WILLIAM DOUGLAS KNOPF (MD) – Cardiovascular Disease Physician, NPI 1922007541
Cardiovascular Disease Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
980 CARDIOVASCULAR DISEASE (CARDIOLOGY) in GA
Provider Addresses for WILLIAM DOUGLAS KNOPF (MD)
PO BOX 26790
MACON, GA 312216790
Phone: (478) 254-2644
Fax: (478) 254-4924
Type: Mailing
1921 Alice St Ste 4A
Waycross, GA 315016202
Phone: (912) 284-2460
Fax: (912) 284-2389
Type: Location
3841 GREEN HILLS VILLAGE DR STE 200
NASHVILLE, TN 372152691
Phone:
Type: Mailing
6070 LAKESIDE COMMONS DR
MACON, GA 312105778
Phone: (478) 254-2644
Fax: (478) 254-4924
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
Open Payments (CMS)
CMS reports 33 Open Payments records for all available years, with a total value of $689.
Total Amount is formed as General ($689) + Research ($0) + Ownership ($0) = $689.
Last reported payment date: 2024-12-10 • Largest payer in this snapshot: ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) ($176).
Total Amount
$689
General + Research + Ownership
Payments
33
Total payment records
General Amount
$689
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-10
Latest reported date
Top Companies
Largest payers in this snapshot
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: 2020-11-25
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 |
|---|---|---|---|---|
| I20050125000099 | I | Cardiovascular Disease (Cardiology) | GA | TBD |
| I20201125000850 | I | Interventional Cardiology | FL | 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 |
|---|---|---|---|---|
| 99458 | Management using the results of remote vital sign monitoring per calendar month, each additional 20 minutes | 3,416 | 297 | $0 |
| 99457 | Management using the results of remote vital sign monitoring per calendar month, first 20 minutes | 2,866 | 344 | $0 |
| 99454 | Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days | 2,264 | 297 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 2,162 | 1,079 | $0 |
| 93000 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 1,422 | 895 | $0 |
Insurance plans in this area (ZIP 31221)
Loading plans...
Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| CARDIOVASCULAR DISEASE (CARDIOLOGY) | GA | 92928 | Catheter insertion of stents in major coronary artery or branch, accessed through the skin | 83 | 59 |
| CARDIOVASCULAR DISEASE (CARDIOLOGY) | GA | 93458 | Insertion of catheter in left heart for imaging of blood vessels or grafts and left lower heart | 92 | 87 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | GA | |
| Diagnostic Radiology | MA | |
| - | GA | |
| Pulmonary Disease, Critical Care (Intensivists), Internal Medicine | GA | |
| - | GA | |
| P S Y C H I A T R Y | TX | |
| - | GA | |
| Vascular Surgery, Thoracic Surgery | NC | |
| Physician Assistant | GA | |
| Vascular Surgery | NC |
Reviews
All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.
No reviews yet. Be the first to share your experience — your opinion helps families compare providers.