Rex T Wang, MD - Medicare Internal Medicine in Anaheim, CA

Rex T Wang, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Anaheim, California. His current practice location is 441 N Lakeview Ave, Anaheim, California. You can reach out to his office (for appointments etc.) via phone at (888) 988-2800.

Rex T Wang is licensed to practice in California (license number A76544) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1225109150.

Contact Information

Rex T Wang, MD
441 N Lakeview Ave,
Anaheim, CA 92807-3028
(888) 988-2800
Not Available

Map and Direction




Physician's Profile

Full NameRex T Wang
GenderMale
SpecialityInternal Medicine - Gastroenterology
Location441 N Lakeview Ave, Anaheim, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1225109150
  • Provider Enumeration Date: 11/13/2006
  • Last Update Date: 11/29/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 0749362507
  • Enrollment ID: I20080131000735

Medical Identifiers

Medical identifiers for Rex T Wang such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1225109150NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology A76544 (California)Primary

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. Rex T Wang 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. Rex T 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
Rex T Wang, MD
3460 E La Palma Ave,
Anaheim, CA 92806-2020

Ph: (888) 988-2800
Rex T Wang, MD
441 N Lakeview Ave,
Anaheim, CA 92807-3028

Ph: (888) 988-2800

Reviews and Comments


Internal Medicine Doctors in Anaheim, CA

Richard Eugene Hughes, M.D.
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Phone: 714-772-8282    Fax: 714-772-6493
Aleem A Syed, MD
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Practice Location: 1211 W La Palma Ave, Suite 702, Anaheim, CA 92801
Phone: 714-533-0300    Fax: 714-533-0700
Dr. Jagminder Singh Bhalla, M.D.
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Phone: 714-956-3160    Fax: 714-956-1188
Dr. Ashley E. Mires, M.D.
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Medicare: Accepting Medicare Assignments
Practice Location: 1211 W La Palma Ave, #207, Anaheim, CA 92801
Phone: 714-772-8282    Fax: 714-772-6493
Hyon Chong Seo, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 441 N Lakeview Ave, Anaheim, CA 92807
Phone: 888-988-2800    

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.