Individual provider Active NPI

Diane Haddock, M.D.

  • Internal Medicine Physician
  • Sacramento, CA
National Provider Identifier
1013991553
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
A88647 Issued in CA
Practice address
4150 V St
#3116
Sacramento, CA 95817-1460
Phone
(916) 734-7080
NPI assigned
Nov 29, 2005
Sex
Female
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
Internal Medicine Physician 207R00000X A88647 CA Primary

Addresses

Primary practice location

4150 V St
#3116
Sacramento, CA 95817-1460

Mailing address

4150 V St
#3116
Sacramento, CA 95817-1460
Phone (916) 734-7080

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20061116000232 VT Practitioner - Internal Medicine 1850399320 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
University of Vermont College of Medicine, 2003
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
University of Vermont Medical Center IncGroup PAC ID 3779491071, 1,208 clinicians

Practice addresses (Care Compare)

1 S Prospect St
Burlington, VT 05401-3456
Phone (802) 847-0000

111 Colchester Ave
Burlington, VT 05401-1473
Phone (802) 847-0000

2 Essex Way
Essex Junction, VT 05452-3394
Phone (802) 847-8354

Hospital & facility affiliations

  • Uvmhn Home Health and Hospice Home health agency, Colchester, VT, CCN 477000
  • Univ. of Vermont - Fletcher Allen Health Care Hospital, Burlington, VT, CCN 470003

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
A88647CAMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
University of Vermont Medical Center Inc Internal Medicine CurrentSince Oct 6, 2006 Accepting new patients
Fletcher Allen Health Care Inc Past Accepting new patients

Locations

1 S Prospect St
Burlington, VT 05401
Phone (802) 847-4531

2 Essex Way
Essex Junction, VT 05452
Phone (802) 847-8354

Interoperability endpoints

  • Direct secure messaging: dhaddock3807@direct.uvmhealth.org

Organizations & group practices 2

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.

Hospital & facility affiliations 2

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": "1133222400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1013991553",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4150 V ST",
            "address_2": "#3116",
            "city": "SACRAMENTO",
            "state": "CA",
            "postal_code": "958171460",
            "telephone_number": "916-734-7080"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4150 V ST",
            "address_2": "#3116",
            "city": "SACRAMENTO",
            "state": "CA",
            "postal_code": "958171460",
            "telephone_number": "916-734-7080"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HADDOCK",
        "first_name": "DIANE",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2005-11-29",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A88647",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Sacramento, CA

Sources for this page

Verify at the official NPI Registry.