Gregory Barron, MD
Rheumatology Physician · Denver, CO
Gregory Barron, MD is a rheumatology physician with a practice address in Denver, Colorado, and NPI 1871859801, issued on Apr 4, 2012. Check the license (Colorado DR.0055679, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Gregory Barron
- Credential
- MD
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- DR.0055679 CO
Self-reported in NPPES; status is on the state search - Practice location
- 7111 E Lowry Blvd Ste 200, Denver, CO 80230
- Phone
- (303) 394-2828
- Enumerated
- Apr 4, 2012
- Record last updated
- Sep 7, 2023
- Fax
- (303) 320-0242
- Medicare enrollment
- Enrolled (PECOS I20170714002448); accepts Medicare assignment
- Medical or professional school
- University Of Texas Medical Branch At Galveston, 2012
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 145 in Colorado → Look up another NPI →
Also registered at 7111 E Lowry Blvd Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Christopher Antolini, MDRheumatology Physician1750302592
- Adam Berlinberg, MDRheumatology Physician1255728085
- Vance Bray, MDRheumatology Physician1568456127
- Prateek Chaudhary, DORheumatology Physician1760708507
- David Defrancisco, MDRheumatology Physician1366897209
- Mary Demoruelle, M.D.Rheumatology Physician1992900575
Verify Gregory Barron in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license DR.0055679Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
15% fewer Medicare Part D claims than the average rheumatology physician in 2024
1,685 Medicare Part D claims for 343 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. 151 claims were for opioids.
Most prescribed
- Prednisone191 claims
- Methotrexate187 claims
- Hydroxychloroquine Sulfate152 claims
- Duloxetine Hcl105 claims
- Tramadol Hcl98 claims
- Allopurinol88 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): 99 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.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $242.82
11 payments; by number, the most common kind was food and beverage; the largest payer was Kiniksa Pharmaceuticals International, plc. The 4,486 providers of this specialty with any payment received $8,538.33 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Denver Arthritis Clinic PCLone Tree, CO
- Denver Health And Hospital AuthorityDenver, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory Barron among 145 rheumatology physician records in Colorado
Gregory Barron, MD is one of 145 rheumatology physician records with a practice address in Colorado. 81% 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 70% of them.
- NPI issued2012 · 70% of these records are older, 27% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2012 · median 2004 among the 102 with a school on file
- Record last updated2023 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in Colorado
There are 145 rheumatology physician records in Colorado.
All 145 in Colorado → Every provider in Denver → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Christopher Antolini, MDDenver, CO 802301750302592
- Adam Berlinberg, MDDenver, CO 802301255728085
- Vance Bray, MDDenver, CO 802301568456127
- Prateek Chaudhary, DODenver, CO 802301760708507
- David Defrancisco, MDDenver, CO 802301366897209
- Mary Demoruelle, M.D.Denver, CO 802301992900575
- Timothy Gensler, MDDenver, CO 802301689668170
- Kenneth Glassman, MDDenver, CO 802301548255078
Common questions
What is Gregory Barron, MD's NPI number?
Gregory Barron, MD's National Provider Identifier (NPI) is 1871859801, issued on Apr 4, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Barron, MD located?
The NPPES record lists a practice address at 7111 E Lowry Blvd Ste 200, Denver, CO, 80230. Phone: (303) 394-2828. Providers update this record themselves, so call before visiting.
How can I verify Gregory Barron, MD's license?
NPPES lists Colorado license number DR.0055679, 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 Barron, MD prescribe under Medicare Part D?
In 2024, Gregory Barron, MD had 1,685 Medicare Part D claims for 343 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.
What is Gregory Barron, MD's MIPS final score?
The 2023 MIPS final score is 99 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.