NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Michael Ryan Lenihan Jr., PA-C

Surgical Physician Assistant in Chula Vista, CA · enumerated 2014 · practices at Daniel B Cullan II MD Inc.

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

National Provider Identifier

1174921183

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mr. Michael Ryan Lenihan Jr.
Credential PA-C
Sex Male
Practice address 955 Lane Ave Ste 200, Chula Vista, CA, 91914
Fax (619) 421-3557
Enumeration date Dec 8, 2014
Last updated in NPPES Jun 16, 2021

Taxonomy & licenses

363AS0400X Surgical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 52066 (CA) 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 Michael Lenihan practice?
The practice location on file with NPPES is in Chula Vista, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Michael Lenihan?
The National Provider Identifier (NPI) for Michael Lenihan is 1174921183, 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 2021-06-16.