NPIMap

Individual provider Active NPI

Luke J Mountjoy, DO

  • Hematology & Oncology Physician
  • Denver, CO
National Provider Identifier
1447665906
Registry record updated Sep 4, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hematology & Oncology PhysicianTaxonomy code 207RH0003X
License
0062549 Issued in CO
Practice address
1721 E 19TH Ave Ste 300
Denver, CO 80218-1258
Phone
(720) 754-4800
NPI assigned
Jun 24, 2014
Last updated
Sep 4, 2025By the provider in NPPES
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Sep 4, 2025

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

Specialties & licenses 4

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X R10122 IA
Hematology & Oncology Physician 207RH0003X 007210 AZ
Internal Medicine Physician 207R00000X DR0062549 CO
Hematology & Oncology PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 207RH0003X 0062549 CO Primary

Addresses

Primary practice location

1721 E 19TH Ave Ste 300
Denver, CO 80218-1258

Mailing address

13400 E Shea Blvd
Scottsdale, AZ 85259-5452
Phone (480) 301-8000

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in TX, CO, NM3 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 3

Enrollment IDStateProvider typePAC IDDetails
I20171004001338 TX Practitioner - Internal MedicinePractitioner - Hematology/Oncology 2961621552 Reassigns benefits to 1 organization
I20200515001044 CO Practitioner - Internal Medicine 2961621552 Reassigns benefits to 1 organization
I20250815004285 NM Practitioner - HematologyPractitioner - Medical Oncology 2961621552 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Des Moines University of Osteopathic Medicine and Health Sciences, 2014
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Healthone Clinic Services - Oncology Hematology LLCGroup PAC ID 9436293461, 47 clinicians

Practice addresses (Care Compare)

1721 E 19TH Ave
Suite 300
Denver, CO 80218-1251
Phone (720) 754-4800

490 W Zia Rd
Suite a
Santa Fe, NM 87505-6996
Phone (505) 913-8951

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
DR0062549COMDInternal Medicine Physician
R10122IAMDInternal Medicine Physician
007210AZMDHematology & Oncology Physician
0062549COMDHematology & Oncology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Dhew Ind HLTH SV HLTH SVS & MNTL HLTH Adm CurrentSince Sep 3, 2017 Accepting new patients
Healthone Clinic Services - Oncology Hematology LLC Multi-Specialty CurrentSince Jul 1, 2020 Accepting new patients
Dhew Ind HLTH SV HLTH SVS & MNTL HLTH Adm Multi-Specialty CurrentSince Sep 3, 2017 Accepting new patients
HCA Healthone LLC Past Accepting new patients

Locations

4212 N 16th St
Phoenix, AZ 85016
Phone (602) 248-4187

1721 E 19th Ave
Ste 200
Denver, CO 80218
Phone (303) 839-6745

1719 E 19th Ave
Denver, CO 80218
Phone (303) 839-6000

1721 E 19th Ave
Ste 300
Denver, CO 80218
Phone (720) 748-4800

2121 E Harmony Rd
Unit 150
Fort Collins, CO 80528
Phone (970) 237-7860

490 W Zia Rd
#A
Santa Fe, NM 87505
Phone (505) 913-5233

2000 Health Park Dr
Brentwood, TN 37027
Phone (615) 372-5426

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 16

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

View all 16

NPI Registry JSON

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

{
    "created_epoch": "1403568000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1756944000000",
    "number": "1447665906",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "13400 E SHEA BLVD",
            "city": "SCOTTSDALE",
            "state": "AZ",
            "postal_code": "852595452",
            "telephone_number": "480-301-8000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1721 E 19TH AVE STE 300",
            "city": "DENVER",
            "state": "CO",
            "postal_code": "802181258",
            "telephone_number": "720-754-4800"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MOUNTJOY",
        "first_name": "LUKE",
        "middle_name": "J",
        "credential": "DO",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2014-06-24",
        "last_updated": "2025-09-04",
        "certification_date": "2025-09-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "IA",
            "license": "R10122",
            "primary": false
        },
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "AZ",
            "license": "007210",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CO",
            "license": "DR0062549",
            "primary": false
        },
        {
            "code": "207RH0003X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "CO",
            "license": "0062549",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Denver, CO

Sources for this page

Verify at the official NPI Registry.