DR. JAMES MCCALL GRIMSON (M.D.) – Diagnostic Radiology Physician, NPI 1801876677
Diagnostic Radiology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,529 DIAGNOSTIC RADIOLOGY in VA
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Provider Addresses for DR. JAMES MCCALL GRIMSON (M.D.)
Riverside Regional Medical Center, 500, J Clyde Morris Boulevard, Deer Park, Newport News, Newport News City, Virginia, 23601, United States
RIVERSIDE REGIONAL MEDICAL CENTER
NEWPORT NEWS, VA 236011929
Phone: (757) 594-4405
Fax: (757) 867-6587
Type: Location
P O BOX 12087
NEWPORT NEWS, VA 236122087
Phone: (757) 867-6102
Fax: (757) 867-6587
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $17.
Total Amount is formed as General ($17) + Research ($0) + Ownership ($0) = $17.
Last reported payment date: 2024-08-22 • Largest payer in this snapshot: Siemens Medical Solutions USA, Inc. ($17).
Total Amount
$17
General + Research + Ownership
Payments
1
Total payment records
General Amount
$17
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-08-22
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Siemens Medical Solutions USA, Inc. | $17 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2008-05-02
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Past revalidation due date
Earliest CMS due date was 2023-07-31 (1042 days ago).
Enrollment records
1
Earliest due date
2023-07-31
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20080502000175 | I | Diagnostic Radiology | VA | 2023-07-31 |
What to do next
- Verify current status on the CMS Revalidation Lookup Tool immediately.
- Complete revalidation in PECOS or contact your Medicare Administrative Contractor (MAC).
- Overdue revalidation can lead to deactivation of Medicare billing privileges.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 71045 | X-ray of chest, 1 view | 1,237 | 1,072 | $0 |
| 74177 | Ct scan of abdomen and pelvis with contrast | 436 | 424 | $0 |
| 77067 | Screening mammography | 391 | 391 | $0 |
| 70450 | Ct scan head or brain without contrast | 345 | 335 | $0 |
| 77063 | Screening 3d breast mammography | 324 | 324 | $0 |
Insurance plans in this area (ZIP 23601)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| DIAGNOSTIC RADIOLOGY | VA | 71250 | CT scan chest | 92 | 91 |
| DIAGNOSTIC RADIOLOGY | VA | 73110 | X-ray of wrist, minimum of 3 views | 50 | 47 |
| DIAGNOSTIC RADIOLOGY | VA | 73562 | X-ray of knee, 3 views | 77 | 67 |
| DIAGNOSTIC RADIOLOGY | VA | 73630 | X-ray of foot, minimum of 3 views | 73 | 64 |
| DIAGNOSTIC RADIOLOGY | VA | 74177 | CT scan of abdomen and pelvis with contrast | 61 | 57 |
| DIAGNOSTIC RADIOLOGY | VA | 78452 | Nuclear medicine study of vessels of heart using drugs or exercise multiple studies | 84 | 83 |
| DIAGNOSTIC RADIOLOGY | VA | 78815 | Nuclear medicine study with CT imaging skull base to mid-thigh | 34 | 33 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Diagnostic Radiology, Interventional Radiology | VA | |
| Diagnostic Radiology | VA | |
| Diagnostic Radiology | VA | |
| Diagnostic Radiology | VA | |
| Physician Assistant | VA | |
| Diagnostic Radiology | NC | |
| Diagnostic Radiology | VA | |
| Diagnostic Radiology | MN | |
| Diagnostic Radiology | NJ | |
| Diagnostic Radiology | MI |
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