Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Clarence K Chong, CRNA

Anesthesiology Physician in Seattle, WA · enumerated 2006.

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

National Provider Identifier

1669445995

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Registry record

Entity type Individual (Type 1)

Name Clarence K Chong

Credential CRNA

Sex Male

Practice address 1100 9th Ave, Seattle, WA, 98101

Phone (206) 223-6600

Enumeration date Feb 8, 2006

Last updated in NPPES Apr 7, 2008

Taxonomy & licenses

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License AP30003642 (WA) Primary

CRNA · Certified Registered Nurse Anesthetist: An advanced practice nurse specializing in anesthesia care. About the CRNA credential

Other identifiers

Identifier	Type	State	Issuer
9619271	Medicaid	WA	-
CL2631	Other	WA	INDIVIDUAL BLUE SHIELD

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.

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Frequently asked questions

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.

What specialty is Clarence Chong?

Clarence Chong is registered in NPPES with the primary taxonomy of Anesthesiology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-04-07.