Geoffrey Allan Block, MD
NPI 1861474140ActiveIndividual· Internal Medicine, Nephrology· Lone Tree, CO
Internal Medicine, Nephrology (MD) in Lone Tree, Colorado, trained at University of Cincinnati College of Medicine (class of 1991). Part D covered 77 prescriptions written in 2024, 90% of them generic. Outset Medical Inc was the largest of 3 companies reporting payments in 2025, $15,218 in all, mostly speaking and faculty fees.
Overview
| NPI | 1861474140 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 14, 2005 |
| Last updated in NPPES | Apr 22, 2022 |
| Certified by provider | Apr 22, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 36176 | CO |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Nephrology (CO) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 77 · 160 30-day fills |
|---|---|
| Patients | 11 |
| Total drug cost | $7,330 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | University of Cincinnati College of Medicine |
|---|---|
| Graduation year | 1991 |
| Medicare specialty | Nephrology |
Medical group
- Rocky Mountain Kidney Care LLCAurora, CO · 17 clinicians
Industry payments (Open Payments)
- 2025$15,218 · 6 payments from 3 companies
- 2024$28,531 · 9 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Outset Medical Inc | $15,000 | 1 |
| Akebia Therapeutics Inc | $177.71 | 4 |
| Shionogi Inc | $40.00 | 1 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$15,000 · 1 payment
- Food and Beverage$217.71 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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