DR. WILLIAM O'MALLEY (MD) – Emergency Medicine Physician, NPI 1275528002
Emergency Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
Loading map...
Provider Addresses for DR. WILLIAM O'MALLEY (MD)
University Boulevard, Rice Village, University Place, Houston, Harris County, Texas, 77005, United States
HOUSTON, TX 770052711
Phone: (713) 664-5890
Type: Mailing
Cypress Fairbanks Medical Center, 10655, Steepletop Drive, Houston, Harris County, Texas, 77065, United States
CYPRESS FAIRBANKS ER
HOUSTON, TX 770654222
Phone: (281) 897-3150
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
Open Payments (CMS)
CMS reports 4 Open Payments records for all available years, with a total value of $321.
Total Amount is formed as General ($321) + Research ($0) + Ownership ($0) = $321.
Last reported payment date: 2024-12-05 • Largest payer in this snapshot: Inari Medical, Inc. ($150).
Total Amount
$321
General + Research + Ownership
Payments
4
Total payment records
General Amount
$321
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-05
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Inari Medical, Inc. | $150 |
| Ceribell, Inc. | $141 |
| BrainScope Company, Inc. | $30 |
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: 2006-01-11
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 |
|---|---|---|---|---|
| I20060111001135 | I | Emergency 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.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99284 | Emergency department visit with moderate level of medical decision making | 18 | 18 | $0 |
Insurance plans in this area (ZIP 77005)
Loading plans...
Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| EMERGENCY MEDICINE | TX | 93010 | Routine electrocardiogram (EKG) using at least 12 leads with interpretation and report | 24 | 23 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Physician Assistant | TX | |
| Emergency Medicine, Internal Medicine | TX | |
| Emergency Medicine | TX | |
| Nurse Practitioner | FL | |
| Emergency Medicine | DC | |
| Family Practice | TX | |
| Nurse Practitioner | TX | |
| Nurse Practitioner | TX | |
| Nurse Practitioner | TX | |
| Physician Assistant | CO |
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.