Dr. David J. Niemeyer, MD

Dr. Niemeyer practices at Baptist Medical Center Jacksonville in Jacksonville, Florida, part of Baptist Health.

Dr. Niemeyer's NPI, 1235344128, was assigned on May 14, 2007. Dr. Niemeyer graduated from Feinberg School of Medicine in 2006. Dr. Niemeyer holds Florida license ME120434.

Dr. Niemeyer's primary practice is Baptist Medical Center Jacksonville, at 800 Prudential Dr, Jacksonville, FL 32207 in Duval County. The practice phone is (904) 202-2000.

Dr. Niemeyer's primary practice is Baptist Medical Center Jacksonville in Jacksonville, Florida, part of Baptist Health. Dr. Niemeyer is also affiliated with HCA Florida Memorial Hospital. The medical group on file is North Florida Surgeons. Dmand AI also links Dr. Niemeyer 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. Niemeyer practices, 4 sites in all. Vendor and product names are available with a free account.

Surgery is Dr. Niemeyer's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Niemeyer is board certified in surgery by the American Board of Surgery. Dmand AI has Dr. Niemeyer's licenses on file in 3 states: Florida, North Carolina and Michigan.

Dmand AI lists abdominal adhesion surgery, abdominal hernia repair surgery, appendectomy, colon removal, esophagus, stomach, or upper small intestine surgery, gallbladder removal, groin hernia surgery and intestinal or bowel obstruction among the conditions Dr. Niemeyer treats.

CMS data shows 140 Medicare services from Dr. Niemeyer across 5 procedure codes in 2024, all of them office visits, for 130 Medicare patients. Medicare paid $12,424 for them. Every service was in an office.

CMS counts 130 Medicare patients who saw Dr. Niemeyer in 2024. The largest group is 65 to 74, with 62 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.61, 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. Niemeyer's median patient age at 68, with 60% women.

In 2024, Dr. Niemeyer wrote 84 Medicare Part D claims for 68 patients. 98% of them were for generic drugs. CMS names the drug for 58 of them, across 1 drug with 11 or more claims each, at $423 in total drug cost. In 2023, CMS named 74 claims across 4 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 82 out of 100 for Dr. Niemeyer for performance year 2024, reported as part of a group. Dr. Niemeyer accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Niemeyer as offering telehealth.

Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)

Hernia repair (minimally invasive): 1 to 10 procedures (CMS shows small counts as a range)

Hernia repair - groin (open): 1 to 10 procedures (CMS shows small counts as a range)

Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)

Dmand AI links 9 papers to Dr. Niemeyer, published from 2007 to 2014. 2014 was the busiest year, with 3. The most frequent topics are Hepatectomy, Carcinoma, Hepatocellular and Liver. Dr. Niemeyer has published most often in HPB (Oxford). Dr. Niemeyer's most frequent co-authors are David Anthony Iannitti, MD, David Sindram, MD and John Bennett Martinie, MD.

CMS Open Payments shows 49 general payments to Dr. Niemeyer from 21 drug and device companies from 2016 to 2025. Education make up the largest share, 56% of the total. Intuitive Surgical, Inc. paid the most, $6,137.

Dmand AI lists 1 award for Dr. Niemeyer.

Dr. Niemeyer graduated from Feinberg School of Medicine in 2006. Dr. Niemeyer is a member of ACS.

Dr. Niemeyer is in network with 19 carriers, including Elevance, Aetna and United Healthcare. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.