Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Leonard Sobolewski

Certified Registered Nurse Anesthetist in Lakewood, CO · enumerated 2007.

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

National Provider Identifier

1326250507

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Registry record

Entity type Individual (Type 1)

Name Leonard Sobolewski

Sex Male

Practice address 325 S Teller St Ste 200, Lakewood, CO, 80226

Phone (303) 268-4040

Fax (303) 736-4147

Enumeration date May 3, 2007

Last updated in NPPES Sep 11, 2025

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 120567 (CO) Secondary

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License 020620 (CO) Primary

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 Leonard Sobolewski practice?

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

What is the NPI number for Leonard Sobolewski?

The National Provider Identifier (NPI) for Leonard Sobolewski is 1326250507, 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 2025-09-11.