Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mrs. Esther Y Lo, N.P.
Nurse Practitioner in Colton, CA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1053340562
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Registry record
Entity type Individual (Type 1)
Name Mrs. Esther Y Lo
Credential N.P.
Sex Female
Practice address 1181 N Mount Vernon Ave, Colton, CA, 92324
Phone (909) 498-2356
Fax (877) 824-9080
Enumeration date Jun 30, 2006
Last updated in NPPES Apr 23, 2015
Taxonomy & licenses
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 10381 (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
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| EFF.10/21/13-COLTON | Medicaid | CA | - |
| EFF 2/20/13 RIALTO | Medicaid | CA | - |
| EFF. 5/17/13-SAN BER | Medicaid | CA | - |
| P01282960/DU4034 | Other | CA | RAILROAD MEDICARE |
| EFF.4/23/13-MORENOVA | Medicaid | CA | - |
| EFF.4/23/13-N.RIVERS | Medicaid | CA | - |
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.
Frequently asked questions
How do I verify Esther Lo's NPI record?
Cross-check NPI 1053340562 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1053340562 active?
Yes, as of the latest NPPES snapshot, NPI 1053340562 is active (record last updated 2015-04-23).
Other providers at this practice address
Browse all → Mariam Moghadam Family Medicine Physician · Colton, CA NPI 1396758942 Joseph M Molina MD Professional Corporation - Southern California Family Medicine Physician · Colton, CA NPI 1780937334 Joseph M Molina MD Professional Corporation Southern California Non-Pharmacy Dispensing Site · Colton, CA NPI 1538546015 Southern California Emergency Medicine Urgent Care Clinic/Center · Colton, CA NPI 1053878405 Luke Layton Physician Assistant · Colton, CA NPI 1497471320
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-04-23.