David Tseng, DO - Medicare Internal Medicine in San Leandro, CA

David Tseng, DO is a medicare enrolled "Internal Medicine" physician in San Leandro, California. He graduated from medical school in 2017 and has 7 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Alameda Health System and his current practice location is 13855 E 14th St, San Leandro, California. You can reach out to his office (for appointments etc.) via phone at (510) 357-6500.

David Tseng is licensed to practice in California (license number 20A17261) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1699200709.

Contact Information

David Tseng, DO
13855 E 14th St,
San Leandro, CA 94578-2600
(510) 357-6500
Not Available

Map and Direction




Physician's Profile

Full NameDavid Tseng
GenderMale
SpecialityInternal Medicine
Experience7 Years
Location13855 E 14th St, San Leandro, California
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • David Tseng graduated from medical school in 2017
  NPI Data:
  • NPI Number: 1699200709
  • Provider Enumeration Date: 04/26/2017
  • Last Update Date: 06/15/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 6204259401
  • Enrollment ID: I20200707000824

Medical Identifiers

Medical identifiers for David Tseng such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1699200709NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208M00000XHospitalist 20A17261 (California)Secondary
207R00000XInternal Medicine 20A17261 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Highland HospitalOakland, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Alameda Health System3779494521504

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. David Tseng allows following entities to bill medicare on his behalf.
Entity NameAlameda Health System
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1740332931
PECOS PAC ID: 3779494521
Enrollment ID: O20031110000764

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. David Tseng 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
David Tseng, DO
13855 E 14th St,
San Leandro, CA 94578-2611

Ph: (510) 357-6500
David Tseng, DO
13855 E 14th St,
San Leandro, CA 94578-2600

Ph: (510) 357-6500

Reviews and Comments


Internal Medicine Doctors in San Leandro, CA

Dr. Evelyn Junko Nakagawa, M.D.
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Medicare: Accepting Medicare Assignments
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Phone: 415-233-3604    Fax: 415-295-5109
Jeffrey Silvers, M.D.
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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.
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Phone: 510-454-1000    
Dr. Arlen Randall Hoh, MD, MPH
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Medicare: Not Enrolled in Medicare
Practice Location: 15400 Foothill Blvd, San Leandro, CA 94578
Phone: 510-895-4288    Fax: 510-895-4285
Masood Younus,
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Practice Location: 2500 Merced St Bldg A1, San Leandro, CA 94577
Phone: 510-454-2434    
Tri Dang Do, MD
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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).

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