Dr. Allen Grisson, M.D.
What this data tells you about Dr. Grisson
Dr. Allen Grisson is a radiation oncology specialist in Nacogdoches, TX, with 19 years of NPI registration. Based on federal Medicare data, Dr. Grisson performed 2,691 Medicare services across 2,346 unique beneficiaries.
Between the years covered by Open Payments, Dr. Grisson received a total of $109 from 3 pharmaceutical and/or device companies across 4 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in radiation oncology. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Grisson is Very High — reflecting how much public federal data is available about this provider. This is not a quality rating. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
Medicare Practice Summary
Medicare Utilization ↗Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Chest X-ray, 1 view | 657 | $6 | $33 |
| 3D screening mammography (tomosynthesis) | 235 | $28 | $60 |
| Screening mammography | 233 | $35 | $112 |
| Chest X-ray, 2 views | 142 | $7 | $39 |
| CT scan of head/brain, without contrast | 140 | $29 | $161 |
| CT scan of chest, without contrast | 100 | $38 | $175 |
| Ct scan of abdomen and pelvis without contrast | 98 | $59 | $204 |
| CT scan of abdomen and pelvis with contrast | 79 | $62 | $235 |
| Ct scan of chest with contrast | 56 | $40 | $203 |
| Limited ultrasound scan behind abdominal cavity | 54 | $19 | $92 |
| Ct scan of upper spine without contrast | 49 | $35 | $216 |
| Bone density scan (DEXA) | 48 | $9 | $78 |
| Hip X-ray, 2-3 views | 41 | $8 | $38 |
| Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) | 37 | $20 | $60 |
| Ct scan of heart with evaluation of blood vessel calcium | 35 | $20 | $98 |
| Ultrasound study of one arm or leg veins with compression and maneuvers | 35 | $15 | $105 |
| Ct scan of blood vessels of chest with contrast | 34 | $63 | $344 |
| Shoulder X-ray, 2+ views | 34 | $6 | $55 |
| Ultrasound study of arm or leg veins with compression and maneuvers | 32 | $25 | $169 |
| Mri scan of brain without contrast | 31 | $51 | $277 |
| Limited ultrasound scan of abdomen | 30 | $21 | $115 |
| Low dose ct scan of chest for lung cancer screening | 29 | $50 | $148 |
| X-ray of lower and sacral spine, 2-3 views | 26 | $8 | $50 |
| Ct scan of lower spine without contrast | 25 | $34 | $295 |
| Mri scan of lower spinal canal without contrast | 25 | $52 | $306 |
| X-ray of knee, 1-2 views | 24 | $6 | $43 |
| X-ray of abdomen, 1 view | 24 | $7 | $33 |
| Diagnostic mammography of 1 breast | 24 | $26 | $112 |
| Ct scan of blood vessels of neck with contrast | 21 | $62 | $304 |
| Knee X-ray, 3 views | 21 | $7 | $50 |
| Complete ultrasound scan of abdomen | 21 | $30 | $153 |
| Foot X-ray, 3+ views | 20 | $6 | $46 |
| Mri scan of upper spinal canal without contrast | 19 | $54 | $295 |
| Ct scan of face without contrast | 18 | $31 | $181 |
| Ultrasound of both sides of head and neck blood flow | 18 | $29 | $186 |
| Ct scan of blood vessels of head with contrast | 17 | $61 | $290 |
| Ultrasound scan of head and neck soft tissue | 17 | $19 | $124 |
| Diagnostic mammography of both breasts | 16 | $29 | $136 |
| Imaging for evaluation of swallowing function | 15 | $20 | $97 |
| X-ray of upper spine, 2-3 views | 14 | $8 | $56 |
| X-ray of hand, minimum of 3 views | 14 | $6 | $40 |
| Limited ultrasound scan of 1 breast | 14 | $23 | $118 |
| X-ray of pelvis, 1-2 views | 12 | $6 | $51 |
| X-ray of wrist, minimum of 3 views | 12 | $5 | $40 |
| Ct scan of abdomen and pelvis before and after contrast | 12 | $55 | $265 |
| X-ray of middle spine, 2 views | 11 | $8 | $54 |
| Ct scan of pelvis without contrast | 11 | $40 | $181 |
| Ultrasound of leg arteries or artery grafts | 11 | $29 | $176 |
Industry Payment Transparency
Open Payments through 2024 ↗Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
Payments by company (2024)
Associated products mentioned in payments ›
Most payments (100%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not public | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This measures how much public data is available about a provider — not how good they are. How we calculate this →
Summary
Dr. Grisson is a mixed practice specialist, with moderate Medicare volume, with low-engagement industry engagement, with 19 years of NPI registration.
This summary is auto-generated from federal data. It describes data availability and patterns — not clinical quality. Read our methodology →
Frequently Asked Questions
Is Dr. Grisson experienced with chest x-ray, 1 view?
Does Dr. Grisson receive payments from pharmaceutical companies?
How do Dr. Grisson's costs compare to other radiation oncologists in Nacogdoches?
What does Data Coverage mean?
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Explore related providers
All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. The Transparency Score measures data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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