Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Alexander Chase Peterson, MD

Emergency Medicine Physician in Lexington, KY · enumerated 2020.

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

National Provider Identifier

1447887849

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Registry record

Entity type Individual (Type 1)

Name Dr. Alexander Chase Peterson

Credential MD

Sex Male

Practice address 1000 S Limestone, Lexington, KY, 40536

Phone (859) 323-5901

Fax (859) 323-3040

Enumeration date Mar 25, 2020

Last updated in NPPES Sep 29, 2023

Taxonomy & licenses

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

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 56857 (KY) Secondary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 14518 (SD) 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.

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Frequently asked questions

Where does Alexander Peterson practice?

The practice location on file with NPPES is in Lexington, KY. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Alexander Peterson?

The National Provider Identifier (NPI) for Alexander Peterson is 1447887849, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-09-29.