Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alex Michael Slaby, M.D

Psychiatry Physician in Allentown, PA · enumerated 2017.

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

National Provider Identifier

1265964340

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Registry record

Entity type Individual (Type 1)

Name Alex Michael Slaby

Credential M.D

Sex Male

Practice address 451 Chew St Ste 306, Allentown, PA, 18102

Phone (484) 658-4437

Enumeration date Mar 29, 2017

Last updated in NPPES Jun 5, 2026

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License MD468470 (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

How do I verify Alex Slaby's NPI record?

Cross-check NPI 1265964340 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1265964340 active?

Yes, as of the latest NPPES snapshot, NPI 1265964340 is active (record last updated 2026-06-05).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-05.