Katharine Elizabeth Gellish, NP-C

Primary specialty

Primary Care Nurse PractitionerTaxonomy code 363LP2300X

License

APN.0996886-NP Issued in CO

Practice address

8246 W Bowles Ave Unit T
Littleton, CO 80123-3084

Phone

(303) 800-0880

Fax

(415) 252-7176

NPI assigned

Dec 10, 2021

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in CO

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Nurse Practitioner

Education

Other, 2019

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Iora Health Colorado, P.C.Group PAC ID 8426323114, 42 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• HCA Healthone Healthcare at Home Home health agency, Greenwood Village, CO, CCN 067469
• AdventHealth Porter Hospital, Denver, CO, CCN 060064
• AdventHealth Littleton Hospital, Littleton, CO, CCN 060113

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

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.

• Iora Health Colorado, P.C.

  • Internal Medicine Physician
  • Aurora, CO
  • NPI 1568991511
  Medicare reassignment Care Compare group NPD
• Iora Senior Health, LLC

  • Internal Medicine Physician
  • Glendale, CO
  • NPI 1366827024
  Medicare reassignment NPD
• Iora Health Colorado, P.C.

  • Internal Medicine Physician
  • Denver, CO
  • NPI 1023632239
  NPD
• Iora Health Colorado, P.C.

  • Internal Medicine Physician
  • Glendale, CO
  • NPI 1891205399
  NPD

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

• Arc Therapy Services LLC

  • Home Health Agency
  • Greenwood Village, CO
  • NPI 1942249016
  Care Compare affiliation
• Portercare Adventist Health System

  • Emergency Care Clinic/Center
  • Littleton, CO
  • NPI 1548800154

  Hospital

  Care Compare affiliation
• Portercare Adventist Health System

  • General Acute Care Hospital
  • Littleton, CO
  • NPI 1689688988
  Care Compare affiliation
• Portercare Adventist Health System

  • General Acute Care Hospital
  • Littleton, CO
  • NPI 1720628332
  Care Compare affiliation
• Portercare Adventist Health System

  • General Acute Care Hospital
  • Denver, CO
  • NPI 1801800594
  Care Compare affiliation

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

{
    "created_epoch": "1639094400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1744848000000",
    "number": "1083373633",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "8246 W BOWLES AVE UNIT T",
            "city": "LITTLETON",
            "state": "CO",
            "postal_code": "801233084",
            "telephone_number": "303-800-0880",
            "fax_number": "415-252-7176"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "8246 W BOWLES AVE UNIT T",
            "city": "LITTLETON",
            "state": "CO",
            "postal_code": "801233084",
            "telephone_number": "303-800-0880",
            "fax_number": "415-252-7176"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GELLISH",
        "first_name": "KATHARINE",
        "middle_name": "ELIZABETH",
        "credential": "NP-C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2021-12-10",
        "last_updated": "2025-04-17",
        "certification_date": "2025-04-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LP2300X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Primary Care",
            "state": "CO",
            "license": "APN.0996886-NP",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• David Geck, DDS
• Nathaniel David Geck, DDS
• Megan McGregor Geherin, LPC
• Christopher Dale Geiger, CFA CSA
• Geiger'S Surgical, Inc.
• Julie C Gelman, MD
• Julie A Gelwick, LCSW
• Genesis Counseling
• Genesis Oral Myofunctional Therapy
• Karalynne Genre, MSW

• Primary Care Nurse Practitioner in Littleton, CO
• Providers in Littleton, CO by specialty
• Primary Care Nurse Practitioner in Colorado

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 17, 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.