Dr. Leonel Guardiola, DDS

Dr. Leonel Guardiola is a General Practice Dentistry provider (Dentist) practicing in Rockwall, TX, registered in the NPPES registry with NPI 1356754899 since 2014. The credential DDS stands for Doctor of Dental Surgery. Practices at Daniel Douglas Dentistry Pllc (listed at the same practice address in NPPES).

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI	1356754899
Entity type	Individual (Type 1)
Name	Dr. Leonel Guardiola
Credential	DDS
Sex	Male
Practice address	Rockwall, TX, 75032
Phone	9727719559
Enumeration date	2014-06-03
Last updated in NPPES	2017-06-01

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
1223G0001X	General Practice Dentistry	Primary	30004	TX

DDS — Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

Copy-ready billing details

Provider: Leonel Guardiola, DDS
NPI: 1356754899
Taxonomy: 1223G0001X (General Practice Dentistry)
Address: Rockwall, TX, 75032

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1659378859	Ronald Stewart	Individual	General Practice Dentistry	Rockwall, TX
1174273213	Daniel Douglas	Individual	Dentist	Rockwall, TX
1487489217	Daniel Douglas Dentistry Pllc	Organization	Dental Clinic/Center	Rockwall, TX

Verify this record

Cross-check NPI 1356754899 against the authoritative CMS record: view Dr. Leonel Guardiola 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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Leonel Guardiola?

Leonel Guardiola is registered in NPPES with the primary taxonomy of General Practice Dentistry. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2017-06-01.