WILLIAM STEPHEN MCMAHON (M.D.) – Pediatric Cardiology Physician, NPI 1073558458
Pediatric Cardiology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
359 PEDIATRIC MEDICINE in AL
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Provider Addresses for WILLIAM STEPHEN MCMAHON (M.D.)
Cadbury, Bournville, Stirchley, Birmingham, West Midlands, England, B30 2LU, United Kingdom
BIRMINGHAM, AL 352555823
Phone: (205) 934-3460
Type: Mailing
Women & Infants Center, 1700, 6th Avenue South, Automotive Historic District, Five Points South, Birmingham, Jefferson County, Alabama, 35233, United States
SUITE 9100
BIRMINGHAM, AL 352331802
Phone: (205) 934-3460
Fax: (205) 975-6291
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 29 Open Payments records for all available years, with a total value of $6,807.
Total Amount is formed as General ($6,807) + Research ($0) + Ownership ($0) = $6,807.
Last reported payment date: 2024-12-16 • Largest payer in this snapshot: Edwards Lifesciences Corporation ($4,770).
Total Amount
$6,807
General + Research + Ownership
Payments
29
Total payment records
General Amount
$6,807
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-16
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Edwards Lifesciences Corporation | $4,770 |
| Medtronic, Inc. | $1,353 |
| W. L. Gore & Associates, Inc. | $297 |
| B. Braun Interventional Systems Inc. | $185 |
| Biosense Webster, Inc. | $82 |
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: 2009-05-14
PECOS data refreshed: 2026-06-15
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 |
|---|---|---|---|---|
| I20090514000466 | I | Pediatric Medicine | AL | 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 35255)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| N E P H R O L O G Y | TX | |
| - | AL | |
| A N E S T H E S I O L O G Y | AL | |
| E N D O C R I N O L O G Y | VA | |
| Nurse Practitioner | AL | |
| - | AL | |
| Hospitalist, Internal Medicine | AL | |
| Clinical Psychologist | AL | |
| Nurse Practitioner | AL | |
| - | AL |
Reviews
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