Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Sandra Lopez Miller, FNP-C
Nurse Practitioner in Seguin, TX · enumerated 2023.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1346022597
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Registry record
Entity type Individual (Type 1)
Name Sandra Lopez Miller
Credential FNP-C
Sex Female
Practice address 3415 Old Spanish Trl, Seguin, TX, 78155
Phone (830) 491-7907
Enumeration date Oct 20, 2023
Last updated in NPPES Oct 21, 2023
Taxonomy & licenses
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 1140066 (TX) Primary
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.
Frequently asked questions
Where does Sandra Miller practice?
The practice location on file with NPPES is in Seguin, TX. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Sandra Miller?
The National Provider Identifier (NPI) for Sandra Miller is 1346022597, a Type 1 (individual) record in the CMS NPPES registry.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-10-21.