NPPES file of Aug 9, 2026

Gregory Blain Martin, M.D.

Vascular & Interventional Radiology Physician · Englewood, CO

Gregory Blain Martin, M.D. is a vascular & interventional radiology physician with a practice address in Englewood, Colorado, and NPI 1457529927, issued on Feb 18, 2008. Check the license (Colorado DR.0056120, 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
1457529927
Name
Gregory Blain Martin
Credential
M.D.
Primary taxonomy
Vascular & Interventional Radiology Physician 2085R0204X
License numbers
DR.0056120 CO
56120 CO
73301 CO
MD18497 HI
04-38620 KS
and 2 more
Self-reported in NPPES; status is on the state search
Practice location
501 E Hampden Ave, Englewood, CO 80113
Phone
(303) 761-9190
Enumerated
Feb 18, 2008
Record last updated
Mar 29, 2024
Fax
(720) 874-4462
Medicaid IDs
201127660A KS
72231033 NM
091605 AZ
1457529927 IA
Medicare enrollment
Enrolled (PECOS I20151222001121); accepts Medicare assignment
Medical or professional school
Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University, 2007
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.
Download card Updates feed

Also registered at 501 E Hampden Ave

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

  1. Simeon Abramson, MDDiagnostic Radiology Physician1730129859
  2. Juan Acosta, MDInternal Medicine Physician1316919350
  3. Diane Ampe, NNPNeonatal Nurse Practitioner1437113818
  4. Kristin AndersonHospitalist Physician1265744262
  5. Rebekah Ashcraft, RNRegistered Nurse1700622479
  6. Timbre Backen, DOStudent in an Organized Health Care Education/Training Program1811524150

Verify Gregory Blain Martin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersColorado Medical Board
    Search for license DR.0056120
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

23% fewer Medicare Part D claims than the average vascular & interventional radiology physician in 2024

58 Medicare Part D claims for 18 beneficiaries, against an average of 75 among the 1,444 providers of this specialty who prescribed in Part D. Brand-name drugs were 40% of claims.

  1. Gregory Martin58
  2. Specialty average75

Most prescribed

  1. Xarelto12 claims
  2. Eliquis11 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: $856.45

17 payments; by number, the most common kind was food and beverage; the largest payer was Inari Medical, Inc. The 3,457 providers of this specialty with any payment received $7,206.73 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Gregory Martin$856.45
  2. Specialty average$7,206.73

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

Bills Medicare through 4 group practices

  1. Banner Imaging Services Colorado LLCLoveland, CO
  2. Medical Imaging OF Colorado Radiology Imaging Assc PC Etal PTParker, CO
  3. Radiology Imaging Associates PCEnglewood, CO
  4. Ria Endovascular LLCGreenwood Village, CO

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

Gregory Blain Martin among 120 vascular & interventional radiology physician records in Colorado

Gregory Blain Martin, M.D. is one of 120 vascular & interventional radiology physician records with a practice address in Colorado. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 46% of them.

  • NPI issued2008 · 46% of these records are older, 46% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileYes · 80% of these records are
  • Graduated2007 · median 2009 among the 96 with a school on file
  • Record last updated2024 · 28% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0204X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Vascular & Interventional Radiology Physician providers in Colorado

There are 120 vascular & interventional radiology physician records in Colorado.

The 8 vascular & interventional radiology physician records with the nearest ZIP codes

  1. Benjamin Kassanoff, M.D.Englewood, CO 801131356345680
  2. Eric Malden, M.D.Englewood, CO 801131356395792
  3. Dominic Yee, M.D.Englewood, CO 801131750334884
  4. Ray Bradford, MDEnglewood, CO 801121518287176
  5. Anthony Brown, M.D.Englewood, CO 801121164743332
  6. Matthew Brown, M.D.Englewood, CO 801121891011383
  7. Jason Carroll, M.D.Englewood, CO 801121033417571
  8. Matthew Genet, MDEnglewood, CO 801121851765440

Common questions

What is Gregory Blain Martin, M.D.'s NPI number?

Gregory Blain Martin, M.D.'s National Provider Identifier (NPI) is 1457529927, issued on Feb 18, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Gregory Blain Martin, M.D. located?

The NPPES record lists a practice address at 501 E Hampden Ave, Englewood, CO, 80113. Phone: (303) 761-9190. Providers update this record themselves, so call before visiting.

How can I verify Gregory Blain Martin, M.D.'s license?

NPPES lists Colorado license number DR.0056120, 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 Gregory Blain Martin, M.D. prescribe under Medicare Part D?

In 2024, Gregory Blain Martin, M.D. had 58 Medicare Part D claims for 18 beneficiaries; the average among vascular & interventional radiology physician prescribers was 75. Part D covers Medicare prescriptions only.

What is Gregory Blain Martin, 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.