Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Fermina M Mazzella, MD

Hematology (Pathology) Physician in Newark, NJ · enumerated 2005.

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

National Provider Identifier

1275522344

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Registry record

Entity type Individual (Type 1)

Name Fermina M Mazzella

Credential MD

Sex Female

Practice address 150 Bergen St, Room C-102, Newark, NJ, 07103

Phone (973) 972-4619

Fax (973) 972-3199

Enumeration date Oct 20, 2005

Last updated in NPPES Sep 11, 2025

Taxonomy & licenses

207ZP0102X Anatomic Pathology & Clinical Pathology Physician Allopathic & Osteopathic Physicians · License 25MA08151200 (NJ) Secondary

207ZH0000X Hematology (Pathology) Physician Allopathic & Osteopathic Physicians · License 25MA08151200 (NJ) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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.

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Frequently asked questions

What specialty is Fermina Mazzella?

Fermina Mazzella is registered in NPPES with the primary taxonomy of Hematology (Pathology) Physician. 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 2025-09-11.