Yesim Yilmaz Demirdag, MD - Medicare Allergy/immunology in Irvine, CA

Yesim Yilmaz Demirdag, MD is a medicare enrolled "Allergy & Immunology" physician in Irvine, California. She graduated from medical school in 1990 and has 34 years of diverse experience with area of expertise as Allergy/immunology. She is a member of the group practice Uc Regents and her current practice location is 821 Health Sciences Rd Medical Sciences I C-240, Irvine, California. You can reach out to her office (for appointments etc.) via phone at (949) 824-5818.

Yesim Yilmaz Demirdag is licensed to practice in California (license number C166841) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1134330921.

Contact Information

Yesim Yilmaz Demirdag, MD
821 Health Sciences Rd Medical Sciences I C-240,
Irvine, CA 92697-9214
(949) 824-5818
Not Available

Map and Direction




Physician's Profile

Full NameYesim Yilmaz Demirdag
GenderFemale
SpecialityAllergy/immunology
Experience34 Years
Location821 Health Sciences Rd Medical Sciences I C-240, Irvine, California
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Yesim Yilmaz Demirdag graduated from medical school in 1990
  NPI Data:
  • NPI Number: 1134330921
  • Provider Enumeration Date: 05/24/2007
  • Last Update Date: 08/27/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 2466507504
  • Enrollment ID: I20200421002761

Medical Identifiers

Medical identifiers for Yesim Yilmaz Demirdag such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1134330921NPI-NPPES
07225MedicaidLA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207K00000XAllergy & Immunology C166841 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
University Of California Irvine Medical CenterOrange, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Uc Regents7416869516197

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Yesim Yilmaz Demirdag allows following entities to bill medicare on her behalf.
Entity NameUc Regents
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1760430847
PECOS PAC ID: 7416869516
Enrollment ID: O20031118000906

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Yesim Yilmaz Demirdag is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Yesim Yilmaz Demirdag, MD
Po Box 9214, West Virginia University,
Morgantown, WV 26506-9214

Ph: (304) 293-1201
Yesim Yilmaz Demirdag, MD
821 Health Sciences Rd Medical Sciences I C-240,
Irvine, CA 92697-9214

Ph: (949) 824-5818

Reviews and Comments


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Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.