Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Harvard Vanguard Medical Associates

Q: What is the NPI number for Harvard Vanguard Medical Associates?

The NPI for Harvard Vanguard Medical Associates is 1528129129, a Type 2 (organization) record in the CMS NPPES registry.

Dentist in Chelmsford, MA · enumerated 2006 · authorized official Debra Geihsler, Chief Executive Officer.

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

National Provider Identifier

1528129129

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Registry record

Entity type Organization (Type 2)

Legal business name Harvard Vanguard Medical Associates

Practice address 228 Billerica Rd, Chelmsford, MA, 01824

Phone (978) 250-6340

Fax (978) 250-6354

Enumeration date Dec 13, 2006

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

122300000X Dentist Dental Providers Primary

Authorized official

Name Debra Geihsler

Title Chief Executive Officer

Phone (617) 559-8012

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

Who is the authorized official for Harvard Vanguard Medical Associates?

NPPES lists Debra Geihsler (Chief Executive Officer) as the authorized official for this organization.

What is the NPI number for Harvard Vanguard Medical Associates?

The NPI for Harvard Vanguard Medical Associates is 1528129129, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.