Thomas Sigurd Griggs, MD
NPI 1891743373ActiveIndividual· Radiology, Diagnostic Radiology· Oklahoma City, OK
Radiology, Diagnostic Radiology (MD) with Singleton Associates PA and 9 other groups, practicing in Oklahoma City, Oklahoma. Medicare paid $317,399 for services to 5,933 patients in 2024. Lists Community Hospital, LLC and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1891743373 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 5, 2006 |
| Last updated in NPPES | Nov 4, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Radiology, Diagnostic Radiology Primary | 2085R0202X | 19576 | OK |
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 - Diagnostic Radiology (OK); Practitioner - Diagnostic Radiology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 5,933 |
|---|---|
| Services billed | 22,787 across 176 procedure codes |
| Paid by Medicare | $317,399 |
Education and affiliations
| Graduation year | 1995 |
|---|---|
| Medicare specialty | Diagnostic Radiology |
Medical groups
- Singleton Associates PATyler, TX · 838 clinicians
- Eagle Partners, PLLCHouston, TX · 171 clinicians
- North Star McD LLCFort Worth, TX · 80 clinicians
- North Star MRI of Frisco LPFrisco, TX · 75 clinicians
- North Star Diagnostic Imaging LLCPlano, TX · 69 clinicians
- North Star MRI LPFrisco, TX · 57 clinicians
- North Star Fp LPDallas, TX · 55 clinicians
- North Star Fm LPLagrangeville, NY · 42 clinicians
- North Star Npt LPPlano, TX · 37 clinicians
- North Star Cn LPOklahoma City, OK · 17 clinicians
Hospital affiliations
- Community Hospital, LLCOklahoma City, OK
- Duncan Regional Hospital, IncDuncan, OK
- Memorial HealthLawton, OK
- Oklahoma Spine HospitalOklahoma City, OK
- Paris Regional Medical CenterParis, TX
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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