NPPES file of Aug 9, 2026

Eugene I. Chung, M.D.

Radiation Oncology Physician · Denver, CO

Eugene I. Chung, M.D. is a radiation oncology physician with a practice address in Denver, Colorado, and NPI 1285834945, issued on Jul 20, 2007. Check the license (Colorado DR.0057091, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1285834945
Name
Eugene I. Chung
Credential
M.D.
Primary taxonomy
Radiation Oncology Physician 2085R0001X
License numbers
DR.0057091 CO
A120492 CA
Self-reported in NPPES; status is on the state search
Practice location
4567 E 9TH Ave, Denver, CO 80220
Phone
(303) 338-4545
Enumerated
Jul 20, 2007
Record last updated
Dec 31, 2025
Medicaid ID
9000143784 CO
Medicare enrollment
Enrolled (PECOS I20160803003151); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 4567 E 9TH Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Mitchell Adler, MDObstetrics & Gynecology Physician1649276916
  2. Adam BarkinEmergency Medicine Physician1639169113
  3. Dominique Beaufils-Brehm, PTPhysical Therapist1487642344
  4. Donna Bohannan, PTPhysical Therapist1215918982
  5. Kayleigh Boveri, LCSWClinical Social Worker1235905522
  6. Donnell Bradford, MDObstetrics & Gynecology Physician1770522054

Verify Eugene I. Chung in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersColorado Medical Board
    Search for license DR.0057091
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Colorado license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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1% fewer Medicare Part D claims than the average radiation oncology physician in 2024

132 Medicare Part D claims for 61 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. 21 claims were for opioids.

  1. Eugene Chung132
  2. Specialty average134

Most prescribed

  1. Mometasone Furoate29 claims
  2. Lidocaine Hcl Viscous16 claims
  3. Omeprazole12 claims
  4. Oxycodone Hcl12 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

No measured MIPS final score for 2023

CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $640.10

5 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 3,275 providers of this specialty with any payment received $1,897.85 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Eugene Chung$640.10
  2. Specialty average$1,897.85

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Colorado Permanente Medical Group PCDenver, CO

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Eugene I. Chung among 111 radiation oncology physician records in Colorado

Eugene I. Chung, M.D. is one of 111 radiation oncology physician records with a practice address in Colorado. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 42% of them.

  • NPI issued2007 · 42% of these records are older, 44% newer
  • In a Medicare fileYes · 86% of these records are
  • In the CMS Doctors and Clinicians fileYes · 79% of these records are
  • Graduated2007 · median 2007 among the 88 with a school on file
  • Record last updated2025 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Radiation Oncology Physician providers in Colorado

There are 111 radiation oncology physician records in Colorado.

The 8 radiation oncology physician records with the nearest ZIP codes

  1. Paige Dorn, M.D.Denver, CO 802201679740914
  2. Ari Ballonoff, MDDenver, CO 802181689720260
  3. Mark Chidel, MDDenver, CO 802181780711366
  4. Christopher Deig, M.D.Denver, CO 802181043743883
  5. Kathryn Howell, MDDenver, CO 802181811971542
  6. James Jacobs, MDDenver, CO 802181861619173
  7. Michelle Klem, M.D.Denver, CO 802181790989556
  8. Brandon Patton, MDDenver, CO 802181659572758

Common questions

What is Eugene I. Chung, M.D.'s NPI number?

Eugene I. Chung, M.D.'s National Provider Identifier (NPI) is 1285834945, issued on Jul 20, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Eugene I. Chung, M.D. located?

The NPPES record lists a practice address at 4567 E 9TH Ave, Denver, CO, 80220. Phone: (303) 338-4545. Providers update this record themselves, so call before visiting.

How can I verify Eugene I. Chung, M.D.'s license?

NPPES lists Colorado license number DR.0057091, as entered by the provider. Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Eugene I. Chung, M.D. prescribe under Medicare Part D?

In 2024, Eugene I. Chung, M.D. had 132 Medicare Part D claims for 61 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.

What is Eugene I. Chung, M.D.'s MIPS final score?

CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.