Dr. Luke J. Mountjoy, DO

  • Denver, CO
  • Internist
NPI1447665906PAC ID2961621552
Medicare services, 2024
6,369
Medicare patients, 2024
256
Part D claims, 2024
1,241
Publications
16
Hospital affiliations
2
Practice address
1721 E 19th Ave, Denver, CO 80218
Practice phone
Call (720) 754-4800
Professional email
Get professional email
Personal email
Get personal email
Mobile number
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Social profiles

Primary practice

HealthONE Clinic Services - Oncology Hematology

Denver, Colorado

See all 6 affiliations

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Dr. Luke J. Mountjoy is an internist in Denver, Colorado

Dr. Mountjoy practices at HealthONE Clinic Services - Oncology Hematology in Denver, Colorado.

Dr. Mountjoy's NPI, 1447665906, was assigned on June 24, 2014. Dr. Mountjoy graduated from Des Moines University of Osteopathic Medicine and Health Sciences in 2014. Dr. Mountjoy holds Colorado license DR0062549.

NPI and contact details
Medicare PAC ID
2961621552
NPI enumeration date
June 24, 2014
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(720) 754-4800
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Male
Estimated age
38
Medical school graduation
2014

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Luke J. Mountjoy practices at HealthONE Clinic Services - Oncology Hematology in Denver, Colorado

Dr. Mountjoy's primary practice is HealthONE Clinic Services - Oncology Hematology, at 1721 E 19th Ave, Denver, CO 80218 in Denver County. The practice phone is (720) 754-4800.

  • HealthONE Clinic Services - Oncology Hematology
    1721 E 19th Ave, Denver, CO 80218 · Denver CountyPhone(720) 754-4800

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Luke J. Mountjoy is affiliated with 4 sites of care and 2 medical groups

Dr. Mountjoy's primary practice is HealthONE Clinic Services - Oncology Hematology in Denver, Colorado. Dr. Mountjoy is also affiliated with HCA HealthONE Presbyterian St. Luke's. The medical group on file is HCA HealthONE Physicians. Dmand AI also links Dr. Mountjoy to 1 more hospital, 1 group practice or clinic and 1 medical group, each named with a free account.

See all 6 affiliations for Dr. Mountjoy

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Luke J. Mountjoy's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mountjoy practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
HealthONE Clinic Services - Oncology HematologyAvailable with a free account
+3 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Luke J. Mountjoy is one of 1,668 internists in Colorado

Internal medicine is Dr. Mountjoy's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dmand AI has Dr. Mountjoy's licenses on file in 3 states: Colorado, Arizona and Iowa.

Specialties and state licenses

  • Internal medicine, ColoradoPrimaryLicense DR0062549 · taxonomy 207R00000X
  • Hematology and oncology, ArizonaLicense 007210 · taxonomy 207RH0003X
  • Iowa licenseLicense R10122

Clinical focus

Dmand AI lists anemia, chronic anemia, electrolyte disorders, insomnia, neutropenia and sepsis among the conditions Dr. Mountjoy treats.

Internists near Dr. Mountjoy

Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Luke J. Mountjoy billed Medicare for 6,369 services in 2024

CMS data shows 6,369 Medicare services from Dr. Mountjoy across 13 procedure codes in 2024, for 256 Medicare patients. Medicare paid $233,695 for them. Every service was in an office.

Medicare services, 20246,369
Medicare patients256
Paid by Medicare$233,695
Procedure codes13

Dr. Mountjoy's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Drugs given in the office
2023: 6,5672024: 5,20221%
Surgery
2023: 5002024: 5388%
Tests and treatments
2023: 4132024: 33020%
Office and hospital visits
2023: 2892024: 2993%

Dr. Mountjoy compared with the Colorado median for internists, 2024

  • Dr. Mountjoy
  • Colorado median
Medicare services
6,369vs 37716.9 times
Medicare patients
256vs 18638% above
Part D claims
897vs 3182.8 times

Medians across 1,630 internists in Colorado with Dmand AI profiles that report each measure.

