Margaret Spencer Johnston

Primary specialty

Dermatology PhysicianTaxonomy code 207N00000X

License

042.0017627 Issued in VT

Practice address

354 Mountain View Dr Ste 300
Colchester, VT 05446-5988

Phone

(802) 864-0192

NPI assigned

Mar 20, 2019

Sex

Female

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in VT, NY2 enrollments

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 2

Specialty

Dermatology

Education

Other, 2019

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Green Mountain Dermatology PLLCGroup PAC ID 4688011992, 15 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Univ. of Vermont - Fletcher Allen Health Care Hospital, Burlington, VT, CCN 470003
• The University of Vermont Health Network - Champl Hospital, Plattsburgh, NY, CCN 330250

Merit-based Incentive Payment System (MIPS)

Final score

88.67 of 100Reported as group

Quality

80.11

Improvement activities

40

Cost

88.76

Merit-based Incentive Payment System (MIPS)

Final score

87.36 of 100Reported as group

Quality

77.36

Promoting interoperability

100

Improvement activities

40

Cost

74.27

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Green Mountain Dermatology PLLC

  • Dermatology Physician
  • Colchester, VT
  • NPI 1093577827

  Dermatology, NY, VT

  Medicare reassignment Care Compare group NPD
• Four Seasons Dermatology LLC

  • Dermatology Physician
  • Colchester, VT
  • NPI 1790737393

  Dermatology, VT

  Medicare reassignment NPD

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• University of Vermont Medical Center Inc

  • General Acute Care Hospital
  • Burlington, VT
  • NPI 1568419976

  Hospital

  Care Compare affiliation
• Champlain Valley Physicians Hospital Medical Center

  • General Acute Care Hospital
  • Plattsburgh, NY
  • NPI 1033270699

  Hospital

  Care Compare affiliation

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1553040000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1755475200000",
    "number": "1669932406",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "354 MOUNTAIN VIEW DR STE 300",
            "city": "COLCHESTER",
            "state": "VT",
            "postal_code": "054465988",
            "telephone_number": "802-864-0192"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "354 MOUNTAIN VIEW DR STE 300",
            "city": "COLCHESTER",
            "state": "VT",
            "postal_code": "054465988",
            "telephone_number": "802-864-0192"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "JOHNSTON",
        "first_name": "MARGARET",
        "middle_name": "SPENCER",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2019-03-20",
        "last_updated": "2025-08-18",
        "certification_date": "2025-08-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207N00000X",
            "taxonomy_group": "",
            "desc": "Dermatology",
            "state": "NY",
            "license": "332091",
            "primary": false
        },
        {
            "code": "207N00000X",
            "taxonomy_group": "",
            "desc": "Dermatology",
            "state": "VT",
            "license": "042.0017627",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Joan Breault Counseling Services, LLC
• Alex John, M.D.
• Bethany Johnson, MS
• Danielle Marie Johnson
• Jessica L Johnson, M.D.
• Joan Allen Jones, COTA
• Marcie Beth Jorgensen, PHARM D
• Michael S Joyce, MSW, LICSW
• Just Breathe Counseling
• Deborah Kalamasz, MS CCC SLP

• All providers in Colchester, VT
• Dermatology Physician in Vermont

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 18, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.