Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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William M Irvin Jr., MD

Individual provider Geriatric Psychiatry Physician · NPI 1942392931

William M Irvin Jr., MD is a Psychiatry in Saint Louis, Missouri. Graduated from Saint Louis University School of Medicine in 1997, 29 years ago. Practices with SSM Health Care St Louis, a 175-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Missouri.

Years since qualifying
29
Trained at
Saint Louis University School of Medicine
Licensed in
MO
In the registry since
2006
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

11477 Olde Cabin Rd Ste 210
Saint Louis, MO 63141-7129
Phone: (314) 997-5208
Fax: (314) 997-5368
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Geriatric Psychiatry Physician (primary) Taxonomy 2084P0805X · Licence 2001010868 (MO)

Record details

NPI number1942392931
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedSeptember 28, 2006
Last updated in NPPESDecember 17, 2012

Medicare enrollment

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

Medicare specialtyPSYCHIATRY
Medical schoolSAINT LOUIS UNIVERSITY SCHOOL OF MEDICINE
Graduated 1997 (29 years in practice)
Group practice Ssm Health Care St Louis — 175 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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