Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Aleksander William Keller, MD

Emergency Medicine Physician in Pittsburgh, PA · enumerated 2020.

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

National Provider Identifier

1043849771

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Mr. Aleksander William Keller

Credential MD

Sex Male

Practice address 200 Lothrop St, Pittsburgh, PA, 15213

Phone (412) 647-3333

Enumeration date Apr 4, 2020

Last updated in NPPES May 20, 2024

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License MD480557 (PA) 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

Where does Aleksander Keller practice?

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

What is the NPI number for Aleksander Keller?

The National Provider Identifier (NPI) for Aleksander Keller is 1043849771, 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 2024-05-20.