NPPES file of Aug 9, 2026

Michael J. Heavey, M.D.

Gastroenterology Physician · Saint Louis, MO

Michael J. Heavey, M.D. is a gastroenterology physician with a practice address in Saint Louis, Missouri, and NPI 1316089261, issued on Feb 13, 2007. Check the license (Missouri 2009005443, 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
1316089261
Name
Michael J. Heavey
Credential
M.D.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
2009005443 MO
Self-reported in NPPES; status is on the state search
Practice location
6400 Clayton RD, Saint Louis, MO 63117
Phone
(314) 646-7848
Enumerated
Feb 13, 2007
Record last updated
Oct 22, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(314) 646-7847
Medicare enrollment
Enrolled (PECOS I20090812000076); accepts Medicare assignment
Medical or professional school
Loyola University Of Chicago, Stritch School Of Medicine, 2003
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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Also registered at 6400 Clayton RD

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

  1. Umar Daud, MDRheumatology Physician1053388942
  2. Michael Gabel, MDOphthalmology Physician1679575302
  3. Deborah Garbo, RN, CS, ANPAdult Health Nurse Practitioner1518966431
  4. Jaclyn Gill, PA-CMedical Physician Assistant1366766735
  5. Edward Heidbrier, MD PCGeriatric Medicine (Internal Medicine) Physician1154373124
  6. Allen Jacobs, DPMFoot & Ankle Surgery Podiatrist1023115177

Verify Michael J. Heavey 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 2009005443    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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29% fewer Medicare Part D claims than the average gastroenterology physician in 2024

572 Medicare Part D claims for 233 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.

  1. Michael Heavey572
  2. Specialty average811

Most prescribed

  1. Pantoprazole Sodium72 claims
  2. Omeprazole65 claims
  3. Diphenoxylate-Atropine62 claims
  4. Dicyclomine Hcl47 claims
  5. Esomeprazole Magnesium34 claims
  6. Clenpiq22 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.

Bills Medicare through one group practice

  1. Ssm Medical Group IncFenton, MO

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

Gastroenterology Physician providers in Missouri

There are 414 gastroenterology physician records in Missouri.

All 414 in Missouri → Every provider in Saint Louis →

Other gastroenterology physician records in Missouri

  1. Yazan Abdalla, M.D.Saint Louis, MO1033365358
  2. Ma'n Abdullah, MDColumbia, MO1598766891
  3. Kelsey Able, DOKansas City, MO1376806588
  4. Barry Abramson, M.D.Saint Louis, MO1922025980
  5. Tarek Abu-Rajab Tamimi, M.D.Kansas City, MO1689840282
  6. Ayooluwatomiwa Adekunle, MDO Fallon, MO1619593779
  7. Aireen-Ronalda Agulto, MDSaint Louis, MO1447771191
  8. Khulood Ahmed, M.D.Columbia, MO1588827893
  9. Mohamed Ahmed, MDKansas City, MO1194353425
  10. Zarir AhmedSaint Louis, MO1770937492

Common questions

What is Michael J. Heavey, M.D.'s NPI number?

Michael J. Heavey, M.D.'s National Provider Identifier (NPI) is 1316089261, issued on Feb 13, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Michael J. Heavey, M.D. located?

The NPPES record lists a practice address at 6400 Clayton RD, Saint Louis, MO, 63117. Phone: (314) 646-7848. Providers update this record themselves, so call before visiting.

How can I verify Michael J. Heavey, M.D.'s license?

NPPES lists Missouri license number 2009005443, 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 Michael J. Heavey, M.D. prescribe under Medicare Part D?

In 2024, Michael J. Heavey, M.D. had 572 Medicare Part D claims for 233 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.