NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Songhui Martin, RN, PA

Registered Nurse in Prescott Valley, AZ · enumerated 2024 · practices at Granville Assisted Living - Paradise Retreat LLC.

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

National Provider Identifier

1720813587

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Registry record

Entity type Individual (Type 1)
Name Dr. Songhui Martin
Credential RN, PA
Sex Female
Practice address Prescott Valley, AZ, 86314
Phone (626) 464-4379
Enumeration date Sep 3, 2024
Last updated in NPPES Nov 15, 2025

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 729174 (CA) Secondary
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 002239-PA (PR) Secondary
163W00000X Registered Nurse Nursing Service Providers · License 255309 (AZ) Primary
RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN 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.

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Frequently asked questions

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.
What specialty is Songhui Martin?
Songhui Martin is registered in NPPES with the primary taxonomy of Registered Nurse. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-11-15.