Robert Randal Geier
NPI 1336673102ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Knoxville, TN
Internal Medicine, Endocrinology, Diabetes & Metabolism in Knoxville, Tennessee, trained at University of Kentucky College of Medicine (class of 2022). Their prescriptions cost Medicare Part D more than their services did: $372,987 for 1,689 claims, against $131,029 paid for services in 2024. Dexcom, Inc. was the largest of 17 companies reporting payments in 2025, $1,236 in all, mostly food and beverage.
Overview
| NPI | 1336673102 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Apr 18, 2017 |
| Last updated in NPPES | Aug 16, 2024 |
| Certified by provider | Aug 16, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | 4716 | TN |
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 - Endocrinology (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 264 |
|---|---|
| Services billed | 8,408 across 58 procedure codes |
| Paid by Medicare | $131,029 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,689 · 3,593 30-day fills |
|---|---|
| Patients | 261 |
| Total drug cost | $372,987 |
| Generic share | 55% of claims |
Education and affiliations
| Medical school | University of Kentucky College of Medicine |
|---|---|
| Graduation year | 2022 |
| Medicare specialty | Endocrinology |
Medical group
- Endocrinology Consultants of East TnKnoxville, TN · 37 clinicians
Hospital affiliations
- Fort Sanders Regional Medical CenterKnoxville, TN
- Parkwest Medical CenterKnoxville, TN
- Starr Regional Medical Center AthensAthens, TN
- University Health System, IncKnoxville, TN
Industry payments (Open Payments)
- 2025$1,236 · 71 payments from 17 companies
- 2024$1,108 · 64 payments from 18 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Dexcom, Inc. | $202.22 | 10 |
| Novartis Pharmaceuticals Corporation | $175.85 | 12 |
| Abbott Laboratories | $150.96 | 10 |
| Neurocrine Biosciences, Inc. | $135.67 | 6 |
| Amgen Inc. | $83.00 | 5 |
What the 2025 payments were for
- Food and Beverage$1,236 · 71 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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