Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Harvard Vanguard Medical Associates

Social Worker in Wellesley, MA · enumerated 2007 · authorized official Debra Geihsler, Chief Executive Officer.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1649399460

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Registry record

Entity type Organization (Type 2)

Legal business name Harvard Vanguard Medical Associates

Practice address 230 Worcester St, Wellesley, MA, 02481

Phone (781) 431-5270

Fax (781) 431-5535

Enumeration date Mar 29, 2007

Last updated in NPPES Sep 11, 2025

Taxonomy & classification

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers Secondary

103T00000X Psychologist Behavioral Health & Social Service Providers Secondary

104100000X Social Worker Behavioral Health & Social Service Providers Primary

364S00000X Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers Secondary

Authorized official

Name Debra Geihsler

Title Chief Executive Officer

Phone (617) 559-8012

Other identifiers

Identifier	Type	State	Issuer
669500	Other	MA	TUFTS

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is Harvard Vanguard Medical Associates?

Harvard Vanguard Medical Associates is registered in NPPES as a Social Worker (its primary provider taxonomy).

Providers at this address

Browse all →

Thomas Cooper Dermatology Physician · Wellesley, MA NPI 1932106572 Julianne Walsh Nurse Practitioner · Wellesley, MA NPI 1770584096 Fern Wirth Procedural Dermatology Physician · Wellesley, MA NPI 1982692240 James Phillips Orthopaedic Surgery Physician · Wellesley, MA NPI 1912988189 Eumene Ching Pediatrics Physician · Wellesley Hills, MA NPI 1407832975 James Cooley Pediatrics Physician · Wellesley, MA NPI 1851377659 Wendy Chabot Pediatrics Physician · Wellesley, MA NPI 1861479115 Robert Levenson Pediatrics Physician · Wellesley, MA NPI 1477532950

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.