Dr. Mountjoy's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Mountjoy

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Luke J. Mountjoy treated 256 Medicare patients in 2024, average age 72

CMS counts 256 Medicare patients who saw Dr. Mountjoy in 2024. The largest group is 65 to 74, with 156 patients. 69% of them have high blood pressure, and 64% have high cholesterol. 5% are also on Medicaid. Their average risk score is 2.76, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Mountjoy's median patient age at 67, with 43% women.

Medicare patients, 2024256
Average age72
Average risk score2.76
Also on Medicaid5%

Dr. Mountjoy's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Mountjoy's Medicare patients by sex, 2024

  • Women9638%
  • Men16063%

Chronic conditions among Dr. Mountjoy's Medicare patients, 2024

  1. High blood pressure69%
  2. High cholesterol64%
  3. Arthritis40%
  4. Ischemic heart disease34%
  5. Mood disorders30%
  6. Anxiety29%
  7. Depression28%
  8. Chronic kidney disease25%

Share of Medicare patients with each condition. A patient can have several.

Dr. Mountjoy's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 67

Patient panel by sex, all payers

  • Women43%
  • Men56%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Luke J. Mountjoy wrote 1,241 Medicare Part D claims in 2024

In 2024, Dr. Mountjoy wrote 1,241 Medicare Part D claims for 124 patients. 68% of them were for generic drugs. CMS names the drug for 897 of them, across 30 drugs with 11 or more claims each, at $2,525,687 in total drug cost. In 2023, CMS named 742 claims across 35 drugs.

Part D claims, 20241,241
Drugs named by CMS30
Total drug cost$2.5M
Part D patients124

Dr. Mountjoy's Part D claims by kind of drug, 2024

  • Generic845 claims68%
  • Brand-name and other396 claims32%

Dr. Mountjoy's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Mountjoy's Part D claims, 2024

  • Opioids1%15 of 1,241 claims
  • Antibiotics11%131 of 1,241 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 7422024: 89721%

Drugs named by CMS: 30 in 2024, 35 in 2023.

See all prescribing by Dr. Mountjoy

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Luke J. Mountjoy offers telehealth to Medicare patients

Dr. Mountjoy accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Mountjoy as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. Luke J. Mountjoy has 16 publications on record

Dmand AI links 16 papers to Dr. Mountjoy, published from 2017 to 2025. 2020 was the busiest year, with 6. The most frequent topics are Hematopoietic Stem Cell Transplantation, Transplantation Conditioning and Immunotherapy, Adoptive. Dr. Mountjoy has published most often in Am J Clin Oncol. Dr. Mountjoy's most frequent co-authors are Daniel H. Ahn, DO, Mitesh J. Borad, MD and Nandita Khera, MD.

Papers16
Years published2017 to 2025

Dr. Mountjoy's papers by year, 2017 to 2025

Topics Dr. Mountjoy writes about most

  • Hematopoietic Stem Cell Transplantation
  • Transplantation Conditioning
  • Immunotherapy, Adoptive

Dr. Mountjoy's most frequent co-authors

Recent publications by Dr. Mountjoy

See all 16 publications and co-authors

See who Dr. Mountjoy researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Mountjoy works with, so you can find a warm path to the right internists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Luke J. Mountjoy received $1,243 in industry payments from 2020 to 2025

CMS Open Payments shows 53 general payments to Dr. Mountjoy from 12 drug and device companies from 2020 to 2025. Food and beverage make up the largest share, 99% of the total. Celgene Corporation paid the most, $420. It also lists 1 research payment totaling $550 in 2025, naming 1 clinical trial.

General payments to Dr. Mountjoy by program year, 2020 to 2025

General payments to Dr. Mountjoy by kind, 2020 to 2025

$1.2Kin total
  • Food and beverage$1,22499%
  • Education$181%

Companies that paid Dr. Mountjoy the most, 2020 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Mountjoy

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Luke J. Mountjoy graduated from Des Moines University of Osteopathic Medicine and Health Sciences

Dr. Mountjoy graduated from Des Moines University of Osteopathic Medicine and Health Sciences in 2014.

  1. Medical schoolDes Moines University of Osteopathic Medicine and Health Sciences

Source: Dmand AI Professional Profile Data

Dr. Luke J. Mountjoy accepts plans from 17 insurance carriers

Dr. Mountjoy is in network with 17 carriers, including Aetna, Elevance and United Healthcare. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.

