Dr. Daniel C Armstrong, D.C.
Dr. Daniel C Armstrong is a Chiropractor provider (Chiropractor) practicing in San Antonio, TX, registered in the NPPES registry with NPI 1558455121 since 2006. The credential DC stands for Doctor of Chiropractic.
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1558455121 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Daniel C Armstrong |
| Credential | D.C. |
| Sex | Male |
| Practice address | San Antonio, TX, 78258 |
| Phone | 2104939119 |
| Fax | 2104937923 |
| Enumeration date | 2006-10-03 |
| Last updated in NPPES | 2007-07-08 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 111N00000X | Chiropractor | Primary | DC 4829 | TX |
DC — Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential
Copy-ready billing details
Provider: Daniel Armstrong, D.C. NPI: 1558455121 Taxonomy: 111N00000X (Chiropractor) Address: San Antonio, TX, 78258
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1609854934 | Stephen Roberts | Individual | General Practice Physician | San Antonio, TX |
| 1992734016 | Sonterra Endoscopy Center Ltd | Organization | Ambulatory Surgical Clinic/Center | San Antonio, TX |
| 1295875052 | Stone Oak Family Doctors PA | Organization | Family Medicine Physician | San Antonio, TX |
| 1467595405 | Benito Carrera Leal | Individual | Obstetrics & Gynecology Physician | San Antonio, TX |
| 1679767875 | Center for Minmally Invasive Cardiovascular & Thoracic Surgery PA | Organization | Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician | San Antonio, TX |
| 1598942419 | Dennis Deiasi | Individual | Medical Physician Assistant | San Antonio, TX |
| 1982871513 | Mehren Sondergaard | Individual | Speech-Language Pathologist | San Antonio, TX |
| 1417103219 | Gabriel A. Magraner, M.D., P.A. | Organization | Gastroenterology Physician | San Antonio, TX |
Verify this record
Cross-check NPI 1558455121 against the authoritative CMS record: view Dr. Daniel C Armstrong on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.