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

Jacob C Holzer, MD

Individual provider Psychiatry Physician · NPI 1144235433

Jacob C Holzer, MD is a Psychiatry in Westborough, Massachusetts. Graduated from Tufts University School of Medicine in 1986, 40 years ago. Practices with The McLean Hospital Corporation, a 186-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Massachusetts.

Years since qualifying
40
Trained at
Tufts University School of Medicine
Licensed in
MA
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 Partly verified

Some contact details are missing from the federal record.

Westborough State Hospital 288 Lyman St
Westborough, MA 01581
Phone: (508) 616-2525
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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 74258 (MA)

Record details

NPI number1144235433
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 29, 2006
Last updated in NPPESJuly 8, 2007
Mailing addressWestborough State Hospital, 288 Lyman St, Westborough, MA 01581

Medicare enrollment

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

Medicare specialtyPSYCHIATRY
Medical schoolTUFTS UNIVERSITY SCHOOL OF MEDICINE
Graduated 1986 (40 years in practice)
Group practice The McLean Hospital Corporation — 186 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

Other providers in Westborough