Chelsea Grenfell
Social Worker · Upland, CA
Chelsea Grenfell is a social worker with a practice address in Upland, California, and NPI 1154849602, issued on Sep 5, 2017. Check the license (California 92355, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Chelsea Grenfell
- Primary taxonomy
- Social Worker 104100000X
- License number
- 92355 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1425 W Foothill Blvd Ste 201, Upland, CA 91786
- Phone
- (877) 527-7227
- Enumerated
- Sep 5, 2017
- Record last updated
- Jan 17, 2025
- Medicare enrollment
- Enrolled (PECOS I20260324003627); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest social worker records → All 10,332 in California → Look up another NPI →
Also registered at 1425 W Foothill Blvd Ste 201
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Brittany Altuna, SOCIAL WORKERSocial Worker1891533279
- Mayra BerumenAdult Companion1962298406
- Tangianikka BookerMarriage & Family Therapist1871336107
- Brittany DelgadoMarriage & Family Therapist1508316464
- Amanda Ghaffari VafaMarriage & Family Therapist1134609902
Verify Chelsea Grenfell in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 92355Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Chelsea Grenfell among 10,332 social worker records in California
Chelsea Grenfell is one of 10,332 social worker records with a practice address in California. 2% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2017, is newer than 42% of them.
- NPI issued2017 · 42% of these records are older, 53% newer
- In a Medicare fileNo · 2% of these records are
- In the CMS Doctors and Clinicians fileYes · 3% of these records are
- Graduated2018 · median 2015 among the 299 with a school on file
- Record last updated2025 · 41% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 104100000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
25 social worker records list a practice address in Upland
They are 25 of the 1,846 NPPES records with a practice address in Upland, and 10,332 social worker records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 10,332 in California → Every provider in Upland → Social Worker nationwide →
The 8 social worker records with the nearest ZIP codes
- Felicia AlexanderUpland, CA 917861972814523
- Monica ArredondoUpland, CA 917861720595655
- Cynthia Cecil, LSWUpland, CA 917861790832004
- Nancy Duron, ASCWUpland, CA 917861992494405
- Ricky Garcia, CATC III, ACSWUpland, CA 917861316320872
- Jose Herrera Nila, SWIIUpland, CA 917861710021753
- Annette HuertaUpland, CA 917861073275210
- June JonesUpland, CA 917861922492511
Common questions
What is Chelsea Grenfell's NPI number?
Chelsea Grenfell's National Provider Identifier (NPI) is 1154849602, issued on Sep 5, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Chelsea Grenfell located?
The NPPES record lists a practice address at 1425 W Foothill Blvd Ste 201, Upland, CA, 91786. Phone: (877) 527-7227. Providers update this record themselves, so call before visiting.
How can I verify Chelsea Grenfell's license?
NPPES lists California license number 92355, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.