JOHN W MERRELL (P.A.) – Surgical Physician Assistant, NPI 1912961897
Surgical Physician Assistant
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
8,497 PHYSICIAN ASSISTANT in TX
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Provider Addresses for JOHN W MERRELL (P.A.)
Band Box Place, Dallas, Dallas County, Texas, 75244, United States
DALLAS, TX 752844658
Phone:
Type: Mailing
302, University Boulevard, Round Rock, Williamson County, Texas, 78665, United States
ROUND ROCK, TX 786651032
Phone: (512) 509-0200
Fax: (512) 218-6330
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 3 Open Payments records for all available years, with a total value of $155.
Total Amount is formed as General ($155) + Research ($0) + Ownership ($0) = $155.
Last reported payment date: 2024-09-12 • Largest payer in this snapshot: Actelion Pharmaceuticals US, Inc. ($104).
Total Amount
$155
General + Research + Ownership
Payments
3
Total payment records
General Amount
$155
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-09-12
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Actelion Pharmaceuticals US, Inc. | $104 |
| ABIOMED | $34 |
| Edwards Lifesciences Corporation | $17 |
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: 2019-12-10
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 3 Medicare enrollment records; no due dates published yet.
Enrollment records
3
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 |
|---|---|---|---|---|
| I20140403001228 | I | Physician Assistant | TN | TBD |
| I20190107001107 | I | Physician Assistant | WI | TBD |
| I20191210001337 | I | Physician Assistant | 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.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 75284)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | WI | |
| O B S T E T R I C S/ G Y N E C O L O G Y | WI | |
| Nurse Practitioner | IL | |
| Nurse Practitioner | WI | |
| - | NC | |
| - | WI | |
| N E U R O L O G Y | IL | |
| - | PA | |
| - | WI | |
| Physician Assistant | WI |
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