Colt Williams, M.D.
NPI 1740712108ActiveIndividual· Internal Medicine, Hematology & Oncology· Reno, NV
Internal Medicine, Hematology & Oncology (M.D.) with John A Shields MD and Steven A Schiff MD A Professional Corporation, practicing in Reno, Nevada. Their prescriptions cost Medicare Part D more than their services did: $2,857,116 for 1,011 claims, against $1,839,686 paid for services in 2024. Novartis Pharmaceuticals Corporation was the largest of 34 companies reporting payments in 2025, $3,657 in all, mostly food and beverage. Lists Barton Memorial Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1740712108 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 3, 2017 |
| Last updated in NPPES | Aug 30, 2023 |
| Certified by provider | Aug 30, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 23037 | NV |
| Internal Medicine, Hematology & Oncology | 207RH0003X | 67054 | MN |
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 - Internal Medicine (NV) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 273 |
|---|---|
| Services billed | 78,012 across 102 procedure codes |
| Paid by Medicare | $1,839,686 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,011 · 1,204 30-day fills |
|---|---|
| Patients | 130 |
| Total drug cost | $2,857,116 |
| Generic share | 71% of claims |
Education and affiliations
| Graduation year | 2017 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- John A Shields MD and Steven A Schiff MD A Professional CorporationReno, NV · 20 clinicians
Hospital affiliations
- Barton Memorial HospitalSouth Lake Tahoe, CA
- Carson Tahoe Regional Medical CenterCarson City, NV
- Carson Valley HealthGardnerville, NV
- Renown Regional Medical CenterReno, NV
- South Lyon Medical CenterYerington, NV
Industry payments (Open Payments)
- 2025$3,657 · 96 payments from 34 companies
- 2024$2,252 · 74 payments from 23 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novartis Pharmaceuticals Corporation | $1,149 | 15 |
| Daiichi Sankyo Inc. | $914.00 | 15 |
| Astrazeneca Pharmaceuticals LP | $218.93 | 8 |
| Astellas Pharma US Inc | $150.25 | 5 |
| Takeda Pharmaceuticals U.S.A., Inc. | $140.81 | 7 |
What the 2025 payments were for
- Food and Beverage$1,719 · 81 payments
- Long term medical supply or device loan$1,065 · 12 payments
- Consulting Fee$705.00 · 1 payment
- Education$167.49 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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