WILLIAM C JR. PORTER (MD) – Orthopaedic Surgery Physician, NPI 1528099413
Orthopaedic Surgery Physician
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Profile Insights
NPPES metrics only — not quality of care.
284 ORTHOPEDIC SURGERY in MS
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Provider Addresses for WILLIAM C JR. PORTER (MD)
East Highway Street, Brady Township, Kalamazoo County, Michigan, 49097, United States
VICKSBURG, MS 391838211
Phone: (601) 885-5000
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 4 Open Payments records for all available years, with a total value of $2,082.
Total Amount is formed as General ($82) + Research ($2,000) + Ownership ($0) = $2,082.
Last reported payment date: 2024-06-13 • Largest payer in this snapshot: Zimmer Biomet Holdings, Inc. ($2,032).
Total Amount
$2,082
General + Research + Ownership
Payments
4
Total payment records
General Amount
$82
General payments
Research Amount
$2,000
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-06-13
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Zimmer Biomet Holdings, Inc. | $2,032 |
| Bioventus LLC | $27 |
| KCI USA, Inc. | $23 |
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: 2024-08-14
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 |
|---|---|---|---|---|
| I20090106000188 | I | Orthopedic Surgery | MS | TBD |
| I20240814004791 | I | Orthopedic Surgery | LA | 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 |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 210 | 136 | $0 |
| 73562 | X-ray of knee, 3 views | 140 | 91 | $0 |
| 99203 | New patient office or other outpatient visit, 30-44 minutes | 122 | 122 | $0 |
| J3301 | Injection, triamcinolone acetonide, not otherwise specified, 10 mg | 120 | 21 | $0 |
| 99212 | Established patient office or other outpatient visit, 10-19 minutes | 99 | 73 | $0 |
Insurance plans in this area (ZIP 39183)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine | MS | |
| O T O L A R Y N G O L O G Y | MS | |
| - | MS | |
| O B S T E T R I C S/ G Y N E C O L O G Y | MS | |
| - | MS | |
| - | MS | |
| - | TX | |
| Physician Assistant | MS | |
| General Surgery | MS | |
| - | MS |
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