Geoffrey Jay Tso, MD - Medicare Internal Medicine in Palo Alto, CA

Geoffrey Jay Tso, MD is a medicare enrolled "Internal Medicine" physician in Palo Alto, California. He went to Albert Einstein College Of Medicine Of Yeshiva University and graduated in 2012 and has 12 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Stanford Health Care and his current practice location is 300 Pasteur Dr, Palo Alto, California. You can reach out to his office (for appointments etc.) via phone at (650) 723-4000.

Geoffrey Jay Tso is licensed to practice in California (license number A128184) 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 1871859892.

Contact Information

Geoffrey Jay Tso, MD
300 Pasteur Dr,
Palo Alto, CA 94305-2200
(650) 723-4000
Not Available

Map and Direction




Physician's Profile

Full NameGeoffrey Jay Tso
GenderMale
SpecialityInternal Medicine
Experience12 Years
Location300 Pasteur Dr, Palo Alto, 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:
  • Geoffrey Jay Tso attended and graduated from Albert Einstein College Of Medicine Of Yeshiva University in 2012
  NPI Data:
  • NPI Number: 1871859892
  • Provider Enumeration Date: 04/03/2012
  • Last Update Date: 04/24/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 1759686728
  • Enrollment ID: I20160229002813

Medical Identifiers

Medical identifiers for Geoffrey Jay Tso such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1871859892NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2083C0008XPreventive Medicine - Clinical Informatics A128184 (California)Secondary
207R00000XInternal Medicine A128184 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Stanford Health CareStanford, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Stanford Health Care67097974912579

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. Geoffrey Jay Tso allows following entities to bill medicare on his behalf.
Entity NameStanford Health Care
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1437292927
PECOS PAC ID: 6709797491
Enrollment ID: O20031124000348

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. Geoffrey Jay Tso 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
Geoffrey Jay Tso, MD
300 Pasteur Dr,
Palo Alto, CA 94305-2200

Ph: () -
Geoffrey Jay Tso, MD
300 Pasteur Dr,
Palo Alto, CA 94305-2200

Ph: (650) 723-4000

Reviews and Comments


Internal Medicine Doctors in Palo Alto, CA

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Phone: 650-323-6614    

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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