Dr. Trehan is on Doximity
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Office
100 Cortona Way
Suite 140
Brentwood, CA 94513Phone+1 925-516-4488Fax+1 925-516-4545
Education & Training
- New York Medical College at Westchester Medical CenterFellowship, Geriatric Medicine (Internal Medicine), 1998 - 1999
- Westchester Medical CenterResidency, Internal Medicine, 1995 - 1998
- Maulana Azad Medical CollegeClass of 1995
Certifications & Licensure![](https://directory.doximity.com/assets/icons/icon-help-e9f0b148a1e6d1f037dde9f26f025c36bd7c99fd4fe31fd76792996fa2aa5e66.svg)
- CA State Medical License 1999 - 2026
- CT State Medical License 1998 - 1999
- American Board of Internal Medicine Internal Medicine
- American Board of Internal Medicine Geriatric Medicine
Awards, Honors, & Recognition
- CMS Meaningful Use Stage 1 Certification eClinicalWorks EHR, eClinicalWorks LLC, 2011, 2013
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