Clarence Brett Steels, M.D.
Internal Medicine Physician · San Antonio, TX
Clarence Brett Steels, M.D. is an internal medicine physician with a practice address in San Antonio, Texas, and NPI 1871858985, issued on Jul 5, 2012. Check the license (Texas S8497, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Clarence Brett Steels
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- S8497 TX
MD-17738 HI
036136117 IL
Self-reported in NPPES; status is on the state search - Practice location
- 520 Madison Oak Dr, San Antonio, TX 78258
- Phone
- (210) 297-4000
- Enumerated
- Jul 5, 2012
- Record last updated
- Dec 4, 2023
- Medicare enrollment
- Enrolled (PECOS I20220128002112); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →
Also registered at 520 Madison Oak Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Clarence Brett Steels in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license S8497Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average internal medicine physician in 2024
153 Medicare Part D claims for 73 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Usacs Integrated Acute Care Services OF Texas, PLLCCedar Park, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Clarence Brett Steels among 9,175 internal medicine physician records in Texas
Clarence Brett Steels, M.D. is one of 9,175 internal medicine physician records with a practice address in Texas. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 63% of them.
- NPI issued2012 · 63% of these records are older, 34% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2011 · median 2004 among the 6,088 with a school on file
- Record last updated2023 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
657 internal medicine physician records list a practice address in San Antonio
They are 657 of the 37,749 NPPES records with a practice address in San Antonio, and 9,175 internal medicine physician records in Texas.
All 9,175 in Texas → Every provider in San Antonio → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- William Atlas, M.D.San Antonio, TX 782581902881535
- Vernon Benson, M.D.San Antonio, TX 782581487638011
- David Bird, M.D.San Antonio, TX 782581346468246
- John Dickson, M.D.San Antonio, TX 782581154467116
- George Ford III, M.D.F.A.C.P.San Antonio, TX 782581841275443
- Timothy Hernandez, MDSan Antonio, TX 782581851495584
- Kevin Horton, M.D.San Antonio, TX 782581710962972
- Yolanda Marcos, MDSan Antonio, TX 782581104845445
Common questions
What is Clarence Brett Steels, M.D.'s NPI number?
Clarence Brett Steels, M.D.'s National Provider Identifier (NPI) is 1871858985, issued on Jul 5, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Clarence Brett Steels, M.D. located?
The NPPES record lists a practice address at 520 Madison Oak Dr, San Antonio, TX, 78258. Phone: (210) 297-4000. Providers update this record themselves, so call before visiting.
How can I verify Clarence Brett Steels, M.D.'s license?
NPPES lists Texas license number S8497, 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.
How much does Clarence Brett Steels, M.D. prescribe under Medicare Part D?
In 2024, Clarence Brett Steels, M.D. had 153 Medicare Part D claims for 73 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
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.