NPPES file of Aug 9, 2026

John Thomas Anstey, M.D.

Obstetrics & Gynecology Physician · Saint Louis, MO

John Thomas Anstey, M.D. is an obstetrics & gynecology physician with a practice address in Saint Louis, Missouri, and NPI 1669470878, issued on Jul 12, 2005. Check the license (Missouri R5841, 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
1669470878
Name
John Thomas Anstey
Credential
M.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
R5841 MO
Self-reported in NPPES; status is on the state search
Practice location
3009 N Ballas RD, Saint Louis, MO 63131
Phone
(314) 432-2880
Enumerated
Jul 12, 2005
Record last updated
Jul 13, 2026
Fax
(314) 432-4810
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 3009 N Ballas RD

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

  1. Asim Ali, MDInternal Medicine Physician1821047218
  2. Christina Allen, AU.D.Audiologist1922382464
  3. Lizette Alvarez, M.D.Physical Medicine & Rehabilitation Physician1750342580
  4. Proceso Arenos, MDSurgery Physician1245259498
  5. Jayne Aschen, PA-CPhysician Assistant1215236740
  6. Jill Baer, M.D.Pediatric Adolescent Medicine Physician1518030097

Verify John Thomas Anstey 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 R5841    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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92% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

14 Medicare Part D claims, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. John Anstey14
  2. Specialty average165

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.

332 obstetrics & gynecology physician records list a practice address in Saint Louis

They are 332 of the 27,605 NPPES records with a practice address in Saint Louis, and 902 obstetrics & gynecology physician records in Missouri.

All 332 in Saint Louis → All 902 in Missouri → Every provider in Saint Louis →

Other obstetrics & gynecology physician records in Missouri

  1. Ana Adams, DOKansas City, MO1962151613
  2. Pamela Adams, MDSaint Louis, MO1104116995
  3. Allie Adrian, MDSaint Louis, MO1205621596
  4. Mona Afrassiab, DOOsage Beach, MO1679572119
  5. Gabrielle AgcaoiliKansas City, MO1023909249
  6. Christoper Ahlering, M.D.Saint Louis, MO1760419485
  7. Sandra Ahlum, M.D.Hannibal, MO1427037183
  8. Nusrat Ahmad, MDSaint Louis, MO1114966348
  9. Natasha Ahmed, M.D.Kansas City, MO1861758716
  10. Tanvira Alam, DOO Fallon, MO1265670525

Common questions

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

John Thomas Anstey, M.D.'s National Provider Identifier (NPI) is 1669470878, issued on Jul 12, 2005. An NPI identifies a provider in billing; it is not a license.

Where is John Thomas Anstey, M.D. located?

The NPPES record lists a practice address at 3009 N Ballas RD, Saint Louis, MO, 63131. Phone: (314) 432-2880. Providers update this record themselves, so call before visiting.

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

NPPES lists Missouri license number R5841, 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 John Thomas Anstey, M.D. prescribe under Medicare Part D?

In 2024, John Thomas Anstey, M.D. had 14 Medicare Part D claims; the average among obstetrics & gynecology physician prescribers was 165. 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.