Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Michael Fastenberg, MD

Individual provider Dermatology Physician · NPI 1073735593

Michael Fastenberg, MD is a Dermatology in Smithtown, New York. Graduated from State University of New York at Stony Brook, School of Medicine in 2005, 21 years ago. Practices with Schweiger Dermatology PLLC, a 248-clinician group and accepts Medicare assignment. Licensed in North Carolina and New York.

Years since qualifying
21
Trained at
State University of New York at Stony Brook, School of Medicine
Licensed in
NC, NY
In the registry since
2007
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

260 Middle Country Rd Ste 208
Smithtown, NY 11787-2982
Phone: (631) 863-3223
Fax: (631) 863-3334
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Dermatology Physician (primary) Taxonomy 207N00000X · Licence 252150-1 (NY)
Dermatology Physician Taxonomy 207N00000X · Licence 2006-01943 (NC)

Record details

NPI number1073735593
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 3, 2007
Last updated in NPPESJanuary 26, 2011
Mailing address260 Middle Country Rd, Suite 208, Smithtown, NY 11787-2982

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyDERMATOLOGY
Medical schoolSTATE UNIVERSITY OF NEW YORK AT STONY BROOK, SCHOOL OF MEDICINE
Graduated 2005 (21 years in practice)
Group practice Schweiger Dermatology Pllc — 248 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Smithtown