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

Dr. William R Beardslee, MD

Individual provider Psychiatry Physician · NPI 1386723484

Dr. William R Beardslee, MD is a Psychiatry Physician in Boston, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2006.

Licensed in
MA
In the registry since
2006
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

300 Longwood Ave
Boston, MA 02115-5724
Phone: (617) 355-6087
Fax: (617) 730-0271
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Child & Adolescent Psychiatry Physician (primary) Taxonomy 2084P0804X · Licence 34475 (MA)
Psychiatry Physician Taxonomy 2084P0800X · Licence 34475 (MA)

Record details

NPI number1386723484
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 2, 2006
Last updated in NPPESSeptember 11, 2025
Mailing address27 Shepard St, Cambridge, MA 02138-1504

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