Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Melissa Han-Yo Chung, MD

Obesity Medicine (Preventive Medicine) Physician in Santa Monica, CA · enumerated 2018.

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

National Provider Identifier

1285123265

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Registry record

Entity type Individual (Type 1)

Name Melissa Han-Yo Chung

Credential MD

Sex Female

Practice address 1304 15th St Ste 102, Santa Monica, CA, 90404

Phone (310) 825-8173

Fax (310) 206-3607

Enumeration date May 6, 2018

Last updated in NPPES Jun 23, 2026

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License A164037 (CA) Secondary

2083B0002X Obesity Medicine (Preventive Medicine) Physician Allopathic & Osteopathic Physicians · License A164037 (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

Is NPI 1285123265 active?

Yes, as of the latest NPPES snapshot, NPI 1285123265 is active (record last updated 2026-06-23).

How do I verify Melissa Chung's NPI record?

Cross-check NPI 1285123265 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-23.