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

Dr. Michael D Horwich, MD, PHD

Individual provider Dermatology Physician · NPI 1538470976

Dr. Michael D Horwich, MD, PHD is a Dermatology in Amherst, Massachusetts. Graduated from University of Massachusetts Medical School in 2010, 16 years ago. Practices with Pioneer Valley Dermatology PC, a 6-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
16
Trained at
University of Massachusetts Medical School
Licensed in
MA
In the registry since
2010
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Address checks out

29B Cottage St
Amherst, MA 01002-1206
Phone: (413) 549-7400
Fax: (413) 549-7402
Show map & directions

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

Specialties & licences

Dermatology Physician (primary) Taxonomy 207N00000X · Licence 258156 (MA)

Record details

NPI number1538470976
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedJune 30, 2010
Last updated in NPPESJune 12, 2025
Certification dateJune 12, 2025
Mailing address526 Main St Ste 302, Acton, MA 01720-3301

Medicare enrollment

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

Medicare specialtyDERMATOLOGY
Medical schoolUNIVERSITY OF MASSACHUSETTS MEDICAL SCHOOL
Graduated 2010 (16 years in practice)
Group practice Pioneer Valley Dermatology Pc — 6 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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