ISMAIL DENIZ MD
NPI 1619437704
Psychiatry & Neurology - Psychiatry in Irvine, CA

Active since March 23, 2019PECOS EnrolledAccepts Medicare Assignment
15615 ALTON PKWY STE 220, IRVINE, CA 92618(949) 665-9136(310) 912-6743 Get Directions Write a Review

NPPES record last updated: July 14, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jun 10, 2024, Mar 23, 2019 (2 updates tracked since 2019).

About Ismail Deniz Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ISMAIL DENIZ MD (NPI 1619437704) is an individual psychiatry provider in Irvine, California, licensed in California (194547) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS and is a graduate of Other (2013).

NPPES Registry Identity

NPI1619437704
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameISMAIL DENIZCredential: MD
Location Address15615 ALTON PKWY STE 220Irvine, CA 92618-7305
Mailing Address757 Westwood PlzLos Angeles, CA 90095-7419
Fax(310) 912-6743
Sole ProprietorNo
Medical School CMSOtherGraduated 2013
Enumeration DateMarch 23, 2019
Last NPPES UpdateJuly 14, 20252 updates tracked since enumeration
NPPES CertifiedJuly 14, 2025
NPI 1619437704 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License Licensed in CA · 194547
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
Also ListedPsychiatry & Neurology · Addiction PsychiatryTaxonomy 2084P0802X · License 194547 (CA)
Also ListedPsychiatry & Neurology · Child & Adolescent PsychiatryTaxonomy 2084P0804X · License 194547 (CA)
15615 ALTON PKWY STE 220, Irvine, CA 92618

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Ismail Deniz Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9436649472
PECOS Enrollment IDI20251107000118
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92618 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$187.60 typical visit price
range $62.96 – $187.60
Typical copayment $46.90 (range $15.74 – $46.90)
Most-billed visit code 99205
Established Patient
$77.96 typical visit price
range $20.84 – $153.61
Typical copayment $19.49 (range $5.21 – $38.40)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 10

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Psychiatry & Neurology (Psychiatry)
15615 ALTON PKWY STE 220
IRVINE, CA 92618
Psychiatry & Neurology (Psychiatry)
15615 ALTON PKWY STE 220
IRVINE, CA 92618
Counselor (Addiction (Substance Use Disorder))
15615 ALTON PKWY STE 220
IRVINE, CA 92618
Psychologist (Clinical)
15615 ALTON PKWY STE 220
IRVINE, CA 92618
Nurse Practitioner (Psychiatric/Mental Health)
15615 ALTON PKWY STE 220
IRVINE, CA 92618
Social Worker (Clinical)
15615 ALTON PKWY STE 220
IRVINE, CA 92618
Psychiatry & Neurology (Psychiatry)
15615 ALTON PKWY STE 220
IRVINE, CA 92618
Registered Nurse (Psychiatric/Mental Health)
15615 ALTON PKWY STE 220
IRVINE, CA 92618

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Ismail Deniz's NPI number?

The NPI number for Ismail Deniz is 1619437704. It was assigned to this individual provider in the NPPES registry on March 23, 2019.

Where is Ismail Deniz located?

Ismail Deniz practices at 15615 Alton Pkwy Ste 220, Irvine, CA 92618. The listed phone number is (949) 665-9136.

What is Ismail Deniz's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Ismail Deniz enrolled in Medicare?

Yes. Ismail Deniz is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Ismail Deniz was last updated on July 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.