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

Margaret Spencer Johnston

Individual provider Dermatology Physician · NPI 1669932406

Margaret Spencer Johnston is a Dermatology in Colchester, Vermont. Qualified in 2019, 7 years ago. Practices with Green Mountain Dermatology PLLC, a 15-clinician group and accepts Medicare assignment. Licensed in New York and Vermont.

Years since qualifying
7
Licensed in
NY, VT
In the registry since
2019
Specialties on file
2

Practice location Address checks out

354 Mountain View Dr Ste 300
Colchester, VT 05446-5988
Phone: (802) 864-0192
Show map & directions

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

Specialties & licences

Dermatology Physician (primary) Taxonomy 207N00000X · Licence 042.0017627 (VT)
Dermatology Physician Taxonomy 207N00000X · Licence 332091 (NY)

Record details

NPI number1669932406
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedMarch 20, 2019
Last updated in NPPESAugust 18, 2025
Certification dateAugust 18, 2025
Mailing address354 Mountain View Dr Ste 300, Colchester, VT 05446-5988

Medicare enrollment

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

Medicare specialtyDERMATOLOGY
Medical schoolOTHER
Graduated 2019 (7 years in practice)
Group practice Green Mountain Dermatology Pllc — 15 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in Colchester