Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Ismail Deniz, MD

Individual provider Addiction Psychiatry Physician · NPI 1619437704

Ismail Deniz, MD is a Psychiatry in Irvine, California. Qualified in 2013, 13 years ago. Practices with Hiawatha Harris MD Inc, a 12-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
13
Licensed in
CA
In the registry since
2019
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

15615 Alton Pkwy Ste 220
Irvine, CA 92618-7305
Phone: (949) 665-9136
Fax: (310) 912-6743
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence 194547 (CA)
Addiction Psychiatry Physician Taxonomy 2084P0802X · Licence 194547 (CA)
Child & Adolescent Psychiatry Physician Taxonomy 2084P0804X · Licence 194547 (CA)

Record details

NPI number1619437704
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 23, 2019
Last updated in NPPESJuly 14, 2025
Certification dateJuly 14, 2025
Mailing address757 Westwood Plz, Los Angeles, CA 90095-7419

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPSYCHIATRY
Medical schoolOTHER
Graduated 2013 (13 years in practice)
Group practice Hiawatha Harris Md Inc. — 12 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount