Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Joelle Marie Zarzana, OD

Individual provider Optometrist · NPI 1386794170

Joelle Marie Zarzana, OD is registered under Optometry in Napa, California. Qualified in 2004, 22 years ago. Practices with Eye Associates of Northern California Medical Group Inc, a 2-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
22
Licensed in
CA
In the registry since
2007
What do these letters mean?
OD — Doctor of Optometry
An optometrist: examines eyes, prescribes glasses and contacts, and treats many eye conditions.

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Practice location Address checks out

895 Trancas St
Napa, CA 94558-3040 Not confirmed with CMS for 14 years — call before visiting
Phone: (707) 252-2020
Fax: (707) 252-0329
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 12679T (CA)

Record details

NPI number1386794170
Entity typeIndividual (Type 1)
GenderFemale
Credentials OD
Sole proprietorNo
NPI enumeratedJanuary 12, 2007
Last updated in NPPESNovember 21, 2011

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyOPTOMETRY
Medical schