NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Jennifer Leoniak D.O., Inc

Infectious Disease Physician in Turlock, CA · enumerated 2015 · authorized official Jamie Dole, Manger.

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

National Provider Identifier

1235510710

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Jennifer Leoniak D.O., Inc
Practice address 920 Delbon Ave, Turlock, CA, 95382
Fax (209) 748-4850
Enumeration date Jun 10, 2015
Last updated in NPPES Mar 27, 2025

Taxonomy & classification

207RI0200X Infectious Disease Physician Allopathic & Osteopathic Physicians · License 13410 (CA) Primary

Authorized official

Name Jamie Dole
Title Manger

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 is Jennifer Leoniak D.O., Inc located?
The practice location on file with NPPES is in Turlock, CA.
How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2025-03-27. Verify at npiregistry.cms.hhs.gov.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-03-27.