Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Michael Clanahan, MD

Individual provider Hospitalist Physician · NPI 1457707515

Michael Clanahan, MD is a Gastroenterology in Saint Louis, Missouri. Graduated from Southern Illinois University School of Medicine in 2016, 10 years ago. Practices with Mercy Clinic Gastroenterology LLC, a 65-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Missouri and Ohio.

Years since qualifying
10
Trained at
Southern Illinois University School of Medicine
Licensed in
MO, OH
In the registry since
2016
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

615 S New Ballas Rd Ste 1200
Saint Louis, MO 63141-8221
Phone: (314) 251-2880
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 2023008147 (MO)
Hospitalist Physician Taxonomy 208M00000X · Licence 35.138738 (OH)

Record details

NPI number1457707515
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 9, 2016
Last updated in NPPESAugust 2, 2023
Certification dateAugust 2, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGASTROENTEROLOGY
Medical schoolSOUTHERN ILLINOIS UNIVERSITY SCHOOL OF MEDICINE
Graduated 2016 (10 years in practice)
Group practice Mercy Clinic Gastroenterology Llc — 65 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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