ALLEN C. JR. WILLIAMSON (D.O.) – Family Medicine Physician, NPI 1548269566
Family Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
8,705 FAMILY PRACTICE in TX
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Provider Addresses for ALLEN C. JR. WILLIAMSON (D.O.)
Jimmy Johnson Boulevard, Port Arthur, Jefferson County, Texas, 77627, United States
#501
PORT ARTHUR, TX 776402000
Phone: (409) 729-2555
Fax: (409) 729-2542
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 86 Open Payments records for all available years, with a total value of $1,491.
Total Amount is formed as General ($1,491) + Research ($0) + Ownership ($0) = $1,491.
Last reported payment date: 2024-10-08 • Largest payer in this snapshot: ABBVIE INC. ($536).
Total Amount
$1,491
General + Research + Ownership
Payments
86
Total payment records
General Amount
$1,491
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-10-08
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ABBVIE INC. | $536 |
| Bayer Healthcare Pharmaceuticals Inc. | $292 |
| Novo Nordisk Inc | $148 |
| PFIZER INC. | $63 |
| Lilly USA, LLC | $47 |
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: 2010-11-23
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 |
|---|---|---|---|---|
| I20101123000784 | I | Family Practice | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 366 | 193 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 166 | 106 | $0 |
| J1100 | Injection, dexamethasone sodium phosphate, 1 mg | 123 | 12 | $0 |
| 96372 | Injection of drug or substance under skin or into muscle | 32 | 17 | $0 |
Insurance plans in this area (ZIP 77640)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| FAMILY MEDICINE | TX | 20610 | Aspiration and/or injection of large joint or joint capsule | 19 | 11 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Family Practice | TX | |
| Family Practice | TX |
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