Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ismail Deniz, MD

Psychiatry Physician in Irvine, CA · enumerated 2019.

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

National Provider Identifier

1619437704

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Registry record

Entity type Individual (Type 1)

Name Ismail Deniz

Credential MD

Sex Male

Practice address 15615 Alton Pkwy Ste 220, Irvine, CA, 92618

Phone (949) 665-9136

Fax (310) 912-6743

Enumeration date Mar 23, 2019

Last updated in NPPES Jul 14, 2025

Taxonomy & licenses

2084P0802X Addiction Psychiatry Physician Allopathic & Osteopathic Physicians · License 194547 (CA) Secondary

2084P0804X Child & Adolescent Psychiatry Physician Allopathic & Osteopathic Physicians · License 194547 (CA) Secondary

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 194547 (CA) 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

What specialty is Ismail Deniz?

Ismail Deniz is registered in NPPES with the primary taxonomy of Psychiatry Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-07-14.