NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Joseph M Flynn, D.O., MPH

Medical Oncology Physician in Louisville, KY · enumerated 2006.

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

National Provider Identifier

1518939933

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Joseph M Flynn
Credential D.O., MPH
Sex Male
Practice address 676 S Floyd St Ste 200, Louisville, KY, 40202
Fax (502) 629-4445
Enumeration date Feb 2, 2006
Last updated in NPPES Jul 23, 2020

Taxonomy & licenses

207RH0000X Hematology (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 34009024 (OH) Secondary
207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License 34009024 (OH) Secondary
207RX0202X Medical Oncology Physician Allopathic & Osteopathic Physicians · License TP195 (KY) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier Type State Issuer
2730585 Medicaid OH -

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

Where does Joseph Flynn practice?
The practice location on file with NPPES is in Louisville, KY. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Joseph Flynn?
The National Provider Identifier (NPI) for Joseph Flynn is 1518939933, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-07-23.