Joseph Teng, DO - Medicare Internal Medicine in San Leandro, CA

Joseph Teng, DO is a medicare enrolled "Internal Medicine" physician in San Leandro, California. His current practice location is 2500 Merced St, San Leandro, California. You can reach out to his office (for appointments etc.) via phone at (510) 954-9972.

Joseph Teng is licensed to practice in California (license number 20A21523) 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 1619596897.

Contact Information

Joseph Teng, DO
2500 Merced St,
San Leandro, CA 94577-4201
(510) 954-9972
Not Available

Map and Direction




Physician's Profile

Full NameJoseph Teng
GenderMale
SpecialityInternal Medicine
Location2500 Merced St, San Leandro, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1619596897
  • Provider Enumeration Date: 04/08/2020
  • Last Update Date: 09/26/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 4284057456
  • Enrollment ID: I20230921002164

Medical Identifiers

Medical identifiers for Joseph Teng such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1619596897NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 20A21523 (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. Joseph Teng allows following entities to bill medicare on his behalf.
Entity NamePermanente Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1073606299
PECOS PAC ID: 8921910225
Enrollment ID: O20031104000710

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. Joseph Teng 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
Joseph Teng, DO
2500 Merced St,
San Leandro, CA 94577-4201

Ph: (510) 954-9972
Joseph Teng, DO
2500 Merced St,
San Leandro, CA 94577-4201

Ph: (510) 954-9972

Reviews and Comments


Internal Medicine Doctors in San Leandro, CA

Dr. Evelyn Junko Nakagawa, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2800 Benedict Dr, San Leandro, CA 94577
Phone: 415-233-3604    Fax: 415-295-5109
Jeffrey Silvers, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 13847 E 14th St, Suite 116, San Leandro, CA 94578
Phone: 510-895-0388    Fax: 510-895-0342
Dr. Asaf Shor, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2500 Merced St, San Leandro, CA 94577
Phone: 510-454-1000    
Dr. Arlen Randall Hoh, MD, MPH
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 15400 Foothill Blvd, San Leandro, CA 94578
Phone: 510-895-4288    Fax: 510-895-4285
Masood Younus,
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 2500 Merced St Bldg A1, San Leandro, CA 94577
Phone: 510-454-2434    
Tri Dang Do, MD
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 101 Callan Ave Ste 300, San Leandro, CA 94577
Phone: 510-300-5340    
Dr. Shraddha Prakash, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2500 Merced St, Kaiser Permanente, San Leandro, CA 94577
Phone: 510-454-5750    

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.