NPIMap

Individual provider Active NPI

Daniel William O'Neill, M.D.

  • Internal Medicine Physician
  • Putnam, CT
National Provider Identifier
1972578508
Registry record updated Apr 8, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
036878 Issued in CT
Practice address
7 Kennedy Dr
Putnam, CT 06260-1939
Phone
(860) 928-7704
Fax
(860) 928-4092
NPI assigned
Feb 17, 2006
Last updated
Apr 8, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 8, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Family Medicine Physician 207Q00000X 036878 CT
Internal Medicine Physician 207R00000X 036878 CT Primary

Addresses

Primary practice location

7 Kennedy Dr
Putnam, CT 06260-1939

Mailing address

7 Kennedy Dr
Putnam, CT 06260-1939
Phone (860) 928-7704

Other practice location 1

330 Pomfret St
Putnam, CT 06260-3803
Phone (860) 928-7704

Other identifiers 1

IdentifierTypeStateIssuer
002468788MedicaidCT

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CT
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20090122000005 CT Practitioner - Family Practice 6800950759 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Family Practice
Education
State University of New York at Stony Brook, School of Medicine, 1992
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Day Kimball Medical Group IncGroup PAC ID 1557514411, 91 clinicians

Practice addresses (Care Compare)

7 Kennedy Dr
Putnam, CT 06260-1939
Phone (860) 928-7704

Hospital & facility affiliations

Procedures performed for Medicare patients

ProcedureNumber of procedures
Removal of skin lesions1-10
Removal of nail tissue1-10
Removal or shaving of skin growth1-10

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
036878CTMDFamily Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Nes Medical Services of Northern Connecticut, P.C. CurrentSince Dec 1, 2008 Accepting new patients
Day Kimball Medical Group Inc Family Medicine CurrentSince Jan 1, 2013 Accepting new patients
Nes Medical Services of Northern Connecticut, P.C. CurrentSince Dec 1, 2008 Accepting new patients

Locations

132 Westminster Rd
Canterbury, CT 06331
Phone (860) 546-2225

45 Green Hollow Rd
Danielson, CT 06239
Phone (860) 774-1255

612 Hartford Pike
Dayville, CT 06241
Phone (860) 779-0284

320 Pomfret St
Putnam, CT 06260
Phone (860) 963-6331

330 Pomfret St
Putnam, CT 06260
Phone (860) 928-2736

7 Kennedy Dr
Putnam, CT 06260
Phone (860) 928-7704

Interoperability endpoints

  • Direct secure messaging: daniel.oneill.1@1694.direct.athenahealth.com
  • FHIR API: https://api.platform.athenahealth.com/1694/brand/19/csg/48/fhir/r4

Organizations & group practices 3

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.

Hospital & facility affiliations 8

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": "1140134400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1775606400000",
    "number": "1972578508",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "7 KENNEDY DR",
            "city": "PUTNAM",
            "state": "CT",
            "postal_code": "062601939",
            "telephone_number": "860-928-7704",
            "fax_number": "860-928-4092"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "7 KENNEDY DR",
            "city": "PUTNAM",
            "state": "CT",
            "postal_code": "062601939",
            "telephone_number": "860-928-7704",
            "fax_number": "860-928-4092"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "330 Pomfret St",
            "address_purpose": "LOCATION",
            "city": "Putnam",
            "state": "CT",
            "postal_code": "062603803",
            "country_code": "US",
            "telephone_number": "860-928-7704",
            "fax_number": "860-928-4092",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "O'NEILL",
        "first_name": "DANIEL",
        "middle_name": "WILLIAM",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-02-17",
        "last_updated": "2026-04-08",
        "certification_date": "2026-04-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "CT",
            "license": "036878",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CT",
            "license": "036878",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "002468788",
            "state": "CT"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Putnam, CT

Sources for this page

Verify at the official NPI Registry.