CHELSEA GRENFELL
NPI 1154849602
Social Worker in Upland, CA

Q: What is Chelsea Grenfell's NPI number?

The NPI number for Chelsea Grenfell is 1154849602. It was assigned to this individual provider in the NPPES registry on September 5, 2017.

Q: What is Chelsea Grenfell's specialty?

The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.

Q: When was this NPI record last updated?

The NPPES record for Chelsea Grenfell was last updated on January 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since September 05, 2017PECOS Enrolled

1425 W FOOTHILL BLVD STE 201, UPLAND, CA 91786(877) 527-7227 Get Directions Write a Review

NPPES record last updated: January 17, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Dec 23, 2024, May 25, 2022, Jan 19, 2018 (3 updates tracked since 2018).

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About Chelsea Grenfell NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CHELSEA GRENFELL (NPI 1154849602) is an individual social worker in Upland, California, licensed in California (92355) and active in the NPI registry since September 2017. She is enrolled in Medicare PECOS and is a graduate of Other (2018).

NPPES Registry Identity

NPI1154849602

Entity TypeIndividualFemale

Primary Taxonomy104100000X

Provider Legal NameCHELSEA GRENFELL

Location Address1425 W FOOTHILL BLVD STE 201Upland, CA 91786-3637

Mailing Address25910 Acero Ste 160Mission Viejo, CA 92691-2777 · (877) 527-7227

Phone(877) 527-7227

Sole ProprietorYes

Medical School CMSOtherGraduated 2018

Enumeration DateSeptember 5, 2017

Last NPPES UpdateJanuary 17, 20253 updates tracked since enumeration

NPPES CertifiedJanuary 17, 2025

✔ NPI 1154849602 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers

Taxonomy Code104100000X

License✔ Licensed in CA · 92355

Definition

A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.

1425 W FOOTHILL BLVD STE 201, Upland, CA 91786

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Chelsea Grenfell is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID2466936703

PECOS Enrollment IDI20260324003627

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SOUTH COAST CHILDREN'S SOCIETY, INC.

Community/Behavioral Health