NPPES file of Aug 9, 2026

Peter Maag Williams, M.D.

Diagnostic Radiology Physician · Jbsa Lackland, TX

Peter Maag Williams, M.D. is a diagnostic radiology physician with a practice address in Jbsa Lackland, Texas, and NPI 1093827214, issued on Sep 1, 2006. Check the license on the Texas Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1093827214
Name
Peter Maag Williams
Credential
M.D.
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License numbers
MD448897 PA
036172839 IL
Self-reported in NPPES; status is on the state search
Practice location
1100 Wilford Hall Loop, Bldg 4554, Jbsa Lackland, TX 78236
Phone
(210) 292-5256
Enumerated
Sep 1, 2006
Record last updated
Feb 26, 2026
Medicare enrollment
Enrolled (PECOS I20260126000079); accepts Medicare assignment
Medical or professional school
Uniformed Services Uhs Fe Hebert School Of Med, 2004
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 1100 Wilford Hall Loop, Bldg 4554

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

  1. Beth Baykan, NURSE PRACTITIONERWomen's Health Nurse Practitioner1326030917
  2. Erika Best, LCSWClinical Social Worker1578660007
  3. Molly Boyer, M.D.Internal Medicine Physician1649448705
  4. Kimberly Bradley, D.O.Aerospace Medicine Physician1841275153
  5. Matthew Brock, M.D.Neurology Physician1831350438
  6. Samanda Bryant Hagan, PHD, LCSW, MDIVClinical Social Worker1285058024

Verify Peter Maag Williams in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical BoardCheck 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 Texas 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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The practice group's MIPS final score for 2023 (Medicare payment program): 78.8 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score75.0
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through 9 group practices

  1. Empire State Radiology P CPort Jervis, NY
  2. Good Samaritan Regional Health CenterMount Vernon, IL
  3. Imaging Associates OF Indiana, PCAlamo Heights, TX
  4. Multicare Health SystemGig Harbor, WA
  5. Northside Radiology Associates LLCAlamo Heights, TX
  6. Premier Radiology Wisconsin LLCMount Pleasant, WI
  7. Specialists IN Medical Imaging, SCAlamo Heights, TX
  8. St Marys Hospital Centralia IllinoisCentralia, IL
  9. West Florida Radiology Associates PASan Antonio, TX

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

Peter Maag Williams among 3,124 diagnostic radiology physician records in Texas

Peter Maag Williams, M.D. is one of 3,124 diagnostic radiology physician records with a practice address in Texas. 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 15% of them.

  • NPI issued2006 · 15% of these records are older, 49% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 73% of these records are
  • Graduated2004 · median 2003 among the 2,277 with a school on file
  • Record last updated2026 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

17 diagnostic radiology physician records list a practice address in Jbsa Lackland

They are 17 of the 719 NPPES records with a practice address in Jbsa Lackland, and 3,124 diagnostic radiology physician records in Texas.

The 8 diagnostic radiology physician records with the nearest ZIP codes

  1. George Buse, MDJbsa Lackland, TX 782361992792899
  2. Douglas Byerly, M.D., PH.DJbsa Lackland, TX 782361720202468
  3. Brian Callahan, M.D.Lackland A F B, TX 782361013059625
  4. Nathan Cecava, MDLackland A F B, TX 782361235194168
  5. Michael Clegg, MDLackland Air Force Base, TX 782361518189174
  6. Daniel Duffy, MDLackland A F B, TX 782361780657429
  7. Keiron Kennedy, M.D.Jbsa Lackland, TX 782361740221944
  8. Joel Rautiola, MDLackland A F B, TX 782361093783755

Common questions

What is Peter Maag Williams, M.D.'s NPI number?

Peter Maag Williams, M.D.'s National Provider Identifier (NPI) is 1093827214, issued on Sep 1, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Peter Maag Williams, M.D. located?

The NPPES record lists a practice address at 1100 Wilford Hall Loop, Bldg 4554, Jbsa Lackland, TX, 78236. Phone: (210) 292-5256. Providers update this record themselves, so call before visiting.

How can I verify Peter Maag Williams, M.D.'s license?

Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

What is Peter Maag Williams, M.D.'s MIPS final score?

The 2023 MIPS final score is 78.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.