Dr. Spencer Chapman Knox, MD

Dr. Knox practices at Jacksonville Center for Endoscopy - Southside in Jacksonville, Florida.

Dr. Knox's NPI, 1205220688, was assigned on March 24, 2015. Dr. Knox graduated from American University of the Caribbean School of Medicine in 2014. Dr. Knox holds Florida license ME148899.

Dr. Knox's primary practice is Jacksonville Center for Endoscopy - Southside, at 4800 Belfort Rd, Jacksonville, FL 32256 in Duval County. The practice phone is (904) 265-4801.

Dr. Knox's primary practice is Jacksonville Center for Endoscopy - Southside in Jacksonville, Florida. Dr. Knox is also affiliated with Baptist Medical Center Jacksonville. The medical group on file is Borland Groover. Dmand AI also links Dr. Knox to 1 more hospital and 1 group practice or clinic, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Knox practices, 3 sites in all. Vendor and product names are available with a free account.

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

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

CMS data shows 984 Medicare services from Dr. Knox across 15 procedure codes in 2024, for 438 Medicare patients. Medicare paid $94,757 for them.

CMS counts 438 Medicare patients who saw Dr. Knox in 2024. The largest group is 65 to 74, with 196 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 10% are also on Medicaid. Their average risk score is 1.71, 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. Knox's median patient age at 60, with 56% women.

In 2024, Dr. Knox wrote 476 Medicare Part D claims for 212 patients. 88% of them were for generic drugs. CMS names the drug for 370 of them, across 8 drugs with 11 or more claims each, at $3,877 in total drug cost. In 2023, CMS named 225 claims across 6 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 79 out of 100 for Dr. Knox for performance year 2024, reported as part of a group. Dr. Knox accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 114 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Knox, more than 79% of the clinicians it reports for that procedure.

Dmand AI links 1 paper to Dr. Knox in 2017. Dr. Knox's most frequent co-authors are Stephen Carlan, MD and Mario Madruga, MD.

CMS Open Payments shows 305 general payments to Dr. Knox from 33 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. Abbvie Inc. paid the most, $1,987.

Dr. Knox graduated from American University of the Caribbean School of Medicine in 2014.

Dr. Knox is in network with 19 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.