John Terence Tan So, MD - Medicare Internal Medicine in Downey, CA

John Terence Tan So, MD is a medicare enrolled "Internal Medicine" physician in Downey, California. His current practice location is 10441 Lakewood Blvd Ste Ab, Downey, California. You can reach out to his office (for appointments etc.) via phone at (562) 869-1070.

John Terence Tan So is licensed to practice in California (license number A98802) 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 1801924295.

Contact Information

John Terence Tan So, MD
10441 Lakewood Blvd Ste Ab,
Downey, CA 90241-2744
(562) 869-1070
(562) 286-8777

Map and Direction




Physician's Profile

Full NameJohn Terence Tan So
GenderMale
SpecialityInternal Medicine
Location10441 Lakewood Blvd Ste Ab, Downey, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1801924295
  • Provider Enumeration Date: 02/28/2007
  • Last Update Date: 03/21/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 0446345011
  • Enrollment ID: I20070927000959

Medical Identifiers

Medical identifiers for John Terence Tan So such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1801924295NPI-NPPES
A98802OtherCAMEDICAL LICENSE

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine A98802 (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. John Terence Tan So allows following entities to bill medicare on his behalf.
Entity NameCaremore Health Plan
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1386048429
PECOS PAC ID: 6406170067
Enrollment ID: O20190221000529
Entity NameCaremore Health Medical Partners West, Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1073110607
PECOS PAC ID: 8921419813
Enrollment ID: O20201125000882

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 Terence Tan So 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 Terence Tan So, MD
Po Box 1088,
Artesia, CA 90702-1088

Ph: (714) 443-4512
John Terence Tan So, MD
10441 Lakewood Blvd Ste Ab,
Downey, CA 90241-2744

Ph: (562) 869-1070

Reviews and Comments


Internal Medicine Doctors in Downey, CA

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Practice Location: 11525 Brookshire Ave, Suite 400, Downey, CA 90241
Phone: 562-869-4497    Fax: 562-869-6317

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.