Dr. Daniel J. Gassert, MD

Dr. Gassert practices at St. Augustine Endoscopy Center in Saint Augustine, Florida.

Dr. Gassert's NPI, 1073575403, was assigned on April 3, 2006. Dr. Gassert graduated from New York University School of Medicine in 2000. Dr. Gassert holds Florida license ME0095376.

Dr. Gassert's primary practice is St. Augustine Endoscopy Center, at 40 Groover Loop Suite 100, Saint Augustine, FL 32086. The practice phone is (904) 824-6108.

Dr. Gassert's primary practice is St. Augustine Endoscopy Center in Saint Augustine, Florida. Dr. Gassert is also affiliated with UF Health Flagler Hospital. The medical group on file is Borland Groover. Dmand AI also links Dr. Gassert to 3 more hospitals, 2 group practices and clinics and 1 medical group, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gassert practices, 7 sites in all. Vendor and product names are available with a free account.

Gastroenterology is Dr. Gassert's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Gassert is board certified in gastroenterology by the American Board of Internal Medicine. Dr. Gassert is licensed in Florida.

Dmand AI lists acid reflux, chronic indigestion, chronic inflammatory bowel disease (IBD), cirrhosis of the liver, colonoscopy, fatty liver, gastroduodenitis and gastroenteritis among the conditions Dr. Gassert treats.

CMS data shows 1,320 Medicare services from Dr. Gassert across 14 procedure codes in 2024, for 699 Medicare patients. Medicare paid $130,094 for them.

CMS counts 699 Medicare patients who saw Dr. Gassert in 2024. The largest group is 65 to 74, with 364 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 9% are also on Medicaid. Their average risk score is 1.53, 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. Gassert's median patient age at 67, with 52% women.

In 2024, Dr. Gassert wrote 1,715 Medicare Part D claims for 531 patients. 82% of them were for generic drugs. CMS names the drug for 1,443 of them, across 27 drugs with 11 or more claims each, at $393,771 in total drug cost. In 2023, CMS named 1,593 claims across 33 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 79 out of 100 for Dr. Gassert for performance year 2024, reported as part of a group. Dr. Gassert accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 254 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Gassert, more than 93% of the clinicians it reports for that procedure.

Dmand AI links 3 papers to Dr. Gassert in 2007. Dr. Gassert's most frequent co-author is Lawrence J. Brandt, MD.

CMS Open Payments shows 625 general payments to Dr. Gassert from 48 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 90% of the total. Abbvie Inc. paid the most, $2,843.

Dr. Gassert graduated from New York University School of Medicine in 2000.

Dr. Gassert is in network with 20 carriers, including Aetna, Elevance and Excellus BlueCross BlueShield. HMO plans come from the most carriers, 11. Check the plan with the practice before a visit.