Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mario A Ruiz, MD
Nephrology Physician in Denton, TX · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1841281177
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Registry record
Entity type Individual (Type 1)
Name Mario A Ruiz
Credential MD
Sex Male
Practice address 3315 Colorado Blvd, Suite 102, Denton, TX, 76210
Phone (940) 320-1708
Fax (940) 565-5457
Enumeration date Nov 4, 2005
Last updated in NPPES Dec 17, 2015
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 390008040 | Other | - | RR MEDICARE |
| 132484008 | Medicaid | TX | - |
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 Mario Ruiz practice?
The practice location on file with NPPES is in Denton, TX. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Mario Ruiz?
The National Provider Identifier (NPI) for Mario Ruiz is 1841281177, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-12-17.