Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Dolnak, D.O. Inc

Psychiatry Physician in National City, CA · enumerated 2010 · authorized official Douglas Dolnak, Owner.

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

National Provider Identifier

1346542362

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Registry record

Entity type Organization (Type 2)

Legal business name Dolnak, D.O. Inc

Practice address 1908 Sweetwater Rd, National City, CA, 91950

Phone (619) 327-0146

Fax (619) 327-0150

Enumeration date Nov 23, 2010

Last updated in NPPES Nov 23, 2010

Taxonomy & classification

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 20A6059 (CA) Primary

Authorized official

Name Douglas Dolnak

Title Owner

Phone (619) 327-0146

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 Dolnak, D.O. Inc located?

The practice location on file with NPPES is in National City, CA.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2010-11-23. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-11-23.