Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Aj Flaherty, M.D.

Otolaryngology Physician in Seattle, WA · enumerated 2015.

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

National Provider Identifier

1578940433

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Registry record

Entity type Individual (Type 1)

Name Aj Flaherty

Credential M.D.

Sex Female

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

Phone (206) 341-0895

Enumeration date Apr 29, 2015

Last updated in NPPES Jun 19, 2024

Taxonomy & licenses

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians · License 125068533 (IL) Secondary

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians · License MD61157352 (WA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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

Is NPI 1578940433 active?

Yes, as of the latest NPPES snapshot, NPI 1578940433 is active (record last updated 2024-06-19).

How do I verify Aj Flaherty's NPI record?

Cross-check NPI 1578940433 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-06-19.