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

Individual provider Obstetrics & Gynecology Physician · NPI 1659483154

Brian James Vierra, MD is an Obstetrics/Gynecology in Merced, California. Graduated from Loyola University of Chicago, Stritch School of Medicine in 1987, 39 years ago. Practices with Merced Faculty Associates Medical Group Incorporated, a 26-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
39
Trained at
Loyola University of Chicago, Stritch 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

378 W Olive Ave Ste D
Merced, CA 95348-3182
Phone: (209) 725-7560
Fax: (209) 725-7561
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence G70901 (CA)

Record details

NPI number1659483154
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 31, 2006
Last updated in NPPESDecember 11, 2020
Certification dateDecember 11, 2020

Medicare enrollment

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

Medicare specialtyOBSTETRICS/GYNECOLOGY
Medical schoolLOYOLA UNIVERSITY OF CHICAGO, STRITCH SCHOOL OF MEDICINE
Graduated 1987 (39 years in practice)
Group practice Merced Faculty Associates Medical Group Incorporated — 26 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Other providers in Merced