Michael Rubeiz, MD
Gastroenterology Physician · Saint Louis, MO
Michael Rubeiz, MD is a gastroenterology physician with a practice address in Saint Louis, Missouri, and NPI 1467196535, issued on Apr 25, 2022. Check the license (Missouri 2023043760, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Michael Rubeiz
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 2023043760 MO
Self-reported in NPPES; status is on the state search - Practice location
- 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110
- Phone
- (314) 362-8065
- Enumerated
- Apr 25, 2022
- Record last updated
- Jun 2, 2025
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 414 in Missouri → Look up another NPI →
Also registered at 1 Barnes Jewish Hospital Plz
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Michael Rubeiz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
Search for license 2023043760Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
29% fewer Medicare Part D claims than the average gastroenterology physician in 2024
577 Medicare Part D claims for 74 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. 13 claims were for opioids.
Most prescribed
- Atorvastatin Calcium51 claims
- Amlodipine Besylate30 claims
- Losartan Potassium26 claims
- Albuterol Sulfate Hfa21 claims
- Gabapentin19 claims
- Furosemide18 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.
Michael Rubeiz among 414 gastroenterology physician records in Missouri
Michael Rubeiz, MD is one of 414 gastroenterology physician records with a practice address in Missouri. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 97% of them.
- NPI issued2022 · 97% of these records are older, 2% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileNo · 73% of these records are
- Record last updated2025 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (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 → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Riad Azar, MDSaint Louis, MO 631101952358970
- Chien-Huan Chen, MDSaint Louis, MO 631101588691265
- Jeffrey Crippin, MDSaint Louis, MO 631101265458574
- Nicholas Davidson, MDSaint Louis, MO 631101659397958
- Brian Dieckgraefe, MDSaint Louis, MO 631101295751428
- Jaquelyn Fleckenstein, MDSaint Louis, MO 631101386600864
- Chandra Gyawali, MDSaint Louis, MO 631101821014127
- Tariq Hassan, MDSaint Louis, MO 631101710970587
Common questions
What is Michael Rubeiz, MD's NPI number?
Michael Rubeiz, MD's National Provider Identifier (NPI) is 1467196535, issued on Apr 25, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Michael Rubeiz, MD located?
The NPPES record lists a practice address at 1 Barnes Jewish Hospital Plz, Saint Louis, MO, 63110. Phone: (314) 362-8065. Providers update this record themselves, so call before visiting.
How can I verify Michael Rubeiz, MD's license?
NPPES lists Missouri license number 2023043760, 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 Rubeiz, MD prescribe under Medicare Part D?
In 2024, Michael Rubeiz, MD had 577 Medicare Part D claims for 74 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.
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.