Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Winchester Women'S Health Care, P.C.

Q: What is the NPI number for Winchester Women'S Health Care, P.C.?

The NPI for Winchester Women'S Health Care, P.C. is 1720188261, a Type 2 (organization) record in the CMS NPPES registry.

Clinic/Center in Andover, MA · enumerated 2006 · authorized official Maryann Millar, M.D..

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

National Provider Identifier

1720188261

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Registry record

Entity type Organization (Type 2)

Legal business name Winchester Women'S Health Care, P.C.

Practice address 27 Main St Ste Ul1, Andover, MA, 01810

Phone (781) 933-9993

Fax (781) 933-5711

Enumeration date Sep 24, 2006

Last updated in NPPES Jun 18, 2021

Taxonomy & classification

261Q00000X Clinic/Center Ambulatory Health Care Facilities · License 075885 (MA) Primary

Authorized official

Name Maryann Millar

Title M.D.

Phone (781) 933-9993

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 Winchester Women'S Health Care, P.C.?

NPPES lists Maryann Millar (M.D.) as the authorized official for this organization.

What is the NPI number for Winchester Women'S Health Care, P.C.?

The NPI for Winchester Women'S Health Care, P.C. is 1720188261, a Type 2 (organization) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-06-18.