Dr Won Kye Yu, MD - Medicare Gastroenterology in Tustin, CA

Dr Won Kye Yu, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Tustin, California. He went to Temple University School Of Medicine and graduated in 2000 and has 24 years of diverse experience with area of expertise as Gastroenterology. His current practice location is 17400 Irvine Blvd Ste F, Tustin, California. You can reach out to his office (for appointments etc.) via phone at (714) 937-9400.

Dr Won Kye Yu is licensed to practice in California (license number A77275) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1720065303.

Contact Information

Dr Won Kye Yu, MD
17400 Irvine Blvd Ste F,
Tustin, CA 92780-3030
(714) 937-9400
(714) 937-9404

Map and Direction




Physician's Profile

Full NameDr Won Kye Yu
GenderMale
SpecialityGastroenterology
Experience24 Years
Location17400 Irvine Blvd Ste F, Tustin, California
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Won Kye Yu attended and graduated from Temple University School Of Medicine in 2000
  NPI Data:
  • NPI Number: 1720065303
  • Provider Enumeration Date: 12/27/2005
  • Last Update Date: 09/28/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 5092798090
  • Enrollment ID: I20040610001081

Medical Identifiers

Medical identifiers for Dr Won Kye Yu such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1720065303NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology A77275 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
St Joseph HospitalOrange, CAHospital

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. Dr Won Kye Yu allows following entities to bill medicare on his behalf.
Entity NameWon K Yu Md Mph Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1538334289
PECOS PAC ID: 1153485032
Enrollment ID: O20090122000247

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. Dr Won Kye Yu 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
Dr Won Kye Yu, MD
17400 Irvine Blvd Ste F,
Tustin, CA 92780-3030

Ph: (714) 937-9400
Dr Won Kye Yu, MD
17400 Irvine Blvd Ste F,
Tustin, CA 92780-3030

Ph: (714) 937-9400

Reviews and Comments


Internal Medicine Doctors in Tustin, CA

Dr. Huong T Duong, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 17400 Irvine Blvd, Suite F, Tustin, CA 92780
Phone: 714-838-5610    
Dr. Susan L Ban, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 17400 Irvine Blvd, Suite F, Tustin, CA 92780
Phone: 714-838-5610    
Jeremy Lam, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 2492 Walnut Ave Ste 100, Tustin, CA 92780
Phone: 714-709-8000    Fax: 714-709-8080
Dr. Thomas C Hwang, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 17400 Irvine Blvd, Suite F, Tustin, CA 92780
Phone: 714-838-5610    
Dr. James A Grimes, M.D.
Gastroenterology
Medicare: Not Enrolled in Medicare
Practice Location: 17400 Irvine Blvd, Suite F, Tustin, CA 92780
Phone: 714-838-5610    
Dr. Pin-hung Hsieh, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 13522 Newport Ave Ste 102, Tustin, CA 92780
Phone: 714-573-8200    Fax: 714-573-9401
Madonna A Nicolai, CFNP
Gastroenterology
Medicare: Not Enrolled in Medicare
Practice Location: 14351 Myford Rd, Suite B, Tustin, CA 92780
Phone: 714-550-9990    Fax: 714-550-1226

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.