NPPES file of Aug 9, 2026

John L. Ritter, M.D.

Neuroradiology Physician · Jbsa Ft Sam Houston, TX

John L. Ritter, M.D. is a neuroradiology physician with a practice address in Jbsa Ft Sam Houston, Texas, and NPI 1013187772, issued on Mar 8, 2008. Check the license (Texas L8173, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1013187772
Name
John L. Ritter
Credential
M.D.
Primary taxonomy
Neuroradiology Physician 2085N0700X
License numbers
L8173 TX
ME 87213 FL
Self-reported in NPPES; status is on the state search
Practice location
3551 Roger Brooke Dr, Jbsa Ft Sam Houston, TX 78234
Phone
(210) 916-4218
Enumerated
Mar 8, 2008
Record last updated
Dec 18, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicaid ID
212085901 TX
Medicare enrollment
Enrolled (PECOS I20160310000666); accepts Medicare assignment
Medical or professional school
University Of Florida College Of Medicine, 1998
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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8 nearest neuroradiology physician records → All 96 in Texas → Look up another NPI →

Also registered at 3551 Roger Brooke Dr

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

  1. Lisa Abbott, APRN-FNPFamily Nurse Practitioner1114293784
  2. Bret Ackermann, DOEmergency Medicine Physician1316010747
  3. Jason AdamsOtology & Neurotology Physician1487155578
  4. Esteban Aguirre, DNP, APRN, AGACNP-BCNurse Practitioner1255883799
  5. Omojolaade Akintade, MD, MSCRMilitary Health Care Provider1659047785
  6. Jordyn Albert, MDMilitary Health Care Provider1003757394

Verify John L. Ritter in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license L8173    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 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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Bills Medicare through one group practice

  1. Shannon ClinicSan Angelo, TX

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

John L. Ritter among 96 neuroradiology physician records in Texas

John L. Ritter, M.D. is one of 96 neuroradiology physician records with a practice address in Texas. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 52% of them.

  • NPI issued2008 · 52% of these records are older, 40% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated1998 · median 2003 among the 66 with a school on file
  • Record last updated2020 · 46% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085N0700X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neuroradiology Physician providers in Texas

There are 96 neuroradiology physician records in Texas.

All 96 in Texas → Every provider in Jbsa Ft Sam Houston → Neuroradiology Physician nationwide →

The 8 neuroradiology physician records with the nearest ZIP codes

  1. Sunthosh Madireddi, M.D.Jbsa Ft Sam Houston, TX 782341396169694
  2. Vijay Aggarwal, MDSan Antonio, TX 782291861943599
  3. Wilson Altmeyer, MDSan Antonio, TX 782291760672919
  4. Zachary Fulton, M.D.San Antonio, TX 782291407268964
  5. Alessandro GregoratSan Antonio, TX 782291508123241
  6. Diego Iravedra-Garcia, MDSan Antonio, TX 782291255856472
  7. Ashwani Kapila, M.D.San Antonio, TX 782291689650491
  8. Veena Nagar, MDSan Antonio, TX 782291275785024

Common questions

What is John L. Ritter, M.D.'s NPI number?

John L. Ritter, M.D.'s National Provider Identifier (NPI) is 1013187772, issued on Mar 8, 2008. An NPI identifies a provider in billing; it is not a license.

Where is John L. Ritter, M.D. located?

The NPPES record lists a practice address at 3551 Roger Brooke Dr, Jbsa Ft Sam Houston, TX, 78234. Phone: (210) 916-4218. Providers update this record themselves, so call before visiting.

How can I verify John L. Ritter, M.D.'s license?

NPPES lists Texas license number L8173, as entered by the provider. 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.

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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.