Dr. John Davis Clark III, MD

Dr. Clark practices at UCSD Hillcrest Medical Center in San Diego, California.

Dr. Clark's NPI, 1467713800, was assigned on June 1, 2012. Dr. Clark graduated from University of Miami, Miller School of Medicine in 2011. Dr. Clark holds California license A122704.

Dr. Clark's primary practice is UCSD Hillcrest Medical Center, at 200 W Arbor Dr, San Diego, CA 92103 in San Diego County. The practice phone is (619) 543-6222.

Dr. Clark's primary practice is UCSD Hillcrest Medical Center in San Diego, California. Dr. Clark is also affiliated with Hillcrest Medical Center. The medical group on file is University of Texas Southwestern Medical Center. Dmand AI also links Dr. Clark to 1 more hospital and 2 medical groups, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Clark practices, 2 sites in all. Vendor and product names are available with a free account.

Internal medicine is Dr. Clark's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Clark is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Clark's licenses on file in 2 states: California and Texas.

Dmand AI lists adjustment disease, arthritis, atrial fibrillation and flutter, chronic diabetes, chronic hypertension, chronic inflammatory bowel disease (IBD), chronic kidney disease and cold sores or genital herpes among the conditions Dr. Clark treats.

CMS data shows 152 Medicare services from Dr. Clark across 3 procedure codes in 2024, all of them office visits, for 126 Medicare patients. Medicare paid $12,783 for them. Every service was in an office.

CMS counts 126 Medicare patients who saw Dr. Clark in 2024. The largest group is 65 to 74, with 53 patients. 75% of them have high cholesterol, and 71% have high blood pressure. 22% are also on Medicaid. Their average risk score is 1.72, 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. Clark's median patient age at 67, with 56% women.

In 2024, Dr. Clark wrote 1,275 Medicare Part D claims for 219 patients. 84% of them were for generic drugs. CMS names the drug for 838 of them, across 30 drugs with 11 or more claims each, at $105,827 in total drug cost. In 2023, CMS named 2,023 claims across 59 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 91 out of 100 for Dr. Clark for performance year 2024, reported as part of a group. Dr. Clark accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Dmand AI links 15 papers to Dr. Clark, published from 2008 to 2024. 2011 was the busiest year, with 2. The most frequent topics are Nutrition Surveys, Tobacco Smoke Pollution and Cotinine. Dr. Clark has published most often in J Occup Environ Med. Dr. Clark's most frequent co-authors are David P. Lee, MD, MPH, Lora E. Fleming, MD and Mujeeb A. Basit, MD.

CMS Open Payments shows 8 general payments to Dr. Clark from 5 drug and device companies from 2019 to 2025. Grants make up the largest share, 82% of the total. Sanofi and Genzyme US Companies paid the most, $1,086.

Dmand AI lists 1 award for Dr. Clark, most recently Best Doctors - Internal Medicine in 2022.

Dr. Clark graduated from University of Miami, Miller School of Medicine in 2011.

Dr. Clark is in network with 6 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.