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

Christopher David Merifield, MD

Pain Medicine (Anesthesiology) Physician in Seattle, WA · enumerated 2005.

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

National Provider Identifier

1811978976

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Registry record

Entity type Individual (Type 1)

Name Christopher David Merifield

Credential MD

Sex Male

Practice address Seattle, WA, 98122

Phone (206) 386-2013

Fax (206) 386-2149

Enumeration date Nov 7, 2005

Last updated in NPPES Jun 28, 2018

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

Taxonomy & licenses

208VP0014X Interventional Pain Medicine Physician Allopathic & Osteopathic Physicians · License MD00040503 (WA) Secondary

207LP2900X Pain Medicine (Anesthesiology) Physician Allopathic & Osteopathic Physicians · License MD00040503 (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
8024507	Medicaid	WA	-
1034757	Medicaid	WA	-

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

How do I verify Christopher Merifield's NPI record?

Cross-check NPI 1811978976 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1811978976 active?

Yes, as of the latest NPPES snapshot, NPI 1811978976 is active (record last updated 2018-06-28).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-06-28.