Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Calvinia Leah Hall-Walker, NP

Psychiatric/Mental Health Nurse Practitioner in Brunswick, OH · enumerated 2021.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1154085140

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Registry record

Entity type Individual (Type 1)

Name Mrs. Calvinia Leah Hall-Walker

Credential NP

Sex Female

Practice address 1149 Stearns St, Brunswick, OH, 44212

Phone (216) 801-8830

Enumeration date Oct 26, 2021

Last updated in NPPES Jun 24, 2024

Taxonomy & licenses

163WC0200X Critical Care Medicine Registered Nurse Nursing Service Providers · License RN.429165 (OH) Secondary

363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License APRN.CNP.0036731 (OH) Primary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP credential

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 → Validate an NPI →

Frequently asked questions

What specialty is Calvinia Hall-Walker?

Calvinia Hall-Walker is registered in NPPES with the primary taxonomy of Psychiatric/Mental Health Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-06-24.