Wynnshang Chen Sun, MD - Medicare Internal Medicine in La Jolla, CA

Wynnshang Chen Sun, MD is a medicare enrolled "Internal Medicine" physician in La Jolla, California. He went to University Of Virginia School Of Medicine and graduated in 1996 and has 28 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Ximed Hospitalists, Inc. and his current practice location is 9850 Genesee Ave, Ste 870, La Jolla, California. You can reach out to his office (for appointments etc.) via phone at (858) 452-7040.

Wynnshang Chen Sun is licensed to practice in California (license number A63389) 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 1801806732.

Contact Information

Wynnshang Chen Sun, MD
9850 Genesee Ave, Ste 870,
La Jolla, CA 92037
(858) 452-7040
(858) 452-7137

Map and Direction




Physician's Profile

Full NameWynnshang Chen Sun
GenderMale
SpecialityInternal Medicine
Experience28 Years
Location9850 Genesee Ave, La Jolla, 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:
  • Wynnshang Chen Sun attended and graduated from University Of Virginia School Of Medicine in 1996
  NPI Data:
  • NPI Number: 1801806732
  • Provider Enumeration Date: 08/09/2006
  • Last Update Date: 02/07/2013
  Medicare PECOS Information:
  • PECOS PAC ID: 5395640726
  • Enrollment ID: I20031126000685

Medical Identifiers

Medical identifiers for Wynnshang Chen Sun such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1801806732NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine A63389 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Scripps Memorial Hospital La JollaLa jolla, CAHospital
Scripps Green HospitalLa jolla, CAHospital
Sharp Coronado Hospital And Hlthcr CtrCoronado, CAHospital
Scripps Memorial Hospital - EncinitasEncinitas, CAHospital

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. Wynnshang Chen Sun allows following entities to bill medicare on his behalf.
Entity NameXimed Hospitalists, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1831124791
PECOS PAC ID: 7214939222
Enrollment ID: O20070205000252
Entity NameWynnshang C Sun Apc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1245426519
PECOS PAC ID: 8628136512
Enrollment ID: O20081021000848

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. Wynnshang Chen 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
Wynnshang Chen Sun, MD
9850 Genesee Ave, Ste 870,
La Jolla, CA 92037

Ph: (858) 452-7040
Wynnshang Chen Sun, MD
9850 Genesee Ave, Ste 870,
La Jolla, CA 92037

Ph: (858) 452-7040

Reviews and Comments


Internal Medicine Doctors in La Jolla, CA

Dr. John Sturdivant Andrews, MD
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 1223 Via Barranca, La Jolla, CA 92037
Phone: 858-775-1976    
Dr. Mark C Adrian, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 9850 Genesee Ave, Suite 355, La Jolla, CA 92037
Phone: 858-202-0011    
Dr. Erminia M. Guarneri, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 10666 N Torrey Pines Rd, La Jolla, CA 92037
Phone: 858-554-3330    Fax: 858-784-5933
Dr. Eric Hong, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 9834 Genesee Ave, Suite 300, La Jolla, CA 92037
Phone: 858-824-2900    Fax: 858-824-2910
Katrina Deleon, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 10666 N Torrey Pines Rd, La Jolla, CA 92037
Phone: 858-554-6158    
Abhishek Gadre, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 9300 Campus Point Dr, La Jolla, CA 92037
Phone: 858-657-7118    
Mira Maria John, MD
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 9300 Campus Point Dr, La Jolla, CA 92037
Phone: 800-926-8273    

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.