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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gregory T Koo, MD

General Practice Physician in Lexington, KY · enumerated 2006 · practices at Healthfirst Bluegrass Inc..

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

National Provider Identifier

1205895943

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Registry record

Entity type Individual (Type 1)
Name Gregory T Koo
Credential MD
Sex Male
Practice address 1401 Harrodsburg Rd Ste B165, Lexington, KY, 40504
Phone (859) 288-2425
Fax (859) 288-7510
Enumeration date Mar 21, 2006
Last updated in NPPES Jul 15, 2025

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 33614 (KY) Secondary
207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 33614 (KY) Secondary
208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License 33614 (KY) 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
64363146 Medicaid KY —

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

Is NPI 1205895943 active?
Yes — as of the latest NPPES snapshot, NPI 1205895943 is active (record last updated 2025-07-15).
How do I verify Gregory Koo's NPI record?
Cross-check NPI 1205895943 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 2025-07-15.