John Freeman Gray, MD
NPI 1932633575ActiveIndividual· Anesthesiology· Houston, TX
Anesthesiology (MD) with Ut Physicians, practicing in Houston, Texas. Medicare paid $18,878 for services to 84 patients in 2024. Masimo Corporation was the largest of 2 companies reporting payments in 2025, $105.90 in all, mostly food and beverage. Lists Memorial Hermann - Texas Medical Center as a hospital affiliation.
Overview
| NPI | 1932633575 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 19, 2017 |
| Last updated in NPPES | Mar 8, 2021 |
| Certified by provider | Mar 8, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Anesthesiology Primary | 207L00000X | S9305 | TX |
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 - Anesthesiology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 84 |
|---|---|
| Services billed | 145 across 32 procedure codes |
| Paid by Medicare | $18,878 |
Education and affiliations
| Graduation year | 2017 |
|---|---|
| Medicare specialty | Anesthesiology |
Medical group
- Ut PhysiciansHouston, TX · 1,765 clinicians
Hospital affiliation
- Memorial Hermann - Texas Medical CenterHouston, TX
Industry payments (Open Payments)
- 2025$105.90 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Masimo Corporation | $65.01 | 1 |
| Octapharma USA, Inc. | $40.89 | 1 |
What the 2025 payments were for
- Food and Beverage$105.90 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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