Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Jonathan K Loo
Optometrist in Stockton, CA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1285652776
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Registry record
Entity type Individual (Type 1)
Name Jonathan K Loo
Sex Male
Practice address 3133 W March Ln, Ste 2020, Stockton, CA, 95219
Phone (209) 951-0820
Fax (209) 951-2348
Enumeration date Jul 17, 2006
Last updated in NPPES May 20, 2016
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| SD0059010 | 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
What specialty is Jonathan Loo?
Jonathan Loo is registered in NPPES with the primary taxonomy of Optometrist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
Other providers at this practice address
Browse all → Lester Low Dentist · Stockton, CA NPI 1841293669 Yolanda Scheer Optometrist · Stockton, CA NPI 1376515130 Delta Pathology Associates Medical Group Inc Clinical Medical Laboratory · Stockton, CA NPI 1306814918 Richard Vanover Optometrist · Stockton, CA NPI 1528022035 Judith Prima Optometrist · Stockton, CA NPI 1861456238 John Fujii Optometrist · Stockton, CA NPI 1104883149 Kurt Skinner Optometrist · Stockton, CA NPI 1386601292 Linda Hsu Optometrist · Stockton, CA NPI 1124086269
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-05-20.