Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Katherine M Walker, APRN
Nurse Practitioner in Tulsa, OK · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1932170099
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Registry record
Entity type Individual (Type 1)
Name Katherine M Walker
Credential APRN
Sex Female
Practice address 6151 S Yale Ave, Suite A-100, Tulsa, OK, 74136
Phone (918) 494-8500
Enumeration date Jan 27, 2006
Last updated in NPPES Sep 11, 2013
Taxonomy & licenses
364S00000X Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers · License R0068559 (OK) Secondary
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 68559 (OK) Primary
APRN · Advanced Practice Registered Nurse: An umbrella credential covering NPs, CRNAs, CNMs, and clinical nurse specialists.
About the APRN credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| P00642515 | Other | OK | MEDICARE RAILROAD |
| P00308500 | Other | OK | MEDICARE RAILROAD |
| OK400759 | Other | OK | MEDICARE PTAN |
| 200070410A | Medicaid | OK | - |
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 Katherine Walker practice?
The practice location on file with NPPES is in Tulsa, OK. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Katherine Walker?
The National Provider Identifier (NPI) for Katherine Walker is 1932170099, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-09-11.