NPPES file of Aug 9, 2026

Alex Sieczkowski, DC

Chiropractor · New Braunfels, TX

Alex Sieczkowski, DC is a chiropractor with a practice address in New Braunfels, Texas, and NPI 1134630940, issued on Oct 19, 2017. Check the license (Texas 13507, as entered in NPPES) with the Texas board that licenses this profession; 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
1134630940
Name
Alex Sieczkowski
Credential
DC
Primary taxonomy
Chiropractor 111N00000X
License number
13507 TX
Self-reported in NPPES; status is on the state search
Practice location
280 N Business IH 35 Ste 300, New Braunfels, TX 78130
Phone
(210) 549-8097
Enumerated
Oct 19, 2017
Record last updated
Nov 12, 2025
Medicare enrollment
Enrolled (PECOS I20171107000369); accepts Medicare assignment
Medical or professional school
Logan College Of Chiropractic, 2017
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 280 N Business IH 35 Ste 300

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

  1. Haley Rankin, DCChiropractor1871190629

Verify Alex Sieczkowski in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Texas board licenses this profession
    Search for license 13507
    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
Find 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. Valeo Chiropractic PLLCNew Braunfels, TX

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

Alex Sieczkowski among 6,979 chiropractor records in Texas

Alex Sieczkowski, DC is one of 6,979 chiropractor records with a practice address in Texas. 12% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 67% of them.

  • NPI issued2017 · 67% of these records are older, 30% newer
  • In a Medicare fileYes · 12% of these records are
  • In the CMS Doctors and Clinicians fileYes · 27% of these records are
  • Graduated2017 · median 2007 among the 1,907 with a school on file
  • Record last updated2025 · 66% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 111N00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

43 chiropractor records list a practice address in New Braunfels

They are 43 of the 1,853 NPPES records with a practice address in New Braunfels, and 6,979 chiropractor records in Texas.

The 8 chiropractor records with the nearest ZIP codes

  1. Barret Baumann, D.C.New Braunfels, TX 781301336267731
  2. Juan Bazan, D.C.New Braunfels, TX 781301154612984
  3. Judith Borger, D.C.New Braunfels, TX 781301558491233
  4. Tiffany Curley, DCNew Braunfels, TX 781301427220300
  5. Jennifer Holley, D.C.New Braunfels, TX 781301407916687
  6. Mark LohmeierNew Braunfels, TX 781301982812921
  7. Matthew Lohmeier, D.C.New Braunfels, TX 781301053522946
  8. Mitchell Mayo, CHIROPRACTORNew Braunfels, TX 781301336372275

Common questions

What is Alex Sieczkowski, DC's NPI number?

Alex Sieczkowski, DC's National Provider Identifier (NPI) is 1134630940, issued on Oct 19, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Alex Sieczkowski, DC located?

The NPPES record lists a practice address at 280 N Business IH 35 Ste 300, New Braunfels, TX, 78130. Phone: (210) 549-8097. Providers update this record themselves, so call before visiting.

How can I verify Alex Sieczkowski, DC's license?

NPPES lists Texas license number 13507, as entered by the provider. Search the Texas board that licenses this profession; the NPPES record confirms identity 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.