Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Maritess Castillo Morales, MSN, RN, FNP-C

Family Nurse Practitioner in Fairfield, CA · enumerated 2012.

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

National Provider Identifier

1730433707

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Registry record

Entity type Individual (Type 1)

Name Maritess Castillo Morales

Credential MSN, RN, FNP-C

Sex Female

Practice address 1620 Pennsylvania Ave, Suite C, Fairfield, CA, 94533

Phone (707) 428-4878

Enumeration date Oct 30, 2012

Last updated in NPPES Jan 3, 2022

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 748784 (CA) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 22438 (CA) Primary

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

Other identifiers

Identifier	Type	State	Issuer
F1212223	Other	CA	AMERICAN ACADEMY OF NURSE PRACTITIONERS

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 Maritess Morales?

Maritess Morales 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 2022-01-03.