NPIMap

Individual provider Active NPI

Peter John Drennan, D.O.

  • Internal Medicine Physician
  • Enfield, CT
National Provider Identifier
1629043625
Registry record updated May 11, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
64560 Issued in CT
Practice address
701 Enfield St
Enfield, CT 06082-2961
Phone
(860) 741-6058
Fax
(413) 733-5860
NPI assigned
Feb 22, 2006
Last updated
May 11, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on May 11, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X 64560 CT Primary
Internal Medicine Physician 207R00000X 54104 MA

Addresses

Primary practice location

701 Enfield St
Enfield, CT 06082-2961

Mailing address

280 Chestnut St FL 2
Springfield, MA 01199-1001
Phone (413) 794-5700

Other identifiers 3

IdentifierTypeStateIssuer
110051774AMedicaidMA
003116242MedicaidCT
64994127MedicaidMA

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MA, CT2 enrollments
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20040927001034 MA Practitioner - Internal Medicine 5890684021
I20200129002591 CT Practitioner - Internal Medicine 5890684021 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
University of New England, College of Osteo Medicine, 1983
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Baystate Medical Practices IncGroup PAC ID 5991602971, 1,350 clinicians
Springfield Medical Associates, Inc.Group PAC ID 6103725452, 10 clinicians

Practice addresses (Care Compare)

701 Enfield St
Enfield, CT 06082-2961
Phone (860) 741-6058

701 Enfield St
Suite 100
Enfield, CT 06082-2977
Phone (860) 741-6058

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
54101MAMDDiagnostic Radiology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
The Mercy Hospital Inc Past Accepting new patients

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 9

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": "1140566400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1778457600000",
    "number": "1629043625",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "280 CHESTNUT ST FL 2",
            "city": "SPRINGFIELD",
            "state": "MA",
            "postal_code": "011991001",
            "telephone_number": "413-794-5700",
            "fax_number": "413-794-1629"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "701 ENFIELD ST",
            "city": "ENFIELD",
            "state": "CT",
            "postal_code": "060822961",
            "telephone_number": "860-741-6058",
            "fax_number": "413-733-5860"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DRENNAN",
        "first_name": "PETER",
        "middle_name": "JOHN",
        "credential": "D.O.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-02-22",
        "last_updated": "2026-05-11",
        "certification_date": "2026-05-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CT",
            "license": "64560",
            "primary": true
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MA",
            "license": "54104",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "110051774A",
            "state": "MA"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "003116242",
            "state": "CT"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "64994127",
            "state": "MA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Enfield, CT

Sources for this page

Verify at the official NPI Registry.