Olayiwola C. Olagbegi, M.D.
Gastroenterology Physician · Saint Louis, MO
Olayiwola C. Olagbegi, M.D. is a gastroenterology physician with a practice address in Saint Louis, Missouri, and NPI 1912011255, issued on Aug 17, 2006. Check the license (Missouri 114046, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Olayiwola C. Olagbegi
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- 114046 MO
036099505 IL
Self-reported in NPPES; status is on the state search - Practice location
- 11155 Dunn RD Ste 309E, Saint Louis, MO 63136
- Phone
- (314) 953-8799
- Enumerated
- Aug 17, 2006
- Record last updated
- Jan 11, 2023
- Medicaid ID
- 209698901 MO
- Medicare enrollment
- Enrolled (PECOS I20101008000332); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 414 in Missouri → Look up another NPI →
Also registered at 11155 Dunn RD Ste 309E
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michael Ansstas, M.D.Gastroenterology Physician1851658728
- Cassidy Aurelio, FNP-CNurse Practitioner1457180127
- Olivia Edwards, PA-CPhysician Assistant1780207795
- Folayemi Ganiyu, NPNurse Practitioner1174340186
- Jason Taylor, M.D.Gastroenterology Physician1972623536
Verify Olayiwola C. Olagbegi 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 114046Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
55% more Medicare Part D claims than the average gastroenterology physician in 2024
1,253 Medicare Part D claims for 400 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 36% of claims.
Most prescribed
- Clenpiq189 claims
- Pantoprazole Sodium181 claims
- Omeprazole111 claims
- Linzess84 claims
- Famotidine82 claims
- Dicyclomine Hcl66 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.
Industry payments in 2024: $1,841.98
88 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
2 hospitals and group practices
- Saint Francis Medical CenterCape Girardeau, MO · Acute Care Hospitals3 of 5 stars
- Fairview Heights Medical Group SCSaint Louis, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Olayiwola C. Olagbegi among 414 gastroenterology physician records in Missouri
Olayiwola C. Olagbegi, M.D. 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 2006, is newer than 14% of them.
- NPI issued2006 · 14% of these records are older, 47% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated1985 · median 2003 among the 303 with a school on file
- Record last updated2023 · 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
- Michael Ansstas, M.D.Saint Louis, MO 631361851658728
- Naeem Aslam, MDSaint Louis, MO 631361750347902
- Ashfaq Hakim, MDSaint Louis, MO 631361548353428
- Muhammad Nyazee, MDSaint Louis, MO 631361952494932
- Jason Taylor, M.D.Saint Louis, MO 631361972623536
- Heather White, MDSaint Louis, MO 631361770576381
- Barry Abramson, M.D.Saint Louis, MO 631311922025980
- Siddique Akram, MDSaint Louis, MO 631311457989071
Common questions
What is Olayiwola C. Olagbegi, M.D.'s NPI number?
Olayiwola C. Olagbegi, M.D.'s National Provider Identifier (NPI) is 1912011255, issued on Aug 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Olayiwola C. Olagbegi, M.D. located?
The NPPES record lists a practice address at 11155 Dunn RD Ste 309E, Saint Louis, MO, 63136. Phone: (314) 953-8799. Providers update this record themselves, so call before visiting.
How can I verify Olayiwola C. Olagbegi, M.D.'s license?
NPPES lists Missouri license number 114046, 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 Olayiwola C. Olagbegi, M.D. prescribe under Medicare Part D?
In 2024, Olayiwola C. Olagbegi, M.D. had 1,253 Medicare Part D claims for 400 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.