Plan types Dr. Mountjoy accepts, by number of carriers

  1. PPO12
  2. Medicare10
  3. HMO9
  4. POS6
  5. EPO4
  6. Medicaid2

Source: Dmand AI Insurance Network Data

Sources for Dr. Luke J. Mountjoy's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Luke J. Mountjoy

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Luke J. Mountjoy's NPI number?

Dr. Luke J. Mountjoy's NPI number is 1447665906. It was assigned on June 24, 2014, and it is active in the NPI Registry.

What kind of doctor is Dr. Luke J. Mountjoy?

Dr. Luke J. Mountjoy is an internist in Denver, Colorado. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Luke J. Mountjoy practice?

Dr. Mountjoy practices at 1721 E 19th Ave, Denver, CO 80218. Dr. Mountjoy's primary practice is HealthONE Clinic Services - Oncology Hematology in Denver, Colorado. Dmand AI also links Dr. Mountjoy to 1 hospital, 1 group practice or clinic and 1 medical group.

What is Dr. Luke J. Mountjoy's office phone number?

The practice phone on file for Dr. Mountjoy is (720) 754-4800.

What is Dr. Luke J. Mountjoy's medical license number?

Dr. Mountjoy holds Colorado license DR0062549, one of the licenses on file in 3 states.

Which states has Dr. Luke J. Mountjoy been licensed in?

Dmand AI has state licenses on file for Dr. Mountjoy in Colorado, Arizona and Iowa.

Which hospitals is Dr. Luke J. Mountjoy affiliated with?

Dr. Mountjoy is affiliated with HCA HealthONE Presbyterian St. Luke's. Dmand AI links Dr. Mountjoy to 1 more hospital.

What medical group is Dr. Luke J. Mountjoy part of?

Dr. Mountjoy is linked to HCA HealthONE Physicians. Dmand AI links Dr. Mountjoy to 1 more medical group.

Does Dr. Luke J. Mountjoy accept Medicare?

Yes. CMS data shows Dr. Mountjoy billed Medicare for 6,369 services in 2024, and Dr. Mountjoy accepts Medicare assignment.

Does Dr. Luke J. Mountjoy offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Mountjoy as offering telehealth services.

Show 9 more questionsShow fewer questions

How many Medicare patients does Dr. Luke J. Mountjoy see?

CMS counts 256 Medicare patients who saw Dr. Mountjoy in 2024, with an average age of 72.

What services does Dr. Luke J. Mountjoy bill to Medicare?

In 2024, Dr. Mountjoy's most billed Medicare services were injected or infused drug (J9144), injected or infused drug (J1568) and surgery: heart and blood vessels (36415).

Where did Dr. Luke J. Mountjoy go to medical school?

Dr. Mountjoy graduated from Des Moines University of Osteopathic Medicine and Health Sciences in 2014.

What drugs does Dr. Luke J. Mountjoy prescribe most?

In 2024 Medicare Part D data, Dr. Mountjoy's most prescribed drugs by claims were Acyclovir, Sulfamethoxazole-Trimethoprim and Valacyclovir.

Has Dr. Luke J. Mountjoy received payments from drug or device companies?

CMS Open Payments shows $1,243 in general payments to Dr. Mountjoy from 12 companies from 2020 to 2025. The largest total came from Celgene Corporation.

How long has Dr. Luke J. Mountjoy been practicing?

Dr. Mountjoy graduated from medical school in 2014, 12 years ago.

Does Dr. Luke J. Mountjoy do research?

Dmand AI links 16 publications to Dr. Mountjoy, published from 2017 to 2025.

Who does Dr. Luke J. Mountjoy publish with?

Dr. Mountjoy's most frequent co-authors are Daniel H. Ahn, DO (3 shared papers), Mitesh J. Borad, MD (3 shared papers) and Nandita Khera, MD (3 shared papers).

What insurance does Dr. Luke J. Mountjoy accept?

Dr. Mountjoy is in network with 17 carriers, including Aetna, Elevance and United Healthcare. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.

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