Abbott, MDRichmond Heights, MO 631171568448850
  2. Monika Aplyn, M.D.Saint Louis, MO 631171336195247
  3. Kathleen Brunts, M.D.Saint Louis, MO 631171851382204
  4. Danita Cole, MDSaint Louis, MO 631171639152374
  5. Mohammad Emami, MDSaint Louis, MO 631171598712671
  6. Snehal Gandhi, M.D.Saint Louis, MO 631171184608689
  7. William Guyol, MDSaint Louis, MO 631171396738019
  8. Alka Kapoor, MDSaint Louis, MO 631171639122633

Common questions

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

Thomas Spiro, M.D.'s National Provider Identifier (NPI) is 1215955455, issued on Jul 17, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Thomas Spiro, M.D. located?

The NPPES record lists a practice address at 1035 Bellevue Ave, Saint Louis, MO, 63117. Phone: (314) 925-4700. Providers update this record themselves, so call before visiting.

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

NPPES lists Missouri license number MDR4E45, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

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

In 2024, Thomas Spiro, M.D. had 66 Medicare Part D claims for 17 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.