Kaiwen Sun, MD - Medicare Internal Medicine in Chula Vista, CA

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Kaiwen Sun, MD is a medicare enrolled "Internal Medicine - Cardiovascular Disease" physician in Chula Vista, California. His current practice location is 765 Medical Center Ct Ste 211, Chula Vista, California. You can reach out to his office (for appointments etc.) via phone at (619) 616-2100.

Kaiwen Sun is licensed to practice in California (license number A177099) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1255891479.

Contact Information

Kaiwen Sun, MD
765 Medical Center Ct Ste 211,
Chula Vista, CA 91911-6600
(619) 616-2100
Not Available

Map and Direction




Physician's Profile

Full NameKaiwen Sun
GenderMale
SpecialityInternal Medicine - Cardiovascular Disease
Location765 Medical Center Ct Ste 211, Chula Vista, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1255891479
  • Provider Enumeration Date: 03/22/2019
  • Last Update Date: 08/04/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 8224446513
  • Enrollment ID: I20220720000779

Medical Identifiers

Medical identifiers for Kaiwen Sun such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1255891479NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RC0000XInternal Medicine - Cardiovascular Disease A177099 (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. Kaiwen Sun allows following entities to bill medicare on his behalf.
Entity NameRegents of the University of California
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1760552343
PECOS PAC ID: 4284547274
Enrollment ID: O20031106000389
Entity NameUniversity of California San Francisco
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1861578973
PECOS PAC ID: 4486567229
Enrollment ID: O20031212000897
Entity NameUCSF Medical Group Business Services
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1477624104
PECOS PAC ID: 3779497870
Enrollment ID: O20040622001513
Entity NameCardiovascular Institute of San Diego Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1558518753
PECOS PAC ID: 0749337160
Enrollment ID: O20090421000751

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. Kaiwen 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
Kaiwen Sun, MD
765 Medical Center Ct Ste 211,
Chula Vista, CA 91911-6600

Ph: Not Available		Kaiwen Sun, MD
765 Medical Center Ct Ste 211,
Chula Vista, CA 91911-6600

Ph: (619) 616-2100

Reviews and Comments


Internal Medicine Doctors in Chula Vista, CA

Dr. Perry V Montoya, M.D
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 525 3rd Ave, Chula Vista, CA 91910
Phone: 858-499-2600    Fax: 619-585-4353
John S Videen, MD
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 752 Medical Center Ct, Suite 302, Chula Vista, CA 91911
Phone: 619-421-3361    Fax: 619-656-8936
Daniel Cepin, M.D.
Cardiovascular Disease
Medicare: Medicare Enrolled
Practice Location: 890 Eastlake Pkwy, Suite 205, Chula Vista, CA 91914
Phone: 619-482-0300    Fax: 619-482-0959
Kenneth Burton Johnson, MD
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 769 Medical Center Ct, Suite 202, Chula Vista, CA 91911
Phone: 619-482-8430    Fax: 619-482-8005
Dr. Michael Sonbaty, M.D.
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 1400 E Palomar St, Chula Vista, CA 91913
Phone: 858-499-2616    
Moe Zaw, M.D.
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 480 H St, Chula Vista, CA 91910
Phone: 858-939-6570    
Sara Khandan, MD
Cardiovascular Disease
Medicare: Medicare Enrolled
Practice Location: 835 Third Ave Ste A, Chula Vista, CA 91911
Phone: 619-425-7755    Fax: 619-425-2138

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.