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

Ms. Marietta Felicia Martin, R.N

Adult Psychiatric/Mental Health Registered Nurse in East Patchogue, NY · enumerated 2016.

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

National Provider Identifier

1235582255

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Registry record

Entity type Individual (Type 1)

Name Ms. Marietta Felicia Martin

Credential R.N

Sex Female

Practice address East Patchogue, NY, 11772

Phone (631) 394-1970

Fax (631) 394-1970

Enumeration date Jul 14, 2016

Last updated in NPPES Jul 14, 2016

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

Taxonomy & licenses

163WP0809X Adult Psychiatric/Mental Health Registered Nurse Nursing Service Providers · License 360323 (NY) Primary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN 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

Where does Marietta Martin practice?

The practice location on file with NPPES is in East Patchogue, NY. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Marietta Martin?

The National Provider Identifier (NPI) for Marietta Martin is 1235582255, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-07-14.