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

Dr. Matthew Brandon Chapman, MD

Individual provider Psychiatry Physician · NPI 1821583949

Dr. Matthew Brandon Chapman, MD is a Psychiatry in Saint Louis, Missouri. Graduated from Creighton University School of Medicine in 2018, 8 years ago. Practices with Washington University, a 2,986-clinician group and accepts Medicare assignment. Licensed in Missouri.

Years since qualifying
8
Trained at
Creighton University School of Medicine
Licensed in
MO
In the registry since
2018
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

1 Barnes Jewish Hospital Plz Dept Psychiatry
Saint Louis, MO 63110-1003
Phone: (314) 286-1700
Fax: (314) 970-9094
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence 2020003379 (MO)

Record details

NPI number1821583949
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 30, 2018
Last updated in NPPESApril 15, 2025
Certification dateMarch 16, 2020

Medicare enrollment

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

Medicare specialtyPSYCHIATRY
Medical schoolCREIGHTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 2018 (8 years in practice)
Group practice Washington University — 2986 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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