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

Mary Khristeen J Isidro, NP

Adult Health Nurse Practitioner in Signal Hill, CA · enumerated 2024 · practices at Ab Safe Haven Palliative & Hospice Care, Inc..

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

National Provider Identifier

1528822525

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Mary Khristeen J Isidro

Credential NP

Sex Female

Practice address Signal Hill, CA, 90755

Phone (562) 426-7500

Fax (562) 424-9588

Enumeration date Feb 9, 2024

Last updated in NPPES Mar 31, 2026

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

Taxonomy & licenses

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 95029020 (CA) 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

Where does Mary Khristeen Isidro practice?

The practice location on file with NPPES is in Signal Hill, CA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Mary Khristeen Isidro?

The National Provider Identifier (NPI) for Mary Khristeen Isidro is 1528822525, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Farideh Bahrami Nurse Practitioner · Signal Hill, CA NPI 1083675821 Ab Safe Haven Palliative & Hospice Care, Inc. Community Based Hospice Care Agency · Signal Hill, CA NPI 1669764726 Gladys Casillas Nurse Practitioner · Signal Hill, CA NPI 1750632519 Marien Zavala Nurse Practitioner · Signal Hill, CA NPI 1780163188 Lynn Keitz Family Nurse Practitioner · Signal Hill, CA NPI 1699231621 Maria Cabrales Family Nurse Practitioner · Signal Hill, CA NPI 1497440119

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-31.