NPPES file of Aug 9, 2026

Gemlyn George, MD

Hematology & Oncology Physician · Aurora, CO

Gemlyn George, MD is a hematology & oncology physician with a practice address in Aurora, Colorado, and NPI 1336496785, issued on Aug 4, 2012. Check the license (Colorado DR.0064912, 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
1336496785
Name
Gemlyn George
Credential
MD
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License numbers
DR.0064912 CO
MT200983 PA
6718920 WI
Self-reported in NPPES; status is on the state search
Practice location
1665 Aurora CT FL 3, Aurora, CO 80045
Phone
(720) 848-0000
Enumerated
Aug 4, 2012
Record last updated
Feb 4, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20210203001743); 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 1665 Aurora CT FL 3

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

  1. Sherwin FazelpourStudent in an Organized Health Care Education/Training Program1174086326
  2. Kathleen Logan, PAMedical Physician Assistant1437518529
  3. Ramiro Rodriguez, MDDermatology Physician1720660202
  4. Alexandra Waddell, FNPFamily Nurse Practitioner1770212805
  5. Kelsey Watson, NPAdult Health Nurse Practitioner1538764303
  6. Sophia Zita, MDDermatology Physician1841940442

Verify Gemlyn George in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersColorado Medical Board
    Search for license DR.0064912
    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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39% fewer Medicare Part D claims than the average hematology & oncology physician in 2024

534 Medicare Part D claims for 59 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. 284 claims were for opioids.

  1. Gemlyn George534
  2. Specialty average877

Most prescribed

  1. Oxycodone Hcl106 claims
  2. Methadone Hcl48 claims
  3. Hydroxyurea40 claims
  4. Hydrocodone-Acetaminophen39 claims
  5. Hydromorphone Hcl36 claims
  6. Xarelto31 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).

Industry payments in 2024: $383.81

5 payments; by number, the most common kind was food and beverage; the largest payer was Genzyme Corporation. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Gemlyn George$383.81
  2. Specialty average$7,481.41

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. University Physicians IncorporatedAurora, CO

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

Gemlyn George among 212 hematology & oncology physician records in Colorado

Gemlyn George, MD is one of 212 hematology & oncology physician records with a practice address in Colorado. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 79% of them.

  • NPI issued2012 · 79% of these records are older, 16% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated2008 · median 2004 among the 150 with a school on file
  • Record last updated2021 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hematology & Oncology Physician providers in Colorado

There are 212 hematology & oncology physician records in Colorado.

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Angela Davies, M.D.Aurora, CO 800451346222114
  2. Jennifer Diamond, MDAurora, CO 800451912053513
  3. Thomas Flaig, MDAurora, CO 800451881620326
  4. Bradley Haverkos, MDAurora, CO 800451679707319
  5. Manali Kamdar, MDAurora, CO 800451184817959
  6. Madeleine Kane, M.D.Aurora, CO 800451528034964
  7. Tomer Mark, MD, MSCAurora, CO 800451891981346
  8. Ara Metjian, MDAurora, CO 800451679635502

Common questions

What is Gemlyn George, MD's NPI number?

Gemlyn George, MD's National Provider Identifier (NPI) is 1336496785, issued on Aug 4, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Gemlyn George, MD located?

The NPPES record lists a practice address at 1665 Aurora CT FL 3, Aurora, CO, 80045. Phone: (720) 848-0000. Providers update this record themselves, so call before visiting.

How can I verify Gemlyn George, MD's license?

NPPES lists Colorado license number DR.0064912, 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 Gemlyn George, MD prescribe under Medicare Part D?

In 2024, Gemlyn George, MD had 534 Medicare Part D claims for 59 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.

What is Gemlyn George, MD'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.