Red River Nephrology Associates PA
Red River Nephrology Associates PA is a healthcare organization registered as Specialist in Sherman, TX, holding Type 2 (organization) NPI 1689621237 since 2006. The authorized official on file is David Reynolds, President/Provider.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1689621237 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | Red River Nephrology Associates PA |
| Practice address | 321 N HIGHLAND AVE, SUITE 105, Sherman, TX, 75092 |
| Phone | 9038937170 |
| Fax | 9038934372 |
| Enumeration date | 2006-05-28 |
| Last updated in NPPES | 2007-08-15 |
Authorized official
| Name | David Reynolds |
|---|---|
| Title | President/Provider |
| Phone | 9038937170 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 207RN0300X | Nephrology Physician | Secondary | H6541 | TX |
| 174400000X | Specialist | Primary | H6541 | TX |
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 00K55R | Other | TX | BCBS OF TEXAS |
| 1736996 | Medicaid | LA | — |
| 4333749 | Other | — | AETNA |
Copy-ready billing details
Provider: Red River Nephrology Associates PA NPI: 1689621237 Taxonomy: 174400000X (Specialist) Address: 321 N HIGHLAND AVE, SUITE 105, Sherman, TX, 75092
Providers at this address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1679571004 | Easwar Sundaram | Individual | Neurology Physician | Sherman, TX |
| 1396743720 | Bharathy Sundaram | Individual | Neurology Physician | Sherman, TX |
| 1023016458 | Mohamad Al-Rifai | Individual | Neurology with Special Qualifications in Child Neurology Physician | Sherman, TX |
| 1841298270 | Jose Matus | Individual | Neurology Physician | Sherman, TX |
| 1669470092 | Texoma Neurology Associates, PA | Organization | Neurology Physician | Sherman, TX |
| 1083612303 | Jerome Lopez | Individual | Neurology Physician | Sherman, TX |
| 1205838208 | Shannon Cain | Individual | Surgical Physician Assistant | Sherman, TX |
| 1164419594 | Bonnie Smithers | Individual | Family Nurse Practitioner | Sherman, TX |
Verify this record
Cross-check NPI 1689621237 against the authoritative CMS record: view Red River Nephrology Associates PA 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 2007-08-15.