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

Individual provider Psychiatry Physician · NPI 1861424665

Dr. John Robert Rostkowski, MD is a Psychiatry in Concord, California. Graduated from New York University School of Medicine in 1969, 57 years ago. Practices with Contra Costa County, a 73-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
57
Trained at
New York University School of Medicine
Licensed in
CA
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

1420 Willow Pass Rd # 200
Concord, CA 94520-5823
Phone: (925) 899-3883
Fax: (925) 229-9037
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence G24111 (CA)

Record details

NPI number1861424665
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJuly 6, 2006
Last updated in NPPESMarch 1, 2023
Certification dateJune 15, 2021
Mailing address1150 Arlington Way, Martinez, CA 94553-2322

Medicare enrollment

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

Medicare specialtyPSYCHIATRY
Medical schoolNEW YORK UNIVERSITY SCHOOL OF MEDICINE
Graduated 1969 (57 years in practice)
Group practice Contra Costa County — 73 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Concord