Individual provider Active NPI

James A Giles, MD PHD

  • Vascular Neurology Physician
  • New Haven, CT
National Provider Identifier
1467867481
Registry record updated Dec 4, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Vascular Neurology PhysicianTaxonomy code 2084V0102X
License
071814 Issued in CT
Practice address
15 York St
New Haven, CT 06510-3221
Phone
(203) 747-4276
NPI assigned
Jun 28, 2014
Last updated
Dec 4, 2025By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Dec 4, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Neurology Physician 2084N0400X 071814 CT
Vascular Neurology Physician 2084V0102X 071814 CT Primary

Addresses

Primary practice location

15 York St
New Haven, CT 06510-3221

Mailing address

100 York St Ste 1N
New Haven, CT 06511-5620
Phone (203) 737-4276

Other practice location 1

20 York St
New Haven, CT 06510-3220
Phone (203) 688-4242

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CT
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
I20221201000243 CT Practitioner - Neurology 3072733427 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Neurology
Education
Other, 2013
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Yale UniversityGroup PAC ID 9436061736, 2,632 clinicians

Practice addresses (Care Compare)

800 Howard Ave
New Haven, CT 06519-1369
Phone (203) 785-2140

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
87.36 of 100Reported as group
Quality
77.36
Promoting interoperability
100
Improvement activities
40
Cost
74.27

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
071814CTMDVascular Neurology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Yale University Neurology CurrentSince Oct 1, 2022 Accepting new patients
Yale University CurrentSince Oct 1, 2022 Accepting new patients

Locations

15 York St
New Haven, CT 06510
Phone (203) 688-5303

50 Division St
New Haven, CT 06511
Phone (203) 785-2140

800 Howard Ave
New Haven, CT 06519
Phone (203) 785-2140

20 York St
North Haven, CT 06510
Phone (203) 688-2433

Interoperability endpoints

  • Direct secure messaging: jgiles589235@direct.ynhh.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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 4

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": "1403913600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1764806400000",
    "number": "1467867481",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "100 YORK ST STE 1N",
            "city": "NEW HAVEN",
            "state": "CT",
            "postal_code": "065115620",
            "telephone_number": "203-737-4276"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "15 YORK ST",
            "city": "NEW HAVEN",
            "state": "CT",
            "postal_code": "065103221",
            "telephone_number": "203-747-4276"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "20 York St",
            "address_purpose": "LOCATION",
            "city": "New Haven",
            "state": "CT",
            "postal_code": "065103220",
            "country_code": "US",
            "telephone_number": "203-688-4242",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "GILES",
        "first_name": "JAMES",
        "middle_name": "A",
        "name_prefix": "Dr.",
        "credential": "MD PHD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2014-06-28",
        "last_updated": "2025-12-04",
        "certification_date": "2025-12-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084N0400X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Neurology",
            "state": "CT",
            "license": "071814",
            "primary": false
        },
        {
            "code": "2084V0102X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Vascular Neurology",
            "state": "CT",
            "license": "071814",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in New Haven, CT

Sources for this page

Verify at the official NPI Registry.