Dr. Gregory Paul Downey, MD

  • Denver, CO
  • Pulmonologist
NPI1164598116PAC ID6305847831
Medicare services, 2024
77
Medicare patients, 2024
47
Part D claims, 2024
265
Publications
67
Clinical trials
1
Practice address
1400 Jackson St, Denver, CO 80206
Practice phone
Call (303) 388-4461
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

National Jewish Health

Hospital · Denver, Colorado

See all 2 affiliations

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Dr. Gregory Paul Downey is a pulmonologist in Denver, Colorado

Dr. Downey practices at National Jewish Health in Denver, Colorado, part of National Jewish Health.

Dr. Downey's NPI, 1164598116, was assigned on November 28, 2006. Dr. Downey holds Colorado license 26339.

NPI and contact details
Medicare PAC ID
6305847831
NPI enumeration date
November 28, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(303) 388-4461
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
72
Medical school graduation
1980

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

Dr. Gregory Paul Downey practices at National Jewish Health in Denver, Colorado

Dr. Downey's primary practice is National Jewish Health, at 1400 Jackson St, Denver, CO 80206 in Denver County. The practice phone is (303) 388-4461.

Source: Dmand AI Affiliation Data

Dr. Gregory Paul Downey is affiliated with 1 site of care and 1 medical group

Dr. Downey's primary practice is National Jewish Health in Denver, Colorado, part of National Jewish Health. The medical group on file is National Jewish Health. Dr. Downey's employer is on file too: a hospital.

See all 2 affiliations for Dr. Downey

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Gregory Paul Downey's practice

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

EHR by site
SiteEHR vendor and product
National Jewish HealthAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dmand AI maps EHR vendors, IT decision makers and buying committees across National Jewish Health and 6.2K+ hospitals, with verified contacts in the same login.

Dr. Gregory Paul Downey is one of 254 pulmonologists in Colorado

Pulmonary disease is Dr. Downey's primary specialty in the NPI Registry, under taxonomy code 207RP1001X. Dr. Downey is licensed in Colorado.

Specialties and state licenses

  • Pulmonary disease, ColoradoPrimaryLicense 26339 · taxonomy 207RP1001X

Pulmonologists near Dr. Downey

Counts of pulmonologists 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. Gregory Paul Downey billed Medicare for 77 services in 2024

CMS data shows 77 Medicare services from Dr. Downey across 1 procedure code in 2024, all of them office visits, for 47 Medicare patients. Medicare paid $8,502 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 202477
Medicare patients47
Paid by Medicare$8,502
Procedure codes1

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

  • 2023
  • 2024
Office and hospital visits
2023: 662024: 7717%

Dr. Downey compared with the Colorado median for pulmonologists, 2024

  • Dr. Downey
  • Colorado median
Medicare services
77vs 35478% below
Medicare patients
47vs 19576% below
Part D claims
140vs 37663% below

Medians across 247 pulmonologists in Colorado with Dmand AI profiles that report each measure.

Dr. Downey'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. Downey

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

Dr. Gregory Paul Downey treated 47 Medicare patients in 2024, average age 76

CMS counts 47 Medicare patients who saw Dr. Downey in 2024. The largest group is 75 to 84, with 22 patients. 75% of them have high cholesterol, and 68% have high blood pressure. Their average risk score is 1.41, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Downey's median patient age at 78, with 65% women.

Medicare patients, 202447
Average age76
Average risk score1.41

Dr. Downey's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Downey's Medicare patients by sex, 2024

  • Women3472%
  • Men1328%

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

  1. High cholesterol75%
  2. High blood pressure68%
  3. Arthritis64%
  4. COPD57%
  5. Asthma55%
  6. Osteoporosis40%
  7. Ischemic heart disease36%
  8. Anxiety26%

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

Dr. Downey's patients across all payers

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

Patient panel by age, all payers

Median age 78

Patient panel by sex, all payers

  • Women65%
  • Men33%

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

Dr. Gregory Paul Downey wrote 265 Medicare Part D claims in 2024

In 2024, Dr. Downey wrote 265 Medicare Part D claims for 39 patients. 40% of them were for generic drugs. CMS names the drug for 140 of them, across 6 drugs with 11 or more claims each, at $319,206 in total drug cost. In 2023, CMS named 96 claims across 6 drugs.

Part D claims, 2024265
Drugs named by CMS6
Total drug cost$319,206
Part D patients39

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

  • Generic105 claims40%
  • Brand-name160 claims60%

Dr. Downey'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.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 962024: 14046%

Drugs named by CMS: 6 in 2024, 6 in 2023.

