Dr. Gregg Jonathan Berdy, MD

Dr. Berdy practices at Endoscopy Center of St. Louis in Saint Louis, Missouri.

Dr. Berdy's NPI, 1376541540, was assigned on July 12, 2005. Dr. Berdy graduated from Saint Louis University School of Medicine in 1983. Dr. Berdy holds Missouri license R1E17.

Dr. Berdy's primary practice is Endoscopy Center of St. Louis, at 12990 Manchester Rd, Saint Louis, MO 63131 in Saint Louis County. The practice phone is (314) 984-0550.

Dr. Berdy's primary practice is Endoscopy Center of St. Louis in Saint Louis, Missouri. Dr. Berdy is also affiliated with Missouri Baptist Sullivan Hospital. Dmand AI also links Dr. Berdy 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. Berdy practices, 2 sites in all. Vendor and product names are available with a free account.

Ophthalmology is Dr. Berdy's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Berdy is licensed in Missouri.

CMS data shows 3,789 Medicare services from Dr. Berdy across 20 procedure codes in 2024, for 550 Medicare patients. Medicare paid $175,156 for them.

CMS counts 550 Medicare patients who saw Dr. Berdy in 2026. The largest group is 65 to 74, with 275 patients. 75% of them have high cholesterol, and 70% have high blood pressure. Their average risk score is 1.01, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Berdy's median patient age at 73, with 61% women.

In 2026, Dr. Berdy wrote 2,528 Medicare Part D claims for 527 patients. 39% of them were for generic drugs. CMS names the drug for 2,391 of them, across 41 drugs with 11 or more claims each, at $1,480,966 in total drug cost. In 2023, CMS named 2,521 claims across 41 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 80 out of 100 for Dr. Berdy for performance year 2026, reported as part of a group. Dr. Berdy accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 80 procedures of cataract surgery by Dr. Berdy, more than 71% of the clinicians it reports for that procedure.

Dmand AI links 16 papers to Dr. Berdy, published from 2012 to 2025. 2024 was the busiest year, with 4. The most frequent topics are Tears, Ophthalmic Solutions and Dry Eye Syndromes. Dr. Berdy has published most often in Clin Ophthalmol. Dr. Berdy's most frequent co-authors are John Charles Meyer, MD, Joseph Bowers Ciolino, MD and Ehsan Sadri, MD.

Dmand AI links Dr. Berdy to 9 clinical trials, 2 of them phase 2 studies. Conditions studied include Dry Eye Syndromes, Keratoconus and Lacrimal Apparatus Diseases. Cxlusa sponsors the most, 2.

CMS Open Payments shows 926 general payments to Dr. Berdy from 34 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 44% of the total. Shire North American Group Inc paid the most, $92,596.

Dr. Berdy graduated from Saint Louis University School of Medicine in 1983.