Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Marguerite S Patzer, NP

Family Nurse Practitioner in Norwell, MA · enumerated 2012.

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

National Provider Identifier

1871852053

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Registry record

Entity type Individual (Type 1)

Name Mrs. Marguerite S Patzer

Credential NP

Sex Female

Practice address 75 Washington St, Norwell, MA, 02061

Phone (781) 878-5200

Enumeration date May 9, 2012

Last updated in NPPES Jun 13, 2013

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License RN274917 (MA) Primary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP credential

Other identifiers

Identifier	Type	State	Issuer
042297845	Other	-	MUTI-PLAN - PCHC
110095087A	Medicaid	MA	-
1871852053	Other	MA	BCBSMA
042297845	Other	-	TRICARE
1871852053	Other	-	FALLON

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.

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Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Marguerite Patzer?

Marguerite Patzer is registered in NPPES with the primary taxonomy of Family Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-06-13.