Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Felicitas Fandreyer, FNP

Nurse Practitioner in Fitchburg, MA · enumerated 2016.

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

National Provider Identifier

1548713308

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Registry record

Entity type Individual (Type 1)

Name Felicitas Fandreyer

Credential FNP

Sex Female

Practice address 881 Main St, Fitchburg, MA, 01420

Phone (978) 342-9781

Enumeration date Jul 28, 2016

Last updated in NPPES Apr 23, 2026

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License RN2286273 (MA) Primary

FNP · Family Nurse Practitioner: A nurse practitioner certified in family practice across the lifespan. About the FNP credential

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 specialty is Felicitas Fandreyer?

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

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-04-23.