NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Su Hyon Yi, M.D.

Internal Medicine Physician in Lakewood, CA · enumerated 2006 · practices at Optumcare Management, LLC.

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

National Provider Identifier

1902867476

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Registry record

Entity type Individual (Type 1)
Name Ms. Su Hyon Yi
Credential M.D.
Sex Female
Practice address 5001 Lakewood Blvd, Lakewood, CA, 90712
Phone (562) 361-5650
Enumeration date Mar 31, 2006
Last updated in NPPES Jan 17, 2026

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License A73734 (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 Su Yi?
Su Yi is registered in NPPES with the primary taxonomy of Internal Medicine 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-01-17.