Dr. Michael Fastenberg, MD

Dr. Fastenberg practices at Schweiger Dermatology in Smithtown, New York.

Dr. Fastenberg's NPI, 1073735593, was assigned on May 3, 2007. Dr. Fastenberg graduated from Renaissance School of Medicine at Stony Brook University in 2005. Dr. Fastenberg holds New York license 252150-1.

Dr. Fastenberg's primary practice is Schweiger Dermatology, at 260 Middle Country Rd, Smithtown, NY 11787 in Suffolk County. The practice phone is (929) 470-5354.

Dr. Fastenberg's primary practice is Schweiger Dermatology in Smithtown, New York. The medical group on file is Schweiger Dermatology Group. Dmand AI also links Dr. Fastenberg to 2 more group practices and clinics and 1 medical group, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Fastenberg practices, 2 sites in all. Vendor and product names are available with a free account.

Dermatology is Dr. Fastenberg's primary specialty in the NPI Registry, under taxonomy code 207N00000X. Dr. Fastenberg is board certified in dermatology by the American Board of Dermatology. Dmand AI has Dr. Fastenberg's licenses on file in 2 states: New York and North Carolina.

Dmand AI lists acne, acute skin infection, benign or precancerous skin growths, cold sores or genital herpes, contact dermatitis, corns and calluses, facial skin infection and itchy rashes among the conditions Dr. Fastenberg treats.

CMS data shows 7,119 Medicare services from Dr. Fastenberg across 18 procedure codes in 2024, for 1,072 Medicare patients. Medicare paid $357,187 for them. Every service was in an office.

CMS counts 1,072 Medicare patients who saw Dr. Fastenberg in 2024. The largest group is 65 to 74, with 445 patients. 75% of them have high cholesterol, and 74% have high blood pressure. 4% are also on Medicaid. Their average risk score is 1.03, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Fastenberg's median patient age at 60, with 44% women.

In 2024, Dr. Fastenberg wrote 987 Medicare Part D claims for 421 patients. 82% of them were for generic drugs. CMS names the drug for 827 of them, across 19 drugs with 11 or more claims each, at $365,049 in total drug cost. In 2023, CMS named 785 claims across 15 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Fastenberg for performance year 2024, reported individually. Dr. Fastenberg accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 2,961 procedures of removal of skin lesions by Dr. Fastenberg, more than 99% of the clinicians it reports for that procedure.

Dmand AI links 3 papers to Dr. Fastenberg. Dr. Fastenberg's most frequent co-author is James Walker Click, MD.

CMS Open Payments shows 2,845 general payments to Dr. Fastenberg from 55 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 59% of the total. Galderma Laboratories, L.P. paid the most, $82,793.

Dmand AI lists 1 award for Dr. Fastenberg, most recently CMS Stage 1 2012 in 2011.

Dr. Fastenberg graduated from Renaissance School of Medicine at Stony Brook University in 2005.

Dr. Fastenberg is in network with 16 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.