Dr. Karl Tscha-Ning Sun, MD

Dr. Sun practices at San Diego Cardiology Associates in San Diego, California.

Dr. Sun's NPI, 1235131061, was assigned on August 11, 2005. Dr. Sun graduated from University of Zurich Faculty of Medicine in 1982. Dr. Sun holds California license A68612.

Dr. Sun's primary practice is San Diego Cardiology Associates, at 5555 Reservoir Drive, San Diego, CA 92120. The practice phone is (619) 287-7060.

Dr. Sun's primary practice is San Diego Cardiology Associates in San Diego, California. Dr. Sun is also affiliated with Sharp Grossmont Hospital. The medical group on file is Emergency and Acute Care Medical Corporation. Dmand AI also links Dr. Sun to 1 more group practice or clinic, named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sun practices, 3 sites in all. Vendor and product names are available with a free account.

Cardiovascular disease is Dr. Sun's primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dr. Sun is board certified in internal medicine by the American Board of Internal Medicine. Dr. Sun is licensed in California.

Dmand AI lists aneurysm, atrial fibrillation and flutter, cardiomyopathy, chronic hypertension, coronary artery disease, heart failure, heart valve disorders and high cholesterol among the conditions Dr. Sun treats.

CMS data shows 4,403 Medicare services from Dr. Sun across 22 procedure codes in 2024, for 384 Medicare patients. Medicare paid $277,877 for them.

CMS counts 384 Medicare patients who saw Dr. Sun in 2024. The largest group is 75 to 84, with 148 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 36% are also on Medicaid. Their average risk score is 2.25, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Sun's median patient age at 71, with 50% women.

In 2024, Dr. Sun wrote 2,009 Medicare Part D claims for 200 patients. 84% of them were for generic drugs. CMS names the drug for 1,713 of them, across 43 drugs with 11 or more claims each, at $235,871 in total drug cost. In 2023, CMS named 1,502 claims across 38 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Sun for performance year 2024, reported as part of a group. Dr. Sun accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Dmand AI links 3 papers to Dr. Sun. The most frequent topics are Tomography, Emission-Computed. Dr. Sun's most frequent co-author is Carl K. Hoh, MD.

Dmand AI links Dr. Sun to 1 clinical trial.

CMS Open Payments shows 354 general payments to Dr. Sun from 42 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 90% of the total. Novartis Pharmaceuticals Corporation paid the most, $908.

Dmand AI lists 4 awards for Dr. Sun, most recently CMS Stage 1 EHR in 2011.

Dr. Sun graduated from University of Zurich Faculty of Medicine in 1982. Dr. Sun is a member of ACC.

Dr. Sun is in network with 8 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.