Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Aaron Hartley, MD

Student in an Organized Health Care Education/Training Program in Buffalo, NY · enumerated 2015.

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

National Provider Identifier

1609253400

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Registry record

Entity type Individual (Type 1)

Name Aaron Hartley

Credential MD

Sex Male

Practice address 77 Goodell Street, Suite 240 T, Buffalo, NY, 14203

Phone (716) 816-7258

Enumeration date Apr 30, 2015

Last updated in NPPES Apr 30, 2015

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care 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

How do I verify Aaron Hartley's NPI record?

Cross-check NPI 1609253400 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1609253400 active?

Yes, as of the latest NPPES snapshot, NPI 1609253400 is active (record last updated 2015-04-30).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-04-30.