Individual provider Active NPI

Lindsay M Demsey, PA-C

  • Physician Assistant
  • Winchester, MA
National Provider Identifier
1992079883
Registry record updated Dec 10, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physician AssistantTaxonomy code 363A00000X
License
PA4282 Issued in MA
Practice address
955 Main St
Winchester, MA 01890-1961
Phone
(781) 729-4878
Fax
(781) 729-5989
NPI assigned
Feb 24, 2012
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Dec 10, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Dermatology Physician 207N00000X PA4282 MA
Physician Assistant 363A00000X PA4282 MA Primary

Addresses

Primary practice location

955 Main St
Winchester, MA 01890-1961

Mailing address

86 Centre St
Danvers, MA 01923-1424

Other practice location 1

990 Paradise Rd
Swampscott, MA 01907-1395
Phone (781) 595-0151

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MA
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: No
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20140702001615 MA Practitioner - Physician Assistant 6103041348 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Physician Assistant
Education
Northwestern University Feinberg Medical School, 2011
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Robert J Obrien Jr MD and Assoc PCGroup PAC ID 1557250586, 19 clinicians
Howard S Goldberg MD IncGroup PAC ID 0244292688, 10 clinicians

Practice addresses (Care Compare)

140 Commonwealth Ave
Suite 201
Danvers, MA 01923-3625
Phone (781) 729-4878

990 Paradise Rd
Swampscott, MA 01907-1395
Phone 7815950151212

Hospital & facility affiliations

  • North Shore Medical Center - Hospital, Salem, MA, CCN 220035
  • Winchester Hospital Hospital, Winchester, MA, CCN 220105

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Physician Assistant

State licenses

LicenseStateTypeSpecialty
PA4282MAMDPhysician Assistant

Practice roles

OrganizationSpecialtyStatusNew patients
Robert J Obrien Jr MD & Assoc PC Dermatology CurrentSince Dec 1, 2025 Accepting new patients

Locations

140 Commonwealth Ave
Ste 201
Danvers, MA 01923
Phone (978) 739-5478

833 Main St
Melrose, MA 02176
Phone (617) 665-3500

955 Main St
Ste G6
Winchester, MA 01890
Phone (781) 729-3680

955 Main St
Winchester, MA 01890
Phone (781) 729-1900

Interoperability endpoints

  • Direct secure messaging: ldemsey@apderm.emadirect.md

Organizations & group practices 2

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.

Hospital & facility affiliations 2

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

NPI Registry JSON

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

{
    "created_epoch": "1330041600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1765324800000",
    "number": "1992079883",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "86 CENTRE ST",
            "city": "DANVERS",
            "state": "MA",
            "postal_code": "019231424"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "955 MAIN ST",
            "city": "WINCHESTER",
            "state": "MA",
            "postal_code": "018901961",
            "telephone_number": "781-729-4878",
            "fax_number": "781-729-5989"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "990 Paradise Rd",
            "address_purpose": "LOCATION",
            "city": "Swampscott",
            "state": "MA",
            "postal_code": "019071395",
            "country_code": "US",
            "telephone_number": "781-595-0151",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "DEMSEY",
        "first_name": "LINDSAY",
        "middle_name": "M",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2012-02-24",
        "last_updated": "2025-12-10",
        "certification_date": "2025-12-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207N00000X",
            "taxonomy_group": "",
            "desc": "Dermatology",
            "state": "MA",
            "license": "PA4282",
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "MA",
            "license": "PA4282",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Winchester, MA

Sources for this page

Verify at the official NPI Registry.