Mark Alexander Stevens, D.M.D.

Primary specialty

DentistTaxonomy code 122300000X

License

DN1860051 Issued in MA

Practice address

18 North Rd Ste 9
Chelmsford, MA 01824-2771

Phone

(978) 256-2561

NPI assigned

Jun 7, 2016

Last updated

Feb 10, 2026By the provider in NPPES

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in NH

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: No
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

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

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

{
    "created_epoch": "1465257600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770681600000",
    "number": "1982053203",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4 WILLIAMS AVE",
            "city": "WESTFORD",
            "state": "MA",
            "postal_code": "018861756",
            "telephone_number": "714-883-3335"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "18 NORTH RD STE 9",
            "city": "CHELMSFORD",
            "state": "MA",
            "postal_code": "018242771",
            "telephone_number": "978-256-2561"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "149 Pleasant St",
            "address_purpose": "LOCATION",
            "city": "Dracut",
            "state": "MA",
            "postal_code": "018264801",
            "country_code": "US",
            "telephone_number": "978-957-1811",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "STEVENS",
        "first_name": "MARK",
        "middle_name": "ALEXANDER",
        "name_prefix": "Dr.",
        "credential": "D.M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2016-06-07",
        "last_updated": "2026-02-10",
        "certification_date": "2026-02-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "122300000X",
            "taxonomy_group": "",
            "desc": "Dentist",
            "state": "MA",
            "license": "DN1860051",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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• Dentist in Chelmsford, MA
• Providers in Chelmsford, MA by specialty
• Dentist in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 10, 2026; 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.