DR. WILLIAM R WITHAM (M.D.) – Surgery Physician, NPI 1447201157
Surgery Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
2,644 GENERAL SURGERY in TX
Provider Addresses for DR. WILLIAM R WITHAM (M.D.)
910 E Houston St Ste 270
Tyler, TX 757028367
Phone: (903) 606-4300
Type: Location
1325, Pennsylvania Avenue, Fort Worth, Tarrant County, Texas, 76104, United States
SUITE 200
FORT WORTH, TX 761042158
Phone: (817) 332-9957
Fax: (817) 336-3130
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 2 Open Payments records for all available years, with a total value of $90.
Total Amount is formed as General ($90) + Research ($0) + Ownership ($0) = $90.
Last reported payment date: 2024-09-10 • Largest payer in this snapshot: GE HEALTHCARE ($72).
Total Amount
$90
General + Research + Ownership
Payments
2
Total payment records
General Amount
$90
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-09-10
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| GE HEALTHCARE | $72 |
| Pacira Pharmaceuticals Incorporated | $18 |
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: 2005-07-05
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
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 |
|---|---|---|---|---|
| I20050705000794 | I | General Surgery | TX | 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 |
|---|---|---|---|---|
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 79 | 79 | $0 |
| 45385 | Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 41 | 41 | $0 |
| 99203 | New patient office or other outpatient visit, 30-44 minutes | 37 | 37 | $0 |
| 99212 | Established patient office or other outpatient visit, 10-19 minutes | 29 | 27 | $0 |
| G0105 | Colorectal cancer screening; colonoscopy on individual at high risk | 25 | 25 | $0 |
Insurance plans in this area (ZIP 75702)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Physician Assistant | TX | |
| Internal Medicine | TX | |
| - | TX | |
| Nurse Practitioner | TX | |
| General Surgery, Colorectal Surgery (Proctology) | TX | |
| O P H T H A L M O L O G Y | TX | |
| Nurse Practitioner | TX | |
| - | TX | |
| - | TX | |
| Orthopedic Surgery | TX |
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