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

Cherrelyn Estell, NP

Research Clinic/Center in Pasadena, CA · enumerated 2015.

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

National Provider Identifier

1568850253

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Cherrelyn Estell

Credential NP

Sex Female

Practice address Pasadena, CA, 91101

Phone (626) 517-7000

Fax (800) 456-7698

Enumeration date Jan 2, 2015

Last updated in NPPES Nov 5, 2026

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

Taxonomy & licenses

364SH1100X Holistic Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers · License 1568850253 (CA) Secondary

261QR1100X Research Clinic/Center Ambulatory Health Care Facilities Primary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 95005778 (CA) Secondary

175F00000X Naturopath Other Service Providers Secondary

163WC0400X Case Management Registered Nurse Nursing Service Providers · License 95048955 (CA) Secondary

163WG0000X General Practice Registered Nurse Nursing Service Providers · License 95048955 (CA) Secondary

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License 66328 (CA) Secondary

363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 95005778 (CA) Secondary

364SX0106X Occupational Health Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers · License 1568850253 (CA) Secondary

363LP2300X Primary Care Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 95005778 (CA) Secondary

101YP1600X Pastoral Counselor Behavioral Health & Social Service Providers Secondary

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

Is NPI 1568850253 active?

Yes, as of the latest NPPES snapshot, NPI 1568850253 is active (record last updated 2026-11-05).

How do I verify Cherrelyn Estell's NPI record?

Cross-check NPI 1568850253 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-11-05.