Individual provider Active NPI

Mark S Volk, MD, DMD

  • Otolaryngology Physician
  • Boston, MA
National Provider Identifier
1124091806
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Otolaryngology PhysicianTaxonomy code 207Y00000X
License
79400 Issued in MA
Practice address
333 Longwood Ave
Floor 3
Boston, MA 02115-5711
Phone
(617) 355-4556
Fax
(617) 730-0337
NPI assigned
Feb 11, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 13, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Otolaryngology Physician 207Y00000X 79400 MA Primary

Addresses

Primary practice location

333 Longwood Ave
Floor 3
Boston, MA 02115-5711

Mailing address

26 Hammond Cir
Sudbury, MA 01776-2764
Phone (978) 443-1992

Other identifiers 1

IdentifierTypeStateIssuer
3122913MedicaidMA

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
HHS exclusion list flag
Flagged The directory lists this NPI on an HHS exclusion list. The OIG exclusions file (LEIE) holds no record for this NPI, and the directory does not say which list the flag comes from. How exclusions are shown Confirm with the OIG exclusions search.
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
79400MAMDOtolaryngology Physician

NPI Registry JSON

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

{
    "created_epoch": "1139616000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1124091806",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "26 HAMMOND CIR",
            "city": "SUDBURY",
            "state": "MA",
            "postal_code": "017762764",
            "telephone_number": "978-443-1992"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "333 LONGWOOD AVE",
            "address_2": "FLOOR 3",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021155711",
            "telephone_number": "617-355-4556",
            "fax_number": "617-730-0337"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "VOLK",
        "first_name": "MARK",
        "middle_name": "S",
        "name_prefix": "Dr.",
        "credential": "MD, DMD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-02-11",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Y00000X",
            "taxonomy_group": "",
            "desc": "Otolaryngology",
            "state": "MA",
            "license": "79400",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "3122913",
            "state": "MA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Boston, MA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.