Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ray Hsu, M.D.

Pediatrics Physician in Orange, CA · enumerated 2010.

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

National Provider Identifier

1972807428

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Registry record

Entity type Individual (Type 1)

Name Ray Hsu

Credential M.D.

Sex Male

Practice address 505 S Main St Ste 525, Orange, CA, 92868

Phone (714) 456-5631

Enumeration date Dec 27, 2010

Last updated in NPPES Dec 6, 2021

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License A128881 (CA) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Ray Hsu?

Ray Hsu is registered in NPPES with the primary taxonomy of Pediatrics 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.

Other providers at this practice address

Browse all →

Shiloni Bhambani Student in an Organized Health Care Education/Training Program · Orange, CA NPI 1932439288 Ngegha Abongwa Pediatrics Physician · Orange, CA NPI 1598063034 Iris Kuo Pediatrics Physician · Orange, CA NPI 1891094652 Dayna Chin Pediatrics Physician · Orange, CA NPI 1356631790 Kacey Cox Pediatrics Physician · Orange, CA NPI 1487948675 Dean Todd Pediatrics Physician · Orange, CA NPI 1053673392 Sarah Brennan Pediatrics Physician · Orange, CA NPI 1366887762 Sarah Kim Student in an Organized Health Care Education/Training Program · Orange, CA NPI 1811317191

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-12-06.