John Z Wang, MD, PHD - Medicare Internal Medicine in West Covina, CA

John Z Wang, MD, PHD is a medicare enrolled "Internal Medicine" physician in West Covina, California. He graduated from medical school in 1989 and has 35 years of diverse experience with area of expertise as Internal Medicine. His current practice location is 1535 W Merced Ave, Suite 206, West Covina, California. You can reach out to his office (for appointments etc.) via phone at (626) 338-0811.

John Z Wang is licensed to practice in California (license number A67229) 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 1285747931.

Contact Information

John Z Wang, MD, PHD
1535 W Merced Ave, Suite 206,
West Covina, CA 91790-3404
(626) 338-0811
(626) 338-0922

Map and Direction




Physician's Profile

Full NameJohn Z Wang
GenderMale
SpecialityInternal Medicine
Experience35 Years
Location1535 W Merced Ave, West Covina, 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:
  • John Z Wang graduated from medical school in 1989
  NPI Data:
  • NPI Number: 1285747931
  • Provider Enumeration Date: 08/16/2006
  • Last Update Date: 07/08/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 4385671528
  • Enrollment ID: I20050726001260

Medical Identifiers

Medical identifiers for John Z Wang such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1285747931NPI-NPPES
00A672290MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine A67229 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Emanate Health Inter-community HospitalCovina, 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. John Z Wang allows following entities to bill medicare on his behalf.
Entity NameJohn Z Wang Md Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1861457327
PECOS PAC ID: 9032146279
Enrollment ID: O20050720000201

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. John Z 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
John Z Wang, MD, PHD
1535 W Merced Ave, Suite 206,
West Covina, CA 91790-3404

Ph: (626) 338-0811
John Z Wang, MD, PHD
1535 W Merced Ave, Suite 206,
West Covina, CA 91790-3404

Ph: (626) 338-0811

Reviews and Comments


Internal Medicine Doctors in West Covina, CA

Seung Sue Cua, MD
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 1433 W Merced Ave, Ste 114-8, West Covina, CA 91790
Phone: 626-960-4939    Fax: 626-960-5520
Fu-cheng Chuang, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1115 S Sunset Ave Ste 200, West Covina, CA 91790
Phone: 626-732-8390    Fax: 626-732-8399
Mr. Mumtaz Akram, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 906 S Sunset Ave, West Covina, CA 91790
Phone: 626-960-9455    Fax: 626-960-0833
Dr. Michelle El-hajjaoui, DO
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 1115 S Sunset Ave Ste 200, West Covina, CA 91790
Phone: 626-732-8390    Fax: 626-631-0951
Mr. Hee Yong Oh, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1433 W Merced Ave Ste 207, West Covina, CA 91790
Phone: 626-962-2421    Fax: 626-962-8345
Dr. Kenneth Tye, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1250 S Sunset Ave, West Covina, CA 91790
Phone: 626-960-6588    Fax: 626-338-0688

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.