Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Isaac Guillermo Pro, RN, MSN, PMHNP

Psychiatric/Mental Health Nurse Practitioner in Santa Fe Springs, CA · enumerated 2023.

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

National Provider Identifier

1962183350

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Registry record

Entity type Individual (Type 1)

Name Isaac Guillermo Pro

Credential RN, MSN, PMHNP

Sex Male

Practice address 12215 Telegraph Rd, Santa Fe Springs, CA, 90670

Phone (925) 282-1778

Fax (415) 296-5299

Enumeration date Jul 27, 2023

Last updated in NPPES Oct 18, 2024

Taxonomy & licenses

363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 95026002 (CA) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Isaac Pro?

Isaac Pro 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-10-18.