Steven Birch Walton, M.D.
Emergency Medicine Physician · San Antonio, TX
Steven Birch Walton, M.D. is an emergency medicine physician with a practice address in San Antonio, Texas, and NPI 1104263276, issued on May 30, 2013. Check the license (Texas Q9921, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Steven Birch Walton
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- Q9921 TX
Self-reported in NPPES; status is on the state search - Practice location
- 3551 Roger Brooke Dr, San Antonio, TX 78234
- Phone
- (210) 916-0808
- Enumerated
- May 30, 2013
- Record last updated
- Feb 26, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20170217000854); may accept Medicare assignment
- Medical or professional school
- Wake Forest University School Of Medicine, 2013
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 4,885 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.
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- Mabel Aguirre, IDMTIndependent Duty Medical Technicians1083009179
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Verify Steven Birch Walton in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license Q9921Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Legacy Urgent Care PASan Marcos, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Steven Birch Walton among 4,885 emergency medicine physician records in Texas
Steven Birch Walton, M.D. is one of 4,885 emergency medicine physician records with a practice address in Texas. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 59% of them.
- NPI issued2013 · 59% of these records are older, 37% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2013 · median 2013 among the 2,779 with a school on file
- Record last updated2018 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
400 emergency medicine physician records list a practice address in San Antonio
They are 400 of the 37,749 NPPES records with a practice address in San Antonio, and 4,885 emergency medicine physician records in Texas.
All 4,885 in Texas → Every provider in San Antonio → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Eric Chin, M.D.Fort Sam Houston, TX 782341447240411
- Marc Daymude, M.D.Fort Sam Houston, TX 782341821089806
- Gary Dufresne, DOFort Sam Houston, TX 782341689664930
- David Foss, MDSan Antonio, TX 782341669454880
- Guyon Hill, M.D.Fort Sam Houston, TX 782341629059316
- Michael Hilliard, MDFort Sam Houston, TX 782341538140397
- Curtis Hunter, M.D.Fort Sam Houston, TX 782341447241427
- Sean Meadows, M.D.Fort Sam Houston, TX 782341770560039
Common questions
What is Steven Birch Walton, M.D.'s NPI number?
Steven Birch Walton, M.D.'s National Provider Identifier (NPI) is 1104263276, issued on May 30, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Steven Birch Walton, M.D. located?
The NPPES record lists a practice address at 3551 Roger Brooke Dr, San Antonio, TX, 78234. Phone: (210) 916-0808. Providers update this record themselves, so call before visiting.
How can I verify Steven Birch Walton, M.D.'s license?
NPPES lists Texas license number Q9921, 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.
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.