Steven Siemieniak, DO
Emergency Medicine Physician · Jbsa Lackland, TX
Steven Siemieniak, DO is an emergency medicine physician with a practice address in Jbsa Lackland, Texas, and NPI 1659965598, issued on Feb 22, 2021. Check the license on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Steven Siemieniak
- Credential
- DO
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 0102207565 VA
Self-reported in NPPES; status is on the state search - Practice location
- 1100 Wilford Hall Loop # 4554, Jbsa Lackland, TX 78236
- Phone
- (210) 292-7412
- Enumerated
- Feb 22, 2021
- Record last updated
- Jun 26, 2026
- Medicare enrollment
- Enrolled (PECOS I20260119000072); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 4,885 in Texas → Look up another NPI →
Also registered at 1100 Wilford Hall Loop # 4554
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mary EzebuiroFamily Nurse Practitioner1881179588
- Shannel Pegram, DOFamily Medicine Physician1710248653
- Rene Saenz, D.D.S.General Practice Dentistry1972724417
- James Scott, M.D.Family Medicine Physician1386626943
Verify Steven Siemieniak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical BoardCheck 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
- Emergency Medicine Services OF TX, PLLCLive Oak, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Steven Siemieniak among 4,885 emergency medicine physician records in Texas
Steven Siemieniak, DO 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 2021, is newer than 88% of them.
- NPI issued2021 · 88% of these records are older, 8% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2021 · median 2013 among the 2,779 with a school on file
- Record last updated2026 · 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).
21 emergency medicine physician records list a practice address in Jbsa Lackland
They are 21 of the 719 NPPES records with a practice address in Jbsa Lackland, and 4,885 emergency medicine physician records in Texas.
All 4,885 in Texas → Every provider in Jbsa Lackland → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Christianne Clifford, D.O.Lackland A F B, TX 782361124256615
- Joseph Cornett, MDJbsa Lackland, TX 782361841435963
- Peter Cuenca, M.D.Jbsa Lackland, TX 782361194714113
- George Dockendorf, DOLackland A F B, TX 782361265477343
- James Eadie, MDLackland A F B, TX 782361376573063
- Troy Johnson, MDJbsa Lackland, TX 782361992796585
- James King, M.D.Lackland A F B, TX 782361780694257
- Thomas Kolkebeck, M.D.Lackland A F B, TX 782361427136829
Common questions
What is Steven Siemieniak, DO's NPI number?
Steven Siemieniak, DO's National Provider Identifier (NPI) is 1659965598, issued on Feb 22, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Steven Siemieniak, DO located?
The NPPES record lists a practice address at 1100 Wilford Hall Loop # 4554, Jbsa Lackland, TX, 78236. Phone: (210) 292-7412. Providers update this record themselves, so call before visiting.
How can I verify Steven Siemieniak, DO'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.
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.