MR. WILLIAM N JR. BARKER (ACNP) – Acute Care Nurse Practitioner, NPI 1457501025
Acute Care Nurse Practitioner
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
22,204 NURSE PRACTITIONER in TX
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Provider Addresses for MR. WILLIAM N JR. BARKER (ACNP)
PO BOX 4207
LONGVIEW, TX 756064207
Phone: (903) 315-4119
Fax: (903) 315-4130
Type: Mailing
703, East Marshall Avenue, Longview, Gregg County, Texas, 75601, United States
SUITE 5008
LONGVIEW, TX 756015500
Phone: (903) 315-4880
Fax: (903) 315-2833
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 25 Open Payments records for all available years, with a total value of $591.
Total Amount is formed as General ($591) + Research ($0) + Ownership ($0) = $591.
Last reported payment date: 2024-11-21 • Largest payer in this snapshot: ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) ($360).
Total Amount
$591
General + Research + Ownership
Payments
25
Total payment records
General Amount
$591
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-21
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: 2009-07-09
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 |
|---|---|---|---|---|
| I20090709000120 | I | Nurse Practitioner | 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 | 438 | 272 | $0 |
| 93010 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 42 | 41 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 28 | 28 | $0 |
Insurance plans in this area (ZIP 75606)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| General Surgery | AZ | |
| Physician Assistant | TX | |
| Internal Medicine | TX | |
| Nurse Practitioner | TX | |
| Nurse Practitioner | TX | |
| - | TX | |
| Hematology/Oncology, Internal Medicine | TX | |
| E N D O C R I N O L O G Y | TX | |
| Nurse Practitioner | IL | |
| - | NC |
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