Tom S Cheng, MD - Medicare Internal Medicine in Vallejo, CA

Tom S Cheng, MD is a medicare enrolled "Hospitalist" physician in Vallejo, California. He went to New York Medical College and graduated in 1999 and has 25 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Permanente Medical Group Inc and his current practice location is 975 Sereno Dr, Vallejo, California. You can reach out to his office (for appointments etc.) via phone at (707) 651-1000.

Tom S Cheng is licensed to practice in California (license number A74037) 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 1215015102.

Contact Information

Tom S Cheng, MD
975 Sereno Dr,
Vallejo, CA 94589-2441
(707) 651-1000
Not Available

Map and Direction




Physician's Profile

Full NameTom S Cheng
GenderMale
SpecialityInternal Medicine
Experience25 Years
Location975 Sereno Dr, Vallejo, 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:
  • Tom S Cheng attended and graduated from New York Medical College in 1999
  NPI Data:
  • NPI Number: 1215015102
  • Provider Enumeration Date: 11/01/2006
  • Last Update Date: 12/03/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 9436347572
  • Enrollment ID: I20101216000330

Medical Identifiers

Medical identifiers for Tom S Cheng such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1215015102NPI-NPPES
00A740370MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208M00000XHospitalist A74037 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Kaiser Foundation HospitalSan rafael, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Permanente Medical Group Inc89219102258376

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. Tom S Cheng 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. Tom S Cheng 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
Tom S Cheng, MD
1800 Harrison St Fl 7,
Oakland, CA 94612-3466

Ph: (510) 625-6262
Tom S Cheng, MD
975 Sereno Dr,
Vallejo, CA 94589-2441

Ph: (707) 651-1000

Reviews and Comments


Hospitalist Doctors in Vallejo, CA

Kenneston Carr, MD
Hospitalist
Medicare: Medicare Enrolled
Practice Location: 975 Sereno Dr, Vallejo, CA 94589
Phone: 707-651-1000    
Ine Maria George, MD
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 975 Sereno Dr, Vallejo, CA 94589
Phone: 707-651-1000    
Michael S. Clark, MD
Hospitalist
Medicare: Not Enrolled in Medicare
Practice Location: 975 Sereno Dr, Vallejo, CA 94589
Phone: 707-651-1000    
Kimhai N. Lam, MD
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 975 Sereno Dr, Vallejo, CA 94589
Phone: 707-651-1000    
Chase T. Lambrecht, DO
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 975 Sereno Dr, Vallejo, CA 94589
Phone: 707-651-1000    
Scot P. Johnson, MD
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 975 Sereno Dr, Vallejo, CA 94589
Phone: 707-651-1000    

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.