Individual provider Active NPI

Douglas Demars Sr.

  • Registered Nurse
  • Wolfeboro, NH
National Provider Identifier
1861342552
Registry record updated Feb 2, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Registered NurseTaxonomy code 163W00000X
License
064261-21 Issued in NH
Practice address
240 S Main St
Wolfeboro, NH 03894-4455
Phone
(603) 569-7500
NPI assigned
Feb 2, 2026
Last updated
Feb 2, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Feb 2, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Registered Nurse 163W00000X 064261-21 NH Primary

Addresses

Primary practice location

240 S Main St
Wolfeboro, NH 03894-4455

Mailing address

PO Box 256
Chocorua, NH 03817-0256
Phone (603) 569-7500

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Not enrolled

State licenses

LicenseStateTypeSpecialty
064261-21NHMDRegistered Nurse

NPI Registry JSON

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

{
    "created_epoch": "1769990400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1769990400000",
    "number": "1861342552",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 256",
            "city": "CHOCORUA",
            "state": "NH",
            "postal_code": "038170256",
            "telephone_number": "603-569-7500"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "240 S MAIN ST",
            "city": "WOLFEBORO",
            "state": "NH",
            "postal_code": "038944455",
            "telephone_number": "603-569-7500"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DEMARS",
        "first_name": "DOUGLAS",
        "name_suffix": "Sr.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2026-02-02",
        "last_updated": "2026-02-02",
        "certification_date": "2026-02-01",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "163W00000X",
            "taxonomy_group": "",
            "desc": "Registered Nurse",
            "state": "NH",
            "license": "064261-21",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Wolfeboro, NH

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 2, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.