GREGORY W DINWIDDIE (PAC) – Physician Assistant, NPI 1578567848
Physician Assistant
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,797 PHYSICIAN ASSISTANT in OK
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Provider Addresses for GREGORY W DINWIDDIE (PAC)
Northwest 56th Street, Oklahoma City, Oklahoma County, Oklahoma, 73112, United States
STE 760
OKLAHOMA CITY, OK 731124455
Phone: (405) 951-4345
Type: Mailing
INTEGRIS Baptist Medical Center, 3300, Northwest Expressway, Oklahoma City, Oklahoma County, Oklahoma, 73112, United States
OKLAHOMA CITY, OK 731124418
Phone: (405) 949-3349
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 71 Open Payments records for all available years, with a total value of $2,504.
Total Amount is formed as General ($2,504) + Research ($0) + Ownership ($0) = $2,504.
Last reported payment date: 2024-12-17 • Largest payer in this snapshot: Medtronic, Inc. ($1,328).
Total Amount
$2,504
General + Research + Ownership
Payments
71
Total payment records
General Amount
$2,504
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-17
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Medtronic, Inc. | $1,328 |
| ATRICURE, INC. | $669 |
| ABIOMED | $208 |
| Inari Medical, Inc. | $185 |
| Edwards Lifesciences Corporation | $26 |
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: 2023-07-28
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
Earliest due date
Not assigned (TBD)
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 |
|---|---|---|---|---|
| I20090616000805 | I | Physician Assistant | OK | TBD |
| I20230728000708 | I | Physician Assistant | ND | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
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 |
|---|---|---|---|---|
| 36556 | Insertion of non-tunneled central venous tube for infusion (5 years or older) | 86 | 63 | $0 |
| 33508 | Harvest of vein using an endoscope | 36 | 36 | $0 |
| 33533 | Coronary artery bypass using artery graft, 1 graft | 35 | 35 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 18 | 18 | $0 |
| 33518 | Coronary artery bypass using vein or artery graft, 2 grafts | 13 | 13 | $0 |
Insurance plans in this area (ZIP 73112)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| PHYSICIAN ASSISTANT | OK | 33405 | Replacement of left lower heart chamber valve using artificial valve on heart-lung machine | 13 | 13 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Pulmonary Disease | TN | |
| Cardiac Electrophysiology, Cardiovascular Disease (Cardiology) | OK | |
| Nurse Practitioner | OK | |
| Physician Assistant | OK | |
| - | OK | |
| Interventional Cardiology, Cardiovascular Disease (Cardiology), Internal Medicine | OK | |
| Nurse Practitioner | OK | |
| Vascular Surgery | OK | |
| Physician Assistant | OK | |
| - | OK |
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