Daniel M O Brien, DMD

Primary specialty

General Practice DentistryTaxonomy code 1223G0001X

License

0344761 Issued in NY

Practice address

831 Route 211 East
Middletown, NY 10941

Phone

(845) 692-5311

Fax

(845) 692-6778

NPI assigned

Aug 31, 2006

Sex

Male

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

Not listed in the public Medicare enrollment file

Eligible to order & refer

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

Green means eligible to order or refer.

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 and National Provider Directory roles.

• Barry Fenner DDS PC

  • Dentist
  • Middletown, NY
  • NPI 1003980095
  NPD (past)

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

{
    "created_epoch": "1156982400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1235240334",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "831 ROUTE 211 EAST",
            "city": "MIDDLETOWN",
            "state": "NY",
            "postal_code": "10941",
            "telephone_number": "845-692-5311",
            "fax_number": "845-692-6778"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "831 ROUTE 211 EAST",
            "city": "MIDDLETOWN",
            "state": "NY",
            "postal_code": "10941",
            "telephone_number": "845-692-5311",
            "fax_number": "845-692-6778"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "O BRIEN",
        "first_name": "DANIEL",
        "middle_name": "M",
        "name_prefix": "Mr.",
        "credential": "DMD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-08-31",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "122300000X",
            "taxonomy_group": "",
            "desc": "Dentist",
            "state": "NY",
            "license": "0344761",
            "primary": false
        },
        {
            "code": "1223G0001X",
            "taxonomy_group": "",
            "desc": "Dentist, General Practice",
            "state": "NY",
            "license": "0344761",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Nurse Practitioner Family Health & Acupuncture Wellness SVCS PLLC
• Ebubechukwu Oluchi Nwigwe, M.D.
• Nys Office of Mental Health
• Nysarc
• Jaime Lorraine Nywening, MSED
• Sean Patrick O'Brien, LMSW
• Vicki L O'Brien, LCSW
• Colleen O'Carroll
• Lisa O'Connell
• Lois O'Connell

• General Practice Dentistry in Middletown, NY
• Providers in Middletown, NY by specialty
• General Practice Dentistry in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.