Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Stephen Markowitz

Q: What is the NPI number for Stephen Markowitz?

The NPI for Stephen Markowitz is 1801966288, a Type 2 (organization) record in the CMS NPPES registry.

Anesthesiology Physician in Seattle, WA · enumerated 2006 · authorized official Stephen Markowitz, President.

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

National Provider Identifier

1801966288

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Registry record

Entity type Organization (Type 2)

Legal business name Stephen Markowitz

Practice address 900 Terry Ave, 4th Floor, Seattle, WA, 98104

Phone (206) 382-1021

Enumeration date Nov 9, 2006

Last updated in NPPES Jan 30, 2013

Taxonomy & classification

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Stephen Markowitz

Title President

Phone (425) 353-3788

Other identifiers

Identifier	Type	State	Issuer
7056773	Medicaid	WA	-
0037961	Other	WA	L & I

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

What is the NPI number for Stephen Markowitz?

The NPI for Stephen Markowitz is 1801966288, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Stephen Markowitz?

NPPES lists Stephen Markowitz (President) as the authorized official for this organization.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-01-30.