Registry data as of Aug 27, 2026

Thomas Fong, M.D.

Hematology & Oncology Physician · Saint Louis, MO

Thomas Fong, M.D. is a hematology & oncology physician with a practice address in Saint Louis, Missouri, and NPI 1790812642, issued on Feb 27, 2007. Check the license on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1790812642
Name
Thomas Fong
Credential
M.D.
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
Practice location
660 S Euclid Ave, Saint Louis, MO 63110
Phone
(314) 747-8479
Enumerated
Feb 27, 2007
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 660 S Euclid Ave

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

  1. Brooj Abro, MDHematology (Pathology) Physician1205312972
  2. Benjamin AdamsStudent in an Organized Health Care Education/Training Program1275320285
  3. Loren AdlerStudent in an Organized Health Care Education/Training Program1134988488
  4. Garima Agrawal, M.D.Nuclear Medicine Physician1104132331
  5. Kelly Ahern, MDPsychiatry Physician1740178177
  6. Mueed Ahmad, M.D.Otolaryngology Physician1841329661

Verify Thomas Fong in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMissouri Board of Registration for the Healing ArtsCheck 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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

84% more Medicare Part D claims than the average hematology & oncology physician in 2024

1,631 Medicare Part D claims for 326 beneficiaries, against an average of 885 among the 8,428 providers of this specialty who prescribed in Part D. 29 claims were for opioids.

  1. Thomas Fong1,631
  2. Specialty average885

Most prescribed

  1. Anastrozole244 claims
  2. Prednisone121 claims
  3. Dexamethasone107 claims
  4. Abiraterone Acetate102 claims
  5. Ondansetron Odt98 claims
  6. Lenalidomide74 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.

One hospital or facility affiliation

  1. Southern California Permanente Medical GroupFontana, CA

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Hematology & Oncology Physician providers in Missouri

There are 188 hematology & oncology physician records in Missouri.

Other hematology & oncology physician records in Missouri

  1. Mahmoud Abdelsamia, MDKansas City, MO1295351476
  2. Jamshed Agha, MDSaint Charles, MO1720041395
  3. Bader Alahmari, MBBSSt Louis, MO1538564620
  4. Yaqoob Ali, M.D.Rolla, MO1477582799
  5. Ace Allen, M.D.Kansas City, MO1891721825
  6. Marci Allen, DOKansas City, MO1063672012
  7. Amir AnisJoplin, MO1598859084
  8. Norin Ansari, MD, MPHLees Summit, MO1023546165
  9. Juliet Appiah, M.D.Kansas City, MO1992939599
  10. Getinet Ayalew, M.D.Bridgeton, MO1326235797

Common questions

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

Thomas Fong, M.D.'s National Provider Identifier (NPI) is 1790812642, issued on Feb 27, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Thomas Fong, M.D. located?

The NPPES record lists a practice address at 660 S Euclid Ave, Saint Louis, MO, 63110. Phone: (314) 747-8479. Providers update this record themselves, so call before visiting.

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

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 Fong, M.D. prescribe under Medicare Part D?

In 2024, Thomas Fong, M.D. had 1,631 Medicare Part D claims for 326 beneficiaries; the average among hematology & oncology physician prescribers was 885. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.