Individual provider Active NPI

Christian Gieseke

  • Certified Registered Nurse Anesthetist
  • Hartford, CT
National Provider Identifier
1912835950
Registry record updated Jul 15, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Certified Registered Nurse AnesthetistTaxonomy code 367500000X
License
017726 Issued in CT
Practice address
80 Seymour St
Hartford, CT 06102-8000
Phone
(860) 545-5000
NPI assigned
May 11, 2026
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jul 15, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Certified Registered Nurse Anesthetist 367500000X 017726 CT Primary

Addresses

Primary practice location

80 Seymour St
Hartford, CT 06102-8000

Mailing address

15 Carver Cir
Simsbury, CT 06070-2014
Phone (517) 918-8141

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

Care Compare profile

Medicare Care Compare
Specialty
Certified Registered Nurse Anesthetist (Crna)
Education
Other, 2026
Medicare assignment
May accept Medicare assignment

Practice addresses (Care Compare)

2211 Congress St
Portland, ME 04102-1941

2211 Congress St
Portland, ME 04102-1995

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
160889CTMDStudent in an Organized Health Care Education/Training Program

NPI Registry JSON

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

{
    "created_epoch": "1778457600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1784073600000",
    "number": "1912835950",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "15 CARVER CIR",
            "city": "SIMSBURY",
            "state": "CT",
            "postal_code": "060702014",
            "telephone_number": "517-918-8141"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "80 SEYMOUR ST",
            "city": "HARTFORD",
            "state": "CT",
            "postal_code": "061028000",
            "telephone_number": "860-545-5000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GIESEKE",
        "first_name": "CHRISTIAN",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2026-05-11",
        "last_updated": "2026-07-15",
        "certification_date": "2026-07-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "CT",
            "license": "017726",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Hartford, CT

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 15, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.