NPPES file of Aug 9, 2026

Christopher Leeds Geiger, M.D.

Medical Oncology Physician · Aurora, CO

Christopher Leeds Geiger, M.D. is a medical oncology physician with a practice address in Aurora, Colorado, and NPI 1124413430, issued on Apr 2, 2015. Check the license (Colorado DR.0065500, 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
1124413430
Name
Christopher Leeds Geiger
Credential
M.D.
Primary taxonomy
Medical Oncology Physician 207RX0202X
License numbers
DR.0065500 CO
TL.0006948 CO
Self-reported in NPPES; status is on the state search
Practice location
1665 Aurora CT, Aurora, CO 80045
Phone
(720) 848-0000
Enumerated
Apr 2, 2015
Record last updated
Sep 21, 2021 (not updated in 5 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1665 Aurora CT

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

  1. Theodore Alkousakis, M.D.Dermatology Physician1992830269
  2. Marcus Alt, PH.D.Clinical Psychologist1013462639
  3. Julia Andrade, PA-CMedical Physician Assistant1174241822
  4. Mathew Angelos, MD, PHDHematology & Oncology Physician1487141149
  5. Diana Antenucci, NPAdult Health Nurse Practitioner1902583016
  6. Cynthia Armstrong, PT, DPTPhysical Therapist1730192642

Verify Christopher Leeds Geiger in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersColorado Medical Board
    Search for license DR.0065500
    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

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24% fewer Medicare Part D claims than the average medical oncology physician in 2024

531 Medicare Part D claims for 60 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 29 claims were for opioids.

  1. Christopher Geiger531
  2. Specialty average703

Most prescribed

  1. Abiraterone Acetate119 claims
  2. Prednisone88 claims
  3. Dexamethasone33 claims
  4. Nubeqa29 claims
  5. Bicalutamide21 claims
  6. Prochlorperazine Maleate19 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.

The MIPS final score for 2023 (Medicare payment program): 97.6 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score86.5
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

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

Christopher Leeds Geiger among 108 medical oncology physician records in Colorado

Christopher Leeds Geiger, M.D. is one of 108 medical oncology physician records with a practice address in Colorado. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 81% of them.

  • NPI issued2015 · 81% of these records are older, 17% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileNo · 75% of these records are
  • Record last updated2021 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RX0202X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Medical Oncology Physician providers in Colorado

There are 108 medical oncology physician records in Colorado.

The 8 medical oncology physician records with the nearest ZIP codes

  1. Virginia Borges, MDAurora, CO 800451013007699
  2. Paul Bunn, MDAurora, CO 800451285724963
  3. David Camidge, MDAurora, CO 800451336239912
  4. Anthony Elias, MDAurora, CO 800451679663355
  5. L Glode, MDAurora, CO 800451730279415
  6. Rene Gonzalez-Cotarelo, MDAurora, CO 800451548350226
  7. Jonathan Gutman, MDAurora, CO 800451003882952
  8. Patrick Hu, MD, PHDAurora, CO 800451124107032

Common questions

What is Christopher Leeds Geiger, M.D.'s NPI number?

Christopher Leeds Geiger, M.D.'s National Provider Identifier (NPI) is 1124413430, issued on Apr 2, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Christopher Leeds Geiger, M.D. located?

The NPPES record lists a practice address at 1665 Aurora CT, Aurora, CO, 80045. Phone: (720) 848-0000. Providers update this record themselves, so call before visiting.

How can I verify Christopher Leeds Geiger, M.D.'s license?

NPPES lists Colorado license number DR.0065500, 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 Christopher Leeds Geiger, M.D. prescribe under Medicare Part D?

In 2024, Christopher Leeds Geiger, M.D. had 531 Medicare Part D claims for 60 beneficiaries; the average among medical oncology physician prescribers was 703. Part D covers Medicare prescriptions only.

What is Christopher Leeds Geiger, M.D.'s MIPS final score?

The 2023 MIPS final score is 97.6 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.