Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Cristina Del Carmen Martinez, FNP-BC

Nurse Practitioner in Hackensack, NJ · enumerated 2010.

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

National Provider Identifier

1821304569

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Registry record

Entity type Individual (Type 1)

Name Cristina Del Carmen Martinez

Credential FNP-BC

Sex Female

Practice address Hackensack, NJ, 07601

Phone (551) 996-9150

Enumeration date Aug 18, 2010

Last updated in NPPES Sep 22, 2021

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 335859 (NY) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 5174861 (NY) Secondary

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 26NJ00516400 (NJ) Primary

Other identifiers

Identifier	Type	State	Issuer
00695941	Medicaid	NY	-

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 Cristina Martinez?

Cristina Martinez 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.

Other providers at this practice address

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Karan Omidvari Critical Care Medicine (Internal Medicine) Physician · Hackensack, NJ NPI 1962474742 Jonathan Shammash Internal Medicine Physician · Hackensack, NJ NPI 1518055896 Anna Broder Rheumatology Physician · Hackensack, NJ NPI 1144478496 Asena Bahce-Altuntas Rheumatology Physician · Hackensack, NJ NPI 1912278540 Waqas Rahman Internal Medicine Physician · Hackensack, NJ NPI 1699271346 James Topilow Rheumatology Physician · Hackensack, NJ NPI 1568968683

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-09-22.