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

Dr. Brian Robert Kocak, MD

Individual provider Internal Medicine Physician · NPI 1558090357

Dr. Brian Robert Kocak, MD is a Hospitalist in Saint Louis, Missouri. Graduated from University of Pittsburgh School of Medicine in 2022, 4 years ago. Practices with Washington University, a 2,986-clinician group and accepts Medicare assignment. Licensed in Missouri.

Years since qualifying
4
Trained at
University of Pittsburgh School of Medicine
Licensed in
MO
In the registry since
2022
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

1 Barnes Jewish Hospital Plz Div Im Hospitalist
Saint Louis, MO 63110-1003
Phone: (314) 362-1700
Fax: (314) 362-9878
Show map & directions

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

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence 2024040376 (MO)
Internal Medicine Physician Taxonomy 207R00000X · Licence 2024040376 (MO)

Record details

NPI number1558090357
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 7, 2022
Last updated in NPPESJuly 15, 2025
Certification dateJune 7, 2022

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF PITTSBURGH SCHOOL OF MEDICINE
Graduated 2022 (4 years in practice)
Group practice Washington University — 2986 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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