Katherine Januszewicz, MD

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

20016 Issued in NV

Practice address

3186 S Maryland Pkwy
Las Vegas, NV 89109-2306

Phone

(702) 961-5000

NPI assigned

Apr 6, 2016

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in NV

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

Specialty

Emergency Medicine

Education

Boston University School of Medicine, 2016

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)

Hospital & facility affiliations

• Valley Hospital Medical Center Hospital, Las Vegas, NV, CCN 290021
• Henderson Hospital Hospital, Henderson, NV, CCN 290057
• Summerlin Hospital Medical Center Hospital, Las Vegas, NV, CCN 290041

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

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.

• Shadow Emergency Physicians PLLC

  • Emergency Medicine Physician
  • Las Vegas, NV
  • NPI 1184795874
  Medicare reassignment Care Compare group NPD
• Fremont Emergency Services Scherr LTD

  • Emergency Medicine Physician
  • Las Vegas, NV
  • NPI 1679550149
  Medicare reassignment NPD
• Fremont Emergency Services Scherr LTD

  • Emergency Medicine Physician
  • North Las Vegas, NV
  • NPI 1316488141
  NPD
• Shadow Emergency Physicians PLLC

  • Emergency Medicine Physician
  • Las Vegas, NV
  • NPI 1043030919
  NPD
• Fremont Emergency Services Scherr LTD

  • Emergency Medicine Physician
  • Las Vegas, NV
  • NPI 1366429821
  NPD (past)

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

• Henderson Hospital

  • General Acute Care Hospital
  • Henderson, NV
  • NPI 1003281452
  Care Compare affiliation
• Henderson Hospital

  • Emergency Care Clinic/Center
  • Henderson, NV
  • NPI 1285490292

  Hospital

  Care Compare affiliation
• Henderson Hospital

  • Emergency Care Clinic/Center
  • Henderson, NV
  • NPI 1376198028

  Hospital

  Care Compare affiliation
• Summerlin Hospital Medical Center L L C

  • General Acute Care Hospital
  • Las Vegas, NV
  • NPI 1831189638
  Care Compare affiliation
• Summerlin Hospital Medical Center L L C

  • Emergency Care Clinic/Center
  • Las Vegas, NV
  • NPI 1861234619

  Hospital

  Care Compare affiliation
• Valley Hospital Medical Center

  • Emergency Care Clinic/Center
  • Las Vegas, NV
  • NPI 1396436630

  Hospital

  Care Compare affiliation
• Valley Hospital Medical Center

  • General Acute Care Hospital
  • Las Vegas, NV
  • NPI 1417947490
  Care Compare affiliation
• Valley Hospital Medical Center

  • Emergency Care Clinic/Center
  • Las Vegas, NV
  • NPI 1598479602

  Hospital

  Care Compare affiliation
• Valley Hospital Medical Center

  • Emergency Care Clinic/Center
  • Las Vegas, NV
  • NPI 1770150914

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1459900800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1753660800000",
    "number": "1255795290",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2581 SAINT ROSE PKWY",
            "city": "HENDERSON",
            "state": "NV",
            "postal_code": "890747777",
            "telephone_number": "702-780-2700"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3186 S MARYLAND PKWY",
            "city": "LAS VEGAS",
            "state": "NV",
            "postal_code": "891092306",
            "telephone_number": "702-961-5000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2150 Pennsylvania Ave NW",
            "address_purpose": "LOCATION",
            "city": "Washington",
            "state": "DC",
            "postal_code": "200373201",
            "country_code": "US",
            "telephone_number": "202-741-3000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "JANUSZEWICZ",
        "first_name": "KATHERINE",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2016-04-06",
        "last_updated": "2025-07-28",
        "certification_date": "2025-07-28",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "NV",
            "license": "20016",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Danyel J Janssen, M.S.
• Phillip Janssen
• Alexander J Jantz
• Ambria January
• Anna Marie January
• Nicholas J Januszko, DC
• Nicolette Krijgers Janzen, M.D.
• Christine Jaojoco
• Marianne Jaojoco, PA
• Meneleo S Jaojoco, MD

• Emergency Medicine Physician in Las Vegas, NV
• Providers in Las Vegas, NV by specialty
• Emergency Medicine Physician in Nevada

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 28, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• 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.