Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Joelle Marie Zarzana, O.D.
Optometrist in Napa, CA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1386794170
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Joelle Marie Zarzana
Credential O.D.
Sex Female
Practice address 895 Trancas St, Napa, CA, 94558
Phone (707) 252-2020
Fax (707) 252-0329
Enumeration date Jan 12, 2007
Last updated in NPPES Nov 21, 2011
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 012379 | 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 Joelle Zarzana?
Joelle Zarzana 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 → Eye Care Center of Napa Valley A Medical Corporation Ophthalmology Physician · Napa, CA NPI 1790781409 Patrick Casey Optometrist · Napa, CA NPI 1518963222 Michelle Kerr Optometrist · Napa, CA NPI 1881774164 Paul Row Ophthalmology Physician · Napa, CA NPI 1548345580 Allan Ringard Dentist · Napa, CA NPI 1821148412 Napa Valley Ear, Nose and Throat, Inc. Otolaryngology Physician · Napa, CA NPI 1033324926 David Kim Ophthalmology Physician · Napa, CA NPI 1558568634 Allan Ringard, DDS, Inc Dental Clinic/Center · Napa, CA NPI 1891923066
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-11-21.