Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Chan Sun Hwang, MD

Neuromuscular Medicine (Physical Medicine & Rehabilitation) Physician in Lakewood, WA · enumerated 2005.

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

National Provider Identifier

1861486367

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Registry record

Entity type Individual (Type 1)

Name Chan Sun Hwang

Credential MD

Sex Male

Practice address Lakewood, WA, 98499

Phone (253) 251-2551

Fax (253) 251-3197

Enumeration date Sep 12, 2005

Last updated in NPPES Nov 17, 2017

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

2081N0008X Neuromuscular Medicine (Physical Medicine & Rehabilitation) Physician Allopathic & Osteopathic Physicians · License 00035834 (WA) Primary

2081P2900X Pain Medicine (Physical Medicine & Rehabilitation) Physician Allopathic & Osteopathic Physicians · License MD00035834 (WA) Secondary

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
1114321	Medicaid	WA	-
0150123	Other	WA	STATE WORKERS' COMP NUMBR

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 1861486367 active?

Yes, as of the latest NPPES snapshot, NPI 1861486367 is active (record last updated 2017-11-17).

How do I verify Chan Hwang's NPI record?

Cross-check NPI 1861486367 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-11-17.