Dr. Mark E. Gilder, MD

Dr. Gilder practices at Northfield Surgical Center - HOPD in West Orange, New Jersey.

Dr. Gilder's NPI, 1356316525, was assigned on February 21, 2006. Dr. Gilder graduated from New York Medical College in 1987. Dr. Gilder holds New Jersey license 25MA05933500.

Dr. Gilder's primary practice is Northfield Surgical Center - HOPD, at 741 Northfield Ave, West Orange, NJ 07052.

Dr. Gilder's primary practice is Northfield Surgical Center - HOPD in West Orange, New Jersey. Dr. Gilder is also affiliated with Cooperman Barnabas Medical Center. The medical group on file is RWJBarnabas Health Medical Group. Dmand AI also links Dr. Gilder to 3 more group practices and clinics, 2 medical groups, 1 hospital outpatient department and 1 ambulatory surgery center, each named with a free account.

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

Colon and rectal surgery is Dr. Gilder's primary specialty in the NPI Registry, under taxonomy code 208C00000X. Dr. Gilder is board certified in colon & rectal surgery by the American Board of Colon and Rectal Surgery. Dmand AI has Dr. Gilder's licenses on file in 2 states: New Jersey and New York.

Dmand AI lists colonoscopy, colon removal and hemorrhoids among the conditions Dr. Gilder treats.

CMS data shows 520 Medicare services from Dr. Gilder across 13 procedure codes in 2024, for 245 Medicare patients. Medicare paid $77,245 for them.

CMS counts 245 Medicare patients who saw Dr. Gilder in 2024. The largest group is 65 to 74, with 117 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 10% are also on Medicaid. Their average risk score is 1.52, 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. Gilder's median patient age at 62, with 36% women.

In 2024, Dr. Gilder wrote 153 Medicare Part D claims for 73 patients. 69% of them were for generic drugs. CMS names the drug for 67 of them, across 5 drugs with 11 or more claims each, at $4,881 in total drug cost. In 2023, CMS named 128 claims across 8 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 99 out of 100 for Dr. Gilder for performance year 2024, reported through an alternative payment model (APM). Dr. Gilder accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 49 procedures of colonoscopy by Dr. Gilder, more than 63% of the clinicians it reports for that procedure.

Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)

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

Dmand AI links 1 paper to Dr. Gilder. Dr. Gilder's most frequent co-authors are Ronald Scott Chamberlain, MD, Robert D. Orringer, MD and Debra R. Tarantino, MD.

CMS Open Payments shows 263 general payments to Dr. Gilder from 46 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 44% of the total. Merck Sharp & Dohme Corporation paid the most, $16,842.

Dmand AI lists 7 awards for Dr. Gilder, most recently Inside Jersey Magazine Top Doctors in 2014.

Dr. Gilder graduated from New York Medical College in 1987. Dr. Gilder is a member of ACS.

Dr. Gilder is in network with 18 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.