NPPES file of Aug 9, 2026

William Stephen McMahon, M.D.

Pediatric Cardiology Physician · Birmingham, AL

William Stephen McMahon, M.D. is a pediatric cardiology physician with a practice address in Birmingham, Alabama, and NPI 1073558458, issued on Jun 18, 2006. Check the license (Alabama 14871, as entered in NPPES) on the Alabama Board of Medical Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1073558458
Name
William Stephen McMahon
Credential
M.D.
Primary taxonomy
Pediatric Cardiology Physician 2080P0202X
License number
14871 AL
Self-reported in NPPES; status is on the state search
Practice location
1700 6TH Ave S, Birmingham, AL 35233
Phone
(205) 934-3460
Enumerated
Jun 18, 2006
Record last updated
Feb 4, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(205) 975-6291
Medicare enrollment
Enrolled (PECOS I20090514000466); accepts Medicare assignment
Medical or professional school
University Of North Carolina At Chapel Hill School Of Medicine, 1988
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1700 6TH Ave S

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Nitin Arora, MD, MPHNeonatal-Perinatal Medicine Physician1821355975
  2. Brooklyn ArringtonRegistered Nurse1427751296
  3. Beth Baker, NNP-BCNeonatal-Perinatal Medicine Physician1821858549
  4. Chelsey Balch, RNRegistered Nurse1275178667
  5. Emilee Benefield, RNRegistered Nurse1497391890
  6. Anslee BerryRegistered Nurse1477324770

Verify William Stephen McMahon in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersAlabama Board of Medical Examiners
    Search for license 14871
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Alabama license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Industry payments in 2024: $5,100.56

9 payments; by number, the most common kind was food and beverage; the largest payer was Edwards Lifesciences Corporation. The 1,156 providers of this specialty with any payment received $2,864.57 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. William McMahon$5,100.56
  2. Specialty average$2,864.57

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. University OF Alabama Health Services Foundation, PCBirmingham, AL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

William Stephen McMahon among 30 pediatric cardiology physician records in Alabama

William Stephen McMahon, M.D. is one of 30 pediatric cardiology physician records with a practice address in Alabama. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 0% of them.

  • NPI issued2006 · 0% of these records are older, 63% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated1988 · median 2007 among the 17 with a school on file
  • Record last updated2021 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0202X and a Alabama practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatric Cardiology Physician providers in Alabama

There are 30 pediatric cardiology physician records in Alabama.

The 8 pediatric cardiology physician records with the nearest ZIP codes

  1. Ahmed Asfari, MDBirmingham, AL 352331720361744
  2. Waldemar Carlo, M.D.Birmingham, AL 352331548583883
  3. Matthew Coghill, MDBirmingham, AL 352331639523681
  4. Jacqueline Collins, M.D.Birmingham, AL 352331821433574
  5. Edward Colvin, M.D.Birmingham, AL 352331043248339
  6. Camden Hebson, MDBirmingham, AL 352331457536765
  7. Walter Johnson, M.D.Birmingham, AL 352331902833916
  8. Austin Kane, MDBirmingham, AL 352331114217452

Common questions

What is William Stephen McMahon, M.D.'s NPI number?

William Stephen McMahon, M.D.'s National Provider Identifier (NPI) is 1073558458, issued on Jun 18, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William Stephen McMahon, M.D. located?

The NPPES record lists a practice address at 1700 6TH Ave S, Birmingham, AL, 35233. Phone: (205) 934-3460. Providers update this record themselves, so call before visiting.

How can I verify William Stephen McMahon, M.D.'s license?

NPPES lists Alabama license number 14871, as entered by the provider. Search the Alabama Board of Medical Examiners at https://www.albme.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.