Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Celia Mercado Ona, M.D.

Q: What is the NPI number for Celia Ona?

The National Provider Identifier (NPI) for Celia Ona is 1639236243, a Type 1 (individual) record in the CMS NPPES registry.

Psychiatry Physician in Ewa Beach, HI · enumerated 2007 · practices at Sutter Health Pacific.

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

National Provider Identifier

1639236243

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Registry record

Entity type Individual (Type 1)

Name Dr. Celia Mercado Ona

Credential M.D.

Sex Female

Practice address 91-2301 Fort Weaver Rd, Ewa Beach, HI, 96706

Phone (808) 671-8511

Fax (808) 677-2570

Enumeration date Jan 2, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License MD10438 (HI) Primary

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

Other identifiers

Identifier	Type	State	Issuer
078161	Other	HI	UNIVERSITY HEALTH ALLIANC
252394-01	Medicaid	HI	-
990298651-96706-E049	Other	HI	TRICARE
252394	Other	HI	ALOHACARE
MD10438-01	Other	HI	MDX HAWAII

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 Celia Ona practice?

The practice location on file with NPPES is in Ewa Beach, HI. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Celia Ona?

The National Provider Identifier (NPI) for Celia Ona is 1639236243, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.