NPIMap

Individual provider Active NPI

Thomas Joseph Kardashian-Sieger, MD

  • Emergency Medicine Physician
  • Bronx, NY
National Provider Identifier
1447830757
Registry record updated Jun 25, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Emergency Medicine PhysicianTaxonomy code 207P00000X
License
27687 Issued in NV
Practice address
1400 Pelham Pkwy S
Bronx, NY 10461-1197
Phone
(718) 918-5812
NPI assigned
Apr 11, 2021
Last updated
Jun 25, 2026By the provider in NPPES
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jun 25, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Emergency Medicine Physician 207P00000X 27687 NV Primary
Emergency Medicine Physician 207P00000X 328927 NY

Addresses

Primary practice location

1400 Pelham Pkwy S
Bronx, NY 10461-1197

Mailing address

191 Saint Nicholas Ave Apt 3E
New York, NY 10026-1235
Phone (917) 446-2200

Other practice location 1

1800 W Charleston Blvd
Las Vegas, NV 89102-2386
Phone (702) 383-2000

Other practice location 2

4802 10th Ave
Brooklyn, NY 11219-2916
Phone (718) 283-6000

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in NY, NV2 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
I20240705001235 NY Practitioner - Emergency Medicine 9234673906 Reassigns benefits to 1 organization
I20251022003261 NV Practitioner - Emergency Medicine 9234673906 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Emergency Medicine
Education
Rutgers New Jersey Medical School, 2021
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Shadow Emergency Physicians PLLCGroup PAC ID 2860667375, 105 clinicians

Practice addresses (Care Compare)

6900 N Durango Dr
Las Vegas, NV 89149-4409
Phone (954) 939-5000

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
27687NVMDEmergency Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Shadow Emergency Physicians PLLC Emergency Medicine CurrentSince Jul 10, 2025 Accepting new patients
Shadow Emergency Physicians PLLC Emergency Medicine Current Accepting new patients
Shadow Emergency Physicians PLLC Emergency Medicine CurrentSince Jul 10, 2025 Accepting new patients
Maimonides Medical Center - MMC Emergency Physicians FPP Emergency Medicine CurrentSince Jul 1, 2024 Accepting new patients

Locations

620 Shadow Ln
Las Vegas, NV 89106
Phone (702) 388-4506

6900 N Durango Dr
Las Vegas, NV 89149
Phone (702) 380-1964

4802 10th Ave
Brooklyn, NY 11219
Phone (718) 283-8724

Networks

  • Healthfirst Medicare Network H5989
  • Healthfirst Medicare Network H1722
  • Healthfirst Medicare Network H9678
  • Healthfirst Medicare Network H3359

Interoperability endpoints

  • Direct secure messaging: tkardashiansieger3990810@nychhc.direct-ci.com

Organizations & group practices 4

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 13

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

View all 13

NPI Registry JSON

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

{
    "created_epoch": "1618099200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1782345600000",
    "number": "1447830757",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "191 SAINT NICHOLAS AVE APT 3E",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100261235",
            "telephone_number": "917-446-2200"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1400 PELHAM PKWY S",
            "city": "BRONX",
            "state": "NY",
            "postal_code": "104611197",
            "telephone_number": "718-918-5812"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1800 W Charleston Blvd",
            "address_purpose": "LOCATION",
            "city": "Las Vegas",
            "state": "NV",
            "postal_code": "891022386",
            "country_code": "US",
            "telephone_number": "702-383-2000",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "4802 10th Ave",
            "address_purpose": "LOCATION",
            "city": "Brooklyn",
            "state": "NY",
            "postal_code": "112192916",
            "country_code": "US",
            "telephone_number": "718-283-6000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KARDASHIAN-SIEGER",
        "first_name": "THOMAS",
        "middle_name": "JOSEPH",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2021-04-11",
        "last_updated": "2026-06-25",
        "certification_date": "2026-06-25",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "NV",
            "license": "27687",
            "primary": true
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "NY",
            "license": "328927",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Bronx, NY

Sources for this page

Verify at the official NPI Registry.