See all prescribing by Dr. Downey

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. Gregory Paul Downey scored 82 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 82 out of 100 for Dr. Downey for performance year 2024, reported as part of a group. Dr. Downey accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Downey as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Downey's MIPS scores, performance year 2024

  • 82of 100Final score
  • 69.4of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 65of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Dr. Gregory Paul Downey has 67 publications on record

Dmand AI links 67 papers to Dr. Downey, published from 2010 to 2023. 2021 was the busiest year, with 6. The most frequent topics are Lung, Signal Transduction and Acute Lung Injury. Dr. Downey has published most often in Am J Respir Crit Care Med. Dr. Downey's most frequent co-authors are Yael Aschner, MD, Rachel L. Zemans, MD and Scott Kristjon Young, MD.

Papers67
Years published2010 to 2023

Dr. Downey's papers by year, 2013 to 2023

Topics Dr. Downey writes about most

  • Lung
  • Signal Transduction
  • Acute Lung Injury
  • Particulate Matter
  • Afghanistan
  • COVID-19
  • Matrix Metalloproteinase 3
  • SARS-CoV-2

Dr. Downey's most frequent co-authors

Recent publications by Dr. Downey

See all 67 publications and co-authors

See who Dr. Downey researches with

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

How network discovery works

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

Dr. Gregory Paul Downey has worked on 1 clinical trial

Dmand AI links Dr. Downey to 1 clinical trial. 1 is still active or recruiting. Conditions studied include Idiopathic Pulmonary Fibrosis and Pulmonary Fibrosis.

Conditions in Dr. Downey's trials

  • Idiopathic Pulmonary Fibrosis
  • Pulmonary Fibrosis

Investigators on the most trials with Dr. Downey

Recent clinical trials with Dr. Downey

Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)

Dr. Gregory Paul Downey received $8,456 in industry payments from 2017 to 2025

CMS Open Payments shows 17 general payments to Dr. Downey from 5 drug and device companies from 2017 to 2025. Consulting fees make up the largest share, 90% of the total. AstraZeneca Pharmaceuticals LP paid the most, $7,246.

General payments to Dr. Downey by program year, 2017 to 2025

General payments to Dr. Downey by kind, 2017 to 2025

$8.5Kin total
  • Consulting fees$7,62490%
  • Travel and lodging$4676%
  • Food and beverage$3654%

Companies that paid Dr. Downey the most, 2017 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Downey

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

Sources for Dr. Gregory Paul Downey'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 phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy 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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Clinical trials and co-investigatorsDmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
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. Gregory Paul Downey

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. Gregory Paul Downey's NPI number?

Dr. Gregory Paul Downey's NPI number is 1164598116. It was assigned on November 28, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Gregory Paul Downey?

Dr. Gregory Paul Downey is a pulmonologist in Denver, Colorado. The primary specialty in the NPI Registry is Pulmonary Disease Physician (taxonomy code 207RP1001X).

Where does Dr. Gregory Paul Downey practice?

Dr. Downey practices at 1400 Jackson St, Denver, CO 80206. Dr. Downey's primary practice is National Jewish Health in Denver, Colorado, part of National Jewish Health.

What is Dr. Gregory Paul Downey's office phone number?

The practice phone on file for Dr. Downey is (303) 388-4461.

What is Dr. Gregory Paul Downey's medical license number?

Dr. Downey holds Colorado license 26339.

Which hospitals is Dr. Gregory Paul Downey affiliated with?

Dr. Downey practices at National Jewish Health in Denver, Colorado.

What medical group is Dr. Gregory Paul Downey part of?

Dr. Downey is linked to National Jewish Health.

Does Dr. Gregory Paul Downey accept Medicare?

Yes. CMS data shows Dr. Downey billed Medicare for 77 services in 2024, and Dr. Downey accepts Medicare assignment.

Does Dr. Gregory Paul Downey offer telehealth?

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

What is Dr. Gregory Paul Downey's MIPS score?

Dr. Downey's MIPS final score for performance year 2024 is 82 out of 100, reported as part of a group.

Show 7 more questionsShow fewer questions

How many Medicare patients does Dr. Gregory Paul Downey see?

CMS counts 47 Medicare patients who saw Dr. Downey in 2024, with an average age of 76.

What services does Dr. Gregory Paul Downey bill to Medicare?

In 2024, Dr. Downey's most billed Medicare services were office visit, established patient (99215).

What drugs does Dr. Gregory Paul Downey prescribe most?

In 2024 Medicare Part D data, Dr. Downey's most prescribed drugs by claims were Arnuity Ellipta, Ofev and Prednisone.

Has Dr. Gregory Paul Downey received payments from drug or device companies?

CMS Open Payments shows $8,456 in general payments to Dr. Downey from 5 companies from 2017 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.

How long has Dr. Gregory Paul Downey been practicing?

Dr. Downey graduated from medical school in 1980, 46 years ago.

Does Dr. Gregory Paul Downey do research?

Dmand AI links 67 publications to Dr. Downey, published from 2010 to 2023. Dr. Downey has worked on 1 clinical trial.

Who does Dr. Gregory Paul Downey publish with?

Dr. Downey's most frequent co-authors are Yael Aschner, MD (11 shared papers), Rachel L. Zemans, MD (7 shared papers) and Scott Kristjon Young, MD (4 shared papers).

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