MR. WILLIAM JOSEPH MORRISSEY (MD) – Pediatric Emergency Medicine (Pediatrics) Physician, NPI 1053337543
Pediatric Emergency Medicine (Pediatrics) Physician
Main info
Doctor Profile
Contacts
Profile Insights
NPPES metrics only — not quality of care.
Provider Addresses for MR. WILLIAM JOSEPH MORRISSEY (MD)
PO BOX 733784
DALLAS, TX 753733784
Phone: (682) 885-6483
Fax: (682) 885-3113
Type: Mailing
801 7TH AVE
FORT WORTH, TX 761042733
Phone: (682) 885-4095
Type: Location
11550, Legacy Drive, Frisco, Denton County, Texas, 75033, United States
#420
FRISCO, TX 75034
Phone: (912) 222-9799
Type: Location
4984, Stillwater Trail, Starwood, Frisco, Collin County, Texas, 75034, United States
FRISCO, TX 750344064
Phone: (912) 222-9700
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
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: 2010-09-27
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 |
|---|---|---|---|---|
| I20100927000704 | I | Pediatric Medicine | 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 75373)
Loading plans...
Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | TX | |
| Emergency Medicine | TX | |
| Nurse Practitioner | TX | |
| Nurse Practitioner | TX | |
| Emergency Medicine | TX | |
| Nurse Practitioner | TX | |
| Emergency Medicine | IL | |
| - | LA | |
| - | TX | |
| - | PA |
Reviews
All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.
No reviews yet. Be the first to share your experience — your opinion helps families compare providers.