Dr William I Han, MD - Medicare Obstetrics/gynecology in Fountain Valley, CA

Dr William I Han, MD is a medicare enrolled "Obstetrics & Gynecology - Female Pelvic Medicine And Reconstructive Surgery" physician in Fountain Valley, California. He graduated from medical school in 1975 and has 49 years of diverse experience with area of expertise as Obstetrics/gynecology. His current practice location is 17150 Euclid St Ste 220, Fountain Valley, California. You can reach out to his office (for appointments etc.) via phone at (714) 444-3030.

Dr William I Han is licensed to practice in California (license number A38218) 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 1043300114.

Contact Information

Dr William I Han, MD
17150 Euclid St Ste 220,
Fountain Valley, CA 92708-4092
(714) 444-3030
(949) 419-2515

Map and Direction




Physician's Profile

Full NameDr William I Han
GenderMale
SpecialityObstetrics/gynecology
Experience49 Years
Location17150 Euclid St Ste 220, Fountain Valley, 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 William I Han graduated from medical school in 1975
  NPI Data:
  • NPI Number: 1043300114
  • Provider Enumeration Date: 10/12/2006
  • Last Update Date: 07/21/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 5890864904
  • Enrollment ID: I20080515000307

Medical Identifiers

Medical identifiers for Dr William I Han such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1043300114NPI-NPPES
00A382180MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207VF0040XObstetrics & Gynecology - Female Pelvic Medicine And Reconstructive Surgery A38218 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Fountain Valley Regional Hospital & Medical CenterFountain valley, 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 William I Han allows following entities to bill medicare on his behalf.
Entity NameWilliam I. Han, M.d. Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1831381664
PECOS PAC ID: 5496824500
Enrollment ID: O20080515000341

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 William I Han 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 William I Han, MD
17150 Euclid St Ste 220,
Fountain Valley, CA 92708-4092

Ph: (714) 444-3030
Dr William I Han, MD
17150 Euclid St Ste 220,
Fountain Valley, CA 92708-4092

Ph: (714) 444-3030

Reviews and Comments


Obstetrics & Gynecology Doctors in Fountain Valley, CA

Dr. Michael Jordan Vizcarra, M.D.
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 11180 Warner Ave, Suite 455, Fountain Valley, CA 92708
Phone: 714-556-0536    Fax: 714-435-9640
Dr. Cynthia Arlene Cork, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 11180 Warner Avenue, Suite 455, Fountain Valley, CA 92708
Phone: 714-556-0536    Fax: 714-435-9640
Dr. Kevin Khai Tuan Tieu, MD
Obstetrics & Gynecology
Medicare: May Accept Medicare Assignments
Practice Location: 16543 Brookhurst St, Fountain Valley, CA 92708
Phone: 714-418-9749    Fax: 714-418-1047
Dr. Jamie E Kim, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 18111 Brookhurst St #4450, Fountain Valley, CA 92708
Phone: 714-848-2383    Fax: 714-848-4083
Eleanor Senseney Hawkins, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 9940 Talbert Ave, Suite 303, Fountain Valley, CA 92708
Phone: 714-378-5606    Fax: 714-378-5621
Erica Dickson, DO
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 11160 Warner Ave Ste 301, Fountain Valley, CA 92708
Phone: 714-210-5665    Fax: 714-210-0231

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.