Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Margaret G. Richardson, M.D.

Anatomic Pathology & Clinical Pathology Physician in Tacoma, WA · enumerated 2006.

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

National Provider Identifier

1952478448

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Registry record

Entity type Individual (Type 1)

Name Dr. Margaret G. Richardson

Credential M.D.

Sex Female

Practice address 2202 S Cedar St, #340, Tacoma, WA, 98405

Phone (253) 503-2559

Fax (253) 503-8513

Enumeration date Nov 29, 2006

Last updated in NPPES Apr 8, 2014

Taxonomy & licenses

207ZP0102X Anatomic Pathology & Clinical Pathology Physician Allopathic & Osteopathic Physicians · License 37665 (AZ) Secondary

207ZP0102X Anatomic Pathology & Clinical Pathology Physician Allopathic & Osteopathic Physicians · License MD000222102 (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
37665	Other	AZ	AZ LICENSE
311963	Medicaid	AZ	-
MD00022102	Other	WA	WA LICENSE
8471757	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 Margaret Richardson's NPI record?

Cross-check NPI 1952478448 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1952478448 active?

Yes, as of the latest NPPES snapshot, NPI 1952478448 is active (record last updated 2014-04-08).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-04-08.