Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Donald L Zimmermann, MD

Pain Medicine (Anesthesiology) Physician in Kirkland, WA · enumerated 2006.

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

National Provider Identifier

1942254990

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Registry record

Entity type Individual (Type 1)

Name Donald L Zimmermann

Credential MD

Sex Male

Practice address 12040 Ne 128th St, Kirkland, WA, 98034

Phone (425) 899-1000

Enumeration date May 22, 2006

Last updated in NPPES Oct 16, 2007

Taxonomy & licenses

207LP2900X Pain Medicine (Anesthesiology) Physician Allopathic & Osteopathic Physicians · License MD00032652 (WA) Primary

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
2I5353	Other	WA	REGENCE 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Donald Zimmermann?

The National Provider Identifier (NPI) for Donald Zimmermann is 1942254990, a Type 1 (individual) record in the CMS NPPES registry.

Where does Donald Zimmermann practice?

The practice location on file with NPPES is in Kirkland, WA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-10-16.