Dr Chao Sun, MD - Medicare General Practice in Pleasanton, CA

Dr Chao Sun, MD is a medicare enrolled "Preventive Medicine - Occupational Medicine" physician in Pleasanton, California. He graduated from medical school in 1983 and has 41 years of diverse experience with area of expertise as General Practice. His current practice location is 5700 Stoneridge Mall Rd Ste 100, Pleasanton, California. You can reach out to his office (for appointments etc.) via phone at (925) 915-9530.

Dr Chao Sun is licensed to practice in California (license number A101860) and he also participates in the medicare program. He may accept medicare assignments (which means he may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance) and his NPI Number is 1013118884.

Contact Information

Dr Chao Sun, MD
5700 Stoneridge Mall Rd Ste 100,
Pleasanton, CA 94588-2872
(925) 915-9530
Not Available

Map and Direction




Physician's Profile

Full NameDr Chao Sun
GenderMale
SpecialityGeneral Practice
Experience41 Years
Location5700 Stoneridge Mall Rd Ste 100, Pleasanton, California
Accepts Medicare AssignmentsMay be. He may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Chao Sun graduated from medical school in 1983
  NPI Data:
  • NPI Number: 1013118884
  • Provider Enumeration Date: 05/30/2007
  • Last Update Date: 08/21/2012
  Medicare PECOS Information:
  • PECOS PAC ID: 7113000787
  • Enrollment ID: I20080206000312

Medical Identifiers

Medical identifiers for Dr Chao Sun such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1013118884NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2083X0100XPreventive Medicine - Occupational Medicine A101860 (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. Dr Chao Sun allows following entities to bill medicare on his behalf.
Entity NameExpress Medicine Urgent Care, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1578818696
PECOS PAC ID: 2062661572
Enrollment ID: O20120927000035

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. Dr Chao Sun 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
Dr Chao Sun, MD
770 Mason St,
Vacaville, CA 95688-4646

Ph: (707) 454-5800
Dr Chao Sun, MD
5700 Stoneridge Mall Rd Ste 100,
Pleasanton, CA 94588-2872

Ph: (925) 915-9530

Reviews and Comments


Preventive Medicine Doctors in Pleasanton, CA

Dr. Stephen Reese Nord, MD
Preventive Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 5635 W Las Positas Blvd, Suite 401, Pleasanton, CA 94588
Phone: 925-520-0055    Fax: 925-520-0099
David Peter Discher, MD
Preventive Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 2781 Vista Diablo Ct, Pleasanton, CA 94566
Phone: 925-426-8264    Fax: 925-426-8264
Margaret C Ford, MD
Preventive Medicine
Medicare: Medicare Enrolled
Practice Location: 5311 Hopyard Rd, Pleasanton, CA 94588
Phone: 000-000-0000    
Dr. Susan Piros Larson, MD, MPH
Preventive Medicine
Medicare: Medicare Enrolled
Practice Location: 1020 Serpentine Ln Ste 115, Pleasanton, CA 94566
Phone: 650-954-0044    
Ms. Diana Leigh Hasenpflug, ATC
Preventive Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1155 Santa Rita Rd, Pleasanton, CA 94566
Phone: 925-895-9244    
Neetu S Trivedi, THERAPY DIR.
Preventive Medicine
Medicare: Medicare Enrolled
Practice Location: 5980 Stoneridge Dr Ste 100, Pleasanton, CA 94588
Phone: 925-847-8833    

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.