Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

H.M. Sung M.D. Inc.

Preferred Provider Organization in Santa Ana, CA · enumerated 2006 · authorized official Alan Sung, Business Manager.

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

National Provider Identifier

1922062074

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Registry record

Entity type Organization (Type 2)

Legal business name H.M. Sung M.D. Inc.

Practice address 2621 S Bristol St, Suite 109, Santa Ana, CA, 92704

Phone (714) 754-0310

Enumeration date Apr 14, 2006

Last updated in NPPES Nov 23, 2010

Taxonomy & classification

305R00000X Preferred Provider Organization Managed Care Organizations · License A31399 (CA) Primary

Authorized official

Name Alan Sung

Title Business Manager

Phone (714) 754-0310

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 is H.M. Sung M.D. Inc. located?

The practice location on file with NPPES is in Santa Ana, CA.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2010-11-23. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-11-23.