William Wang, DO - Medicare Internal Medicine in Whittier, CA

William Wang, DO is a medicare enrolled "Internal Medicine" physician in Whittier, California. He graduated from medical school in 2015 and has 9 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Wellmed Medical Group Pa and his current practice location is 15725 Whittier Blvd Ste 400, Whittier, California. You can reach out to his office (for appointments etc.) via phone at (562) 947-1669.

William Wang is licensed to practice in California (license number 20A22387) 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 1508213646.

Contact Information

William Wang, DO
15725 Whittier Blvd Ste 400,
Whittier, CA 90603-2338
(562) 947-1669
(562) 464-5134

Map and Direction




Physician's Profile

Full NameWilliam Wang
GenderMale
SpecialityInternal Medicine
Experience9 Years
Location15725 Whittier Blvd Ste 400, Whittier, 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:
  • William Wang graduated from medical school in 2015
  NPI Data:
  • NPI Number: 1508213646
  • Provider Enumeration Date: 05/18/2016
  • Last Update Date: 03/22/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 8426389214
  • Enrollment ID: I20191009000705

Medical Identifiers

Medical identifiers for William Wang such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1508213646NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 20A22387 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Christus Homecare SpohnCorpus christi, TXHome health agency

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Wellmed Medical Group Pa4880657386693

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. William Wang allows following entities to bill medicare on his behalf.
Entity NameWellmed Medical Group Pa
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1437156486
PECOS PAC ID: 4880657386
Enrollment ID: O20041105000519

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. William Wang 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
William Wang, DO
12713 Park St,
Cerritos, CA 90703-1143

Ph: (562) 248-9536
William Wang, DO
15725 Whittier Blvd Ste 400,
Whittier, CA 90603-2338

Ph: (562) 947-1669

Reviews and Comments


Internal Medicine Doctors in Whittier, CA

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D O Cotton, MD
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Minggen Kuo, M.D.
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Dr. Shahram Ghanem, M.D.
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Practice Location: 14350 Whittier Blvd Ste 230, Whittier, CA 90605
Phone: 562-698-7070    Fax: 562-698-3588

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.