Dr. Gregory Mark Brown, MD

Dr. Brown practices at Internal Medicine Associates of Lake County in Leesburg, Florida.

Dr. Brown's NPI, 1386647956, was assigned on May 27, 2005. Dr. Brown graduated from Yale School of Medicine in 1988. Dr. Brown holds Florida license ME0058899.

Dr. Brown's primary practice is Internal Medicine Associates of Lake County, at 619 W Dixie Ave, Leesburg, FL 34748-2602. The practice phone is (352) 314-2424.

Dr. Brown's primary practice is Internal Medicine Associates of Lake County in Leesburg, Florida. Dr. Brown is also affiliated with UF Health Leesburg Hospital. The medical group on file is Legacy Healthcare Services. Dmand AI also links Dr. Brown to 2 more hospitals, 5 home health agencies and 1 therapy and rehab clinic, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Brown practices, 10 sites in all. Vendor and product names are available with a free account.

Internal medicine is Dr. Brown's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Brown is licensed in Florida.

Dmand AI lists acid reflux, acute gastroduodenitis, acute sinusitis, acute skin infection, adjustment disease, aneurysm, anxiety and arteritis among the conditions Dr. Brown treats.

CMS data shows 3,108 Medicare services from Dr. Brown across 13 procedure codes in 2024, for 521 Medicare patients. Medicare paid $218,887 for them. Every service was in an office.

CMS counts 521 Medicare patients who saw Dr. Brown in 2024. The largest group is 75 to 84, with 252 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.17, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Brown's median patient age at 80, with 52% women.

In 2024, Dr. Brown wrote 8,367 Medicare Part D claims for 572 patients. 86% of them were for generic drugs. CMS names the drug for 7,724 of them, across 122 drugs with 11 or more claims each, at $658,256 in total drug cost. In 2023, CMS named 7,127 claims across 112 drugs.

Dr. Brown accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Dmand AI links 66 papers to Dr. Brown, published from 2007 to 2023. 2021 was the busiest year, with 8. The most frequent topics are Melatonin, Circadian Rhythm and Sleep. Dr. Brown has published most often in Prog Neuropsychopharmacol Biol Psychiatry. Dr. Brown's most frequent co-authors are James Kennedy, MD, PhD, Lisa A. Jones, MD and Seema Rai, MD.

CMS Open Payments shows 33 general payments to Dr. Brown from 17 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Edwards Lifesciences Corporation paid the most, $154.

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

Dr. Brown graduated from Yale School of Medicine in 1988.

Dr. Brown is in network with 4 carriers, including Excellus BlueCross BlueShield, Blue Cross Blue Shield of Massachusetts and Elevance. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.