Derek Cheung, MD - Medicare Internal Medicine in San Marino, CA

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Derek Cheung, MD is a medicare enrolled "Internal Medicine" physician in San Marino, California. His current practice location is 375 Huntington Dr Ste G, San Marino, California. You can reach out to his office (for appointments etc.) via phone at (626) 441-4231.

Derek Cheung is licensed to practice in California (license number A158438) 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 1336671981.

Contact Information

Derek Cheung, MD
375 Huntington Dr Ste G,
San Marino, CA 91108-2357
(626) 441-4231
Not Available

Map and Direction




Physician's Profile

Full NameDerek Cheung
GenderMale
SpecialityInternal Medicine
Location375 Huntington Dr Ste G, San Marino, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1336671981
  • Provider Enumeration Date: 04/03/2017
  • Last Update Date: 01/22/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 1759700354
  • Enrollment ID: I20201001000404

Medical Identifiers

Medical identifiers for Derek Cheung such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1336671981NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine A158438 (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. Derek Cheung allows following entities to bill medicare on his behalf.
Entity NameNortheast Valley Health Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1629079009
PECOS PAC ID: 3173517323
Enrollment ID: O20040412001067
Entity NameThe Huntington Medical Foundation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1154467181
PECOS PAC ID: 4587631601
Enrollment ID: O20040923000968

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. Derek Cheung 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
Derek Cheung, MD
229 Florence Ave,
Monterey Park, CA 91755-2075

Ph: (661) 609-2978		Derek Cheung, MD
375 Huntington Dr Ste G,
San Marino, CA 91108-2357

Ph: (626) 441-4231

Reviews and Comments


Internal Medicine Doctors in San Marino, CA

Ms. Sabrina Hong, MD
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1946 Montrobles Pl, San Marino, CA 91108
Phone: 626-354-4058    
John Ginhsun Wear,
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 375 Huntington Dr Ste G, San Marino, CA 91108
Phone: 626-441-4231    
Dr. Samuel Kai Fong Zia, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1920 Alhambra Rd, San Marino, CA 91108
Phone: 626-282-5055    Fax: 626-282-5055
Dr. Thomas J Maxwell, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1505 Kensington Rd, San Marino, CA 91108
Phone: 626-449-2455    
Paul T Liu, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2233 Huntington Dr Ste 10, San Marino, CA 91108
Phone: 626-796-0821    Fax: 626-796-0619
Dr. Sonya M Ehresmann, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 375 Huntington Dr Ste G, San Marino, CA 91108
Phone: 626-441-4231    Fax: 626-441-0282

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.