Gregory Barron, MD
NPI 1871859801ActiveIndividual· Internal Medicine, Rheumatology· Denver, CO
Internal Medicine, Rheumatology (MD) in Denver, Colorado, trained at University of Texas Medical Branch at Galveston (class of 2012). In 2024 Medicare paid $1,757,724 for 512 patients, and Part D covered 1,685 of their prescriptions, 86% of them generic. Novartis Pharmaceuticals Corporation was the largest of 7 companies reporting payments in 2025, $512.03 in all, mostly food and beverage.
Overview
| NPI | 1871859801 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 4, 2012 |
| Last updated in NPPES | Sep 7, 2023 |
| Certified by provider | Sep 7, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Rheumatology Primary | 207RR0500X | DR.0055679 | CO |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Rheumatology (CO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 512 |
|---|---|
| Services billed | 117,718 across 74 procedure codes |
| Paid by Medicare | $1,757,724 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,685 · 3,602 30-day fills |
|---|---|
| Patients | 343 |
| Total drug cost | $913,127 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | University of Texas Medical Branch at Galveston |
|---|---|
| Graduation year | 2012 |
| Medicare specialty | Rheumatology |
| Telehealth | Offers telehealth |
Medical groups
- Denver Health and Hospital AuthorityDenver, CO · 849 clinicians
- Denver Arthritis Clinic PCLone Tree, CO · 13 clinicians
Hospital affiliations
- Adventhealth Castle RockCastle Rock, CO
- Adventhealth ParkerParker, CO
- Denver Health & Hospital AuthorityDenver, CO
- The Medical Center of Aurora & South HospitalAurora, CO
- Valley View Hospital AssociationGlenwood Springs, CO
Industry payments (Open Payments)
- 2025$512.03 · 27 payments from 7 companies
- 2024$265.96 · 12 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novartis Pharmaceuticals Corporation | $216.29 | 13 |
| Glaxosmithkline, LLC. | $94.26 | 5 |
| Amgen Inc. | $90.82 | 4 |
| Actelion Pharmaceuticals US, Inc. | $32.43 | 1 |
| E.R. Squibb & Sons, L.L.C. | $32.23 | 2 |
What the 2025 payments were for
- Food and Beverage$512.03 · 27 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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