Daniel Patrick Loisel, DO
Daniel Patrick Loisel is a Emergency Medicine Physician provider (Emergency Medicine) practicing in San Marcos, TX, registered in the NPPES registry with NPI 1245220540 since 2005. The credential DO stands for Doctor of Osteopathic Medicine.
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1245220540 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Daniel Patrick Loisel |
| Credential | DO |
| Sex | Male |
| Practice address | San Marcos, TX, 78666 |
| Phone | 5127533796 |
| Enumeration date | 2005-10-27 |
| Last updated in NPPES | 2008-03-26 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 207P00000X | Emergency Medicine Physician | Primary | G5308 | TX |
DO — Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 132725605 | Medicaid | TX | — |
Copy-ready billing details
Provider: Daniel Loisel, DO NPI: 1245220540 Taxonomy: 207P00000X (Emergency Medicine Physician) Address: San Marcos, TX, 78666
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1992704803 | Gregory Iglesia | Individual | Diagnostic Radiology Physician | San Marcos, TX |
| 1750371027 | Hill Country Emergency Physicians PA | Organization | Emergency Medicine Physician | San Marcos, TX |
| 1720078090 | Curtis Grote | Individual | Emergency Medicine Physician | San Marcos, TX |
| 1659361954 | Randolph Seybold | Individual | Emergency Medicine Physician | San Marcos, TX |
| 1457341752 | John Whisenant | Individual | Emergency Medicine Physician | San Marcos, TX |
| 1104817220 | Jose Pena | Individual | Emergency Medicine Physician | San Marcos, TX |
| 1487645404 | Kellie Reardon | Individual | Nurse Practitioner | San Marcos, TX |
| 1831174937 | Charles Porter | Individual | Anesthesiology Physician | San Marcos, TX |
Verify this record
Cross-check NPI 1245220540 against the authoritative CMS record: view Daniel Patrick Loisel 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
What is the NPI number for Daniel Loisel?
Where does Daniel Loisel practice?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2008-03-26.