Dr. Mark S. Eisner, MD

Dr. Eisner practices at Wiregrass Ranch Special Procedures Center in Zephyrhills, Florida.

Dr. Eisner's NPI, 1902815103, was assigned on August 5, 2006. Dr. Eisner graduated from George Washington University School of Medicine and Health Sciences in 1985. Dr. Eisner holds Florida license ME57600.

Dr. Eisner's primary practice is Wiregrass Ranch Special Procedures Center, at 38135 Market Square, Zephyrhills, FL 33542. The practice phone is (813) 780-8266.

Dr. Eisner's primary practice is Wiregrass Ranch Special Procedures Center in Zephyrhills, Florida. Dr. Eisner is also affiliated with AdventHealth Zephyrhills. The medical group on file is Florida Medical Clinic Orlando Health. Dmand AI also links Dr. Eisner to 2 more hospitals, 3 group practices and clinics and 2 medical groups, each named with a free account.

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

Gastroenterology is Dr. Eisner's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Eisner is board certified in gastroenterology by the American Board of Internal Medicine. Dmand AI has Dr. Eisner's licenses on file in 2 states: Florida and Maryland.

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. Eisner treats.

CMS data shows 1,217 Medicare services from Dr. Eisner across 14 procedure codes in 2024, for 452 Medicare patients. Medicare paid $121,051 for them.

CMS counts 452 Medicare patients who saw Dr. Eisner in 2024. The largest group is 75 to 84, with 201 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 6% are also on Medicaid. Their average risk score is 1.51, 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. Eisner's median patient age at 71, with 58% women.

In 2024, Dr. Eisner wrote 2,600 Medicare Part D claims for 956 patients. 81% of them were for generic drugs. CMS names the drug for 2,422 of them, across 42 drugs with 11 or more claims each, at $572,403 in total drug cost. In 2023, CMS named 2,286 claims across 42 drugs.

Dr. Eisner accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Eisner as offering telehealth. CMS counts 139 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Eisner, more than 83% of the clinicians it reports for that procedure.

Dmand AI links Dr. Eisner to 4 clinical trials. 1 is still active or recruiting. Conditions studied include Colitis, Ulcerative, Colitis and Crohn Disease. Eli Lilly and Company sponsors the most, 4. Open Payments lists research payments to Dr. Eisner that name 1 trial.

CMS Open Payments shows 1,167 general payments to Dr. Eisner from 58 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 93% of the total. Abbvie Inc. paid the most, $5,864. It also lists 1 research payment totaling $150 in 2021, naming 1 clinical trial.

Dmand AI lists 1 award for Dr. Eisner, most recently CMS Stage 1 EHR in 2012.

Dr. Eisner graduated from George Washington University School of Medicine and Health Sciences in 1985.

Dr. Eisner is in network with 18 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.