Rex Y Wong, MD - Medicare Internal Medicine in Baldwin Park, CA

Rex Y Wong, MD is a medicare enrolled "Internal Medicine - Hematology & Oncology" physician in Baldwin Park, California. His current practice location is 1011 Baldwin Park Blvd, Baldwin Park, California. You can reach out to his office (for appointments etc.) via phone at (626) 851-1011.

Rex Y Wong is licensed to practice in California (license number A62964) 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 1992877229.

Contact Information

Rex Y Wong, MD
1011 Baldwin Park Blvd,
Baldwin Park, CA 91706-5806
(626) 851-1011
Not Available



Physician's Profile

Full NameRex Y Wong
GenderMale
SpecialityInternal Medicine - Hematology & Oncology
Location1011 Baldwin Park Blvd, Baldwin Park, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1992877229
  • Provider Enumeration Date: 11/14/2006
  • Last Update Date: 11/30/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 7416970306
  • Enrollment ID: I20060105000888

Medical Identifiers

Medical identifiers for Rex Y Wong such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1992877229NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RH0003XInternal Medicine - Hematology & Oncology A62964 (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 Y Wong 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

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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 Y Wong 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 Y Wong, MD
1011 Baldwin Park Blvd,
Baldwin Park, CA 91706-5806

Ph: (626) 851-1011
Rex Y Wong, MD
1011 Baldwin Park Blvd,
Baldwin Park, CA 91706-5806

Ph: (626) 851-1011

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Internal Medicine Doctors in Baldwin Park, CA

Arjang Kasravi,
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 1011 Baldwin Park Blvd, Baldwin Park, CA 91706
Phone: 800-780-1277    
Dr. Jennifer Jang, M.D.
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 1011 Baldwin Park Blvd, Baldwin Park, CA 91706
Phone: 626-813-4725    Fax: 626-813-4684
Rody A. Yoshinaka, MD
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 1011 Baldwin Park Blvd, Baldwin Park, CA 91706
Phone: 626-851-1011    
Carolyn Anne Hardy, MD
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 1011 Baldwin Park Blvd, Baldwin Park, CA 91706
Phone: 626-851-1011    
Dennis Matejka, MD
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 1011 Baldwin Park Blvd, Baldwin Park, CA 91706
Phone: 626-851-1011    
Dr. Jayon Kim, M.D.
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 1011 Baldwin Park Blvd, Baldwin Park, CA 91706
Phone: 626-851-1011    
Previn J De Silva, MD
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 1011 Baldwin Park Blvd, Baldwin Park, CA 91706
Phone: 626-851-1011    

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