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DR. WILLIAM R BEARDSLEE MD
NPI 1386723484
Psychiatry & Neurology - Child & Adolescent Psychiatry in Boston, MA

Active since November 02, 2006
300 LONGWOOD AVE, BOSTON, MA 02115(617) 355-6087(617) 730-0271 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. William R Beardslee Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. WILLIAM R BEARDSLEE MD (NPI 1386723484) is an individual child & adolescent psychiatry provider in Boston, Massachusetts, licensed in Massachusetts (34475) and active in the NPI registry since November 2006.

NPPES Registry Identity

NPI1386723484
Entity TypeIndividualMale
Primary Taxonomy2084P0804X
Provider Legal NameDR. WILLIAM R BEARDSLEECredential: MD
Location Address300 LONGWOOD AVEBoston, MA 02115-5724
Mailing Address27 Shepard StCambridge, MA 02138-1504 · (617) 868-9666
Phone(617) 355-6087
Fax(617) 730-0271
Sole ProprietorNo
Enumeration DateNovember 2, 2006
Last NPPES UpdateSeptember 11, 2025
✔ NPI 1386723484 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychiatry & Neurology · Child & Adolescent PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0804X
License✔ Licensed in MA · 34475
Definition
Child & Adolescent Psychiatry is a subspecialty of psychiatry with additional skills and training in the diagnosis and treatment of developmental, behavioral, emotional, and mental disorders of childhood and adolescence.
Also ListedPsychiatry & Neurology · PsychiatryTaxonomy 2084P0800X · License 34475 (MA)
300 LONGWOOD AVE, Boston, MA 02115
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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JULIE ANN HANSEN LCSW
Social Worker (Clinical)
300 LONGWOOD AVE
BOSTON, MA 02115
Suffolk County (857) 218-4309
MS. ANNA ROGLIERI
Nurse Practitioner (Psychiatric/Mental Health)
300 LONGWOOD AVE
BOSTON, MA 02115
Suffolk County (617) 355-6000
STEPHEN G. FLYNN M.D.
Anesthesiology (Pediatric Anesthesiology)
300 LONGWOOD AVE
BOSTON, MA 02115
Suffolk County (617) 355-6000
MISS LAUREN ASHLEY MASTERSON P.T., D.P.T
Physical Therapist
300 LONGWOOD AVE
BOSTON, MA 02115
Suffolk County (617) 355-7216
MS. SOYUN KWAN LICSW
Social Worker (Clinical)
300 LONGWOOD AVE, CHILDREN'S HOSPITAL BOSTON
BOSTON, MA 02115
Suffolk County (617) 355-0567
PUJA BANKA M.D.
Pediatrics
300 LONGWOOD AVE, BADER 203
BOSTON, MA 02115
Suffolk County (617) 355-6363
MR. COURTNEY SULLIVAN FRATTO CPNP
Nurse Practitioner (Pediatrics)
300 LONGWOOD AVE, HUNNEWELL BUILDING 322
BOSTON, MA 02115
Suffolk County (857) 218-4085
DR. ELIZABETH S TAGLAUER M.D., PH.D.
Pediatrics (Neonatal-Perinatal Medicine)
300 LONGWOOD AVE
BOSTON, MA 02115
Suffolk County (617) 355-6000

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Beardslee's NPI number?

The NPI number for William Beardslee is 1386723484. It was assigned to this individual provider in the NPPES registry on November 2, 2006.

Where is William Beardslee located?

William Beardslee practices at 300 Longwood Ave, Boston, MA 02115. The listed phone number is (617) 355-6087.

What is William Beardslee's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Child & Adolescent Psychiatry, with taxonomy code 2084P0804X.

When was this NPI record last updated?

The NPPES record for William Beardslee was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.