Dr. Charles Derek Cohn, MD

Dr. Cohn practices at Fredericksburg Eye Associates in Fredericksburg, Texas.

Dr. Cohn's NPI, 1003044058, was assigned on June 29, 2009. Dr. Cohn graduated from UTMB Health in 2009. Dr. Cohn's Texas license number on file is P0187.

Dr. Cohn's primary practice is Fredericksburg Eye Associates, at 755 S Washington St, Fredericksburg, TX 78624 in Gillespie County. The practice phone is (830) 997-6535.

Dr. Cohn's primary practice is Fredericksburg Eye Associates in Fredericksburg, Texas. Dr. Cohn is also affiliated with Methodist Hospital Hill Country. Dmand AI also links Dr. Cohn to 1 more group practice or clinic and 1 medical group, each named with a free account.

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

Ophthalmology is Dr. Cohn's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Cohn is board certified in ophthalmology by the American Board of Ophthalmology. Dr. Cohn has a license on file in Texas.

Dmand AI lists age-related macular degeneration, cataract, cataract surgery with lens implant, cold sores or genital herpes, conjunctivitis, eye infection or inflammation, eyelid inflammation and glaucoma among the conditions Dr. Cohn treats.

CMS data shows 4,654 Medicare services from Dr. Cohn across 23 procedure codes in 2024, for 1,588 Medicare patients. Medicare paid $448,327 for them.

CMS counts 1,588 Medicare patients who saw Dr. Cohn in 2024. The largest group is 75 to 84, with 686 patients. 75% of them have high cholesterol, and 71% have high blood pressure. 1% are also on Medicaid. Their average risk score is 0.92, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Cohn's median patient age at 76, with 54% women.

In 2024, Dr. Cohn wrote 1,043 Medicare Part D claims for 259 patients. 71% of them were for generic drugs. CMS names the drug for 941 of them, across 14 drugs with 11 or more claims each, at $74,575 in total drug cost. In 2023, CMS named 837 claims across 12 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 75 out of 100 for Dr. Cohn for performance year 2024, reported as part of a group. Dr. Cohn accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 494 procedures of cataract surgery by Dr. Cohn, more than 95% of the clinicians it reports for that procedure.

Removal or shaving of skin growth: 1 to 10 procedures (CMS shows small counts as a range)

Dmand AI links 1 paper to Dr. Cohn in 2011. Dr. Cohn's most frequent co-authors are Jay Cameron Bradley, MD and Peter Wei-Ju Wu, MD.

Dmand AI links Dr. Cohn to 10 clinical trials, 4 of them phase 2 studies. 9 are still active or recruiting. Conditions studied include Adenocarcinoma of Lung, Biliary Atresia and Low Back Pain.

CMS Open Payments shows 106 general payments to Dr. Cohn from 15 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 80% of the total. Johnson & Johnson Surgical Vision, Inc. paid the most, $3,300.

Dr. Cohn graduated from UTMB Health in 2009.

Dr. Cohn is in network with 19 carriers, including Elevance, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.