Joel Riley, M.D.
Gastroenterology Physician · Saint Louis, MO
Joel Riley, M.D. is a gastroenterology physician with a practice address in Saint Louis, Missouri, and NPI 1164440301, issued on Jul 17, 2006. Check the license (Missouri MDR7G19, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Joel Riley
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- MDR7G19 MO
Self-reported in NPPES; status is on the state search - Practice location
- 6400 Clayton RD, Saint Louis, MO 63117
- Phone
- (314) 951-5368
- Enumerated
- Jul 17, 2006
- Record last updated
- Oct 26, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (314) 951-5238
- Medicaid ID
- 202754933 MO
- Medicare enrollment
- Enrolled (PECOS I20080716000420); accepts Medicare assignment
- Medical or professional school
- Meharry Medical College School Of Medicine, 1986
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 414 in Missouri → Look up another NPI →
Also registered at 6400 Clayton RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Umar Daud, MDRheumatology Physician1053388942
- Michael Gabel, MDOphthalmology Physician1679575302
- Deborah Garbo, RN, CS, ANPAdult Health Nurse Practitioner1518966431
- Jaclyn Gill, PA-CMedical Physician Assistant1366766735
- Michael Heavey, M.D.Gastroenterology Physician1316089261
- Edward Heidbrier, MD PCGeriatric Medicine (Internal Medicine) Physician1154373124
Verify Joel Riley 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 MDR7G19Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
74% more Medicare Part D claims than the average gastroenterology physician in 2024
1,414 Medicare Part D claims for 405 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.
Most prescribed
- Famotidine216 claims
- Omeprazole179 claims
- Pantoprazole Sodium175 claims
- Gavilyte-G76 claims
- Linzess75 claims
- Mesalamine59 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
- Ssm Medical Group IncSaint Louis, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joel Riley among 414 gastroenterology physician records in Missouri
Joel Riley, 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
- Graduated1986 · median 2003 among the 303 with a school on file
- Record last updated2020 · 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
- Ruben Aymerich, MDSaint Louis, MO 631171609858562
- Hani El-Halawany, M.D.Richmond Heights, MO 631171558633008
- Neil Frederickson, M.D.Saint Louis, MO 631171245385327
- Ronald Gould, M.D.Saint Louis, MO 631171811042708
- Michael Heavey, M.D.Saint Louis, MO 631171316089261
- Anna Niesen, MDSt Louis, MO 631171184709107
- Nicole Shen, M.D.Saint Louis, MO 631171073856027
- Giao Vuong, M.D.Saint Louis, MO 631171902034499
Common questions
What is Joel Riley, M.D.'s NPI number?
Joel Riley, M.D.'s National Provider Identifier (NPI) is 1164440301, issued on Jul 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Joel Riley, M.D. located?
The NPPES record lists a practice address at 6400 Clayton RD, Saint Louis, MO, 63117. Phone: (314) 951-5368. Providers update this record themselves, so call before visiting.
How can I verify Joel Riley, M.D.'s license?
NPPES lists Missouri license number MDR7G19, 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 Joel Riley, M.D. prescribe under Medicare Part D?
In 2024, Joel Riley, M.D. had 1,414 Medicare Part D claims for 405 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.