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

Yesim Yilmaz Demirdag, MD

Individual provider Allergy & Immunology Physician · NPI 1134330921

Yesim Yilmaz Demirdag, MD is an Allergy/Immunology in Irvine, California. Qualified in 1990, 36 years ago. Practices with Uc Regents, a 306-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
36
Licensed in
CA
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

821 Health Sciences Rd Medical Sciences I C-240
Irvine, CA 92697-9214
Phone: (949) 824-5818
Show map & directions

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

Specialties & licences

Allergy & Immunology Physician (primary) Taxonomy 207K00000X · Licence C166841 (CA)

Record details

NPI number1134330921
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 24, 2007
Last updated in NPPESAugust 27, 2020
Certification dateAugust 27, 2020

Medicare enrollment

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

Medicare specialtyALLERGY/IMMUNOLOGY
Medical schoolOTHER
Graduated 1990 (36 years in practice)
Group practice Uc Regents — 306 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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