Osama Altayar, MD
Gastroenterology Physician · Saint Louis, MO
Osama Altayar, MD is a gastroenterology physician with a practice address in Saint Louis, Missouri, and NPI 1831536176, issued on May 28, 2013. Check the license (Missouri 2018004575, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Osama Altayar
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 2018004575 MO
Self-reported in NPPES; status is on the state search - Practice location
- 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110
- Phone
- (314) 747-2066
- Enumerated
- May 28, 2013
- Record last updated
- Apr 15, 2025
- Fax
- (314) 362-2357
- Medicaid ID
- 200064237 MO
- Medicare enrollment
- Enrolled (PECOS I20190812001816); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- 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 Osama Altayar 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 2018004575Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
14% fewer Medicare Part D claims than the average gastroenterology physician in 2024
697 Medicare Part D claims for 204 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 33% of claims.
Most prescribed
- Linzess113 claims
- Omeprazole85 claims
- Gavilyte-G77 claims
- Pantoprazole Sodium48 claims
- Motegrity31 claims
- Esomeprazole Magnesium29 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 79.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Washington UniversitySaint Louis, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Osama Altayar among 414 gastroenterology physician records in Missouri
Osama Altayar, 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 2013, is newer than 77% of them.
- NPI issued2013 · 77% of these records are older, 21% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated2011 · median 2003 among the 303 with a school on file
- 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 Osama Altayar, MD's NPI number?
Osama Altayar, MD's National Provider Identifier (NPI) is 1831536176, issued on May 28, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Osama Altayar, MD located?
The NPPES record lists a practice address at 1 Barnes Jewish Hospital Plz, Saint Louis, MO, 63110. Phone: (314) 747-2066. Providers update this record themselves, so call before visiting.
How can I verify Osama Altayar, MD's license?
NPPES lists Missouri license number 2018004575, 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 Osama Altayar, MD prescribe under Medicare Part D?
In 2024, Osama Altayar, MD had 697 Medicare Part D claims for 204 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Osama Altayar, MD's MIPS final score?
The 2023 MIPS final score is 79.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.