Dr William Ang Go, MD - Medicare Internal Medicine in Lancaster, CA

Dr William Ang Go, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Lancaster, California. He graduated from medical school in 1991 and has 33 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Southern California Permanente Medical Group and his current practice location is 43112 15th St W, Lancaster, California. You can reach out to his office (for appointments etc.) via phone at (661) 726-2226.

Dr William Ang Go is licensed to practice in California (license number A62008) 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 1992972715.

Contact Information

Dr William Ang Go, MD
43112 15th St W,
Lancaster, CA 93534-6219
(661) 726-2226
Not Available

Map and Direction




Physician's Profile

Full NameDr William Ang Go
GenderMale
SpecialityInternal Medicine
Experience33 Years
Location43112 15th St W, Lancaster, 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 Ang Go graduated from medical school in 1991
  NPI Data:
  • NPI Number: 1992972715
  • Provider Enumeration Date: 05/12/2008
  • Last Update Date: 11/22/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 3476627084
  • Enrollment ID: I20080730000729

Medical Identifiers

Medical identifiers for Dr William Ang Go such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1992972715NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology A62008 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Antelope Valley HospitalLancaster, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Southern California Permanente Medical Group60027291757951

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 Ang Go allows following entities to bill medicare on his behalf.
Entity NameSouthern California Permanente Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1770515280
PECOS PAC ID: 6002729175
Enrollment ID: O20031110000678

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 Ang Go 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 Ang Go, MD
43112 15th St W,
Lancaster, CA 93534-6219

Ph: () -
Dr William Ang Go, MD
43112 15th St W,
Lancaster, CA 93534-6219

Ph: (661) 726-2226

Reviews and Comments


Internal Medicine Doctors in Lancaster, CA

Dr. Tanyanika Phillips, MD
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Zin Win, M.D.
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Phone: 661-726-2245    
Pye Aung,
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Practice Location: 1600 W Avenue J, Lancaster, CA 93534
Phone: 661-726-6254    

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.