Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Geoffrey Walker, MD
Nephrology Physician in Irving, TX · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1306890058
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Registry record
Entity type Individual (Type 1)
Name Geoffrey Walker
Credential MD
Sex Male
Practice address 2005 W Park Dr Ste 200, Irving, TX, 75061
Phone (214) 358-2300
Fax (214) 579-6984
Enumeration date May 19, 2006
Last updated in NPPES May 6, 2021
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 |
|---|---|---|---|
| 1911275 | Medicaid | LA | - |
| 8864J1 | Other | TX | BCBS |
| 115885901 | Medicaid | TX | - |
| 2323067 | Other | TX | BCBS BLUELINK |
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
How do I verify Geoffrey Walker's NPI record?
Cross-check NPI 1306890058 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1306890058 active?
Yes, as of the latest NPPES snapshot, NPI 1306890058 is active (record last updated 2021-05-06).
Other providers at this practice address
Browse all → Sandra Lauriat Nephrology Physician · Irving, TX NPI 1134107634 Alexander Liang Nephrology Physician · Irving, TX NPI 1720059850 Maria Perez Nephrology Physician · Irving, TX NPI 1184681074 Jayasree Grandhi Nephrology Physician · Irving, TX NPI 1912933177 Michael Nurenberg Nephrology Physician · Irving, TX NPI 1427275239 Arshad Asghar Nephrology Physician · Irving, TX NPI 1255541488 Asha Chemmalakuzhy Nephrology Physician · Irving, TX NPI 1467651521 Ranil Gajanayaka Nephrology Physician · Irving, TX NPI 1841452380
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-05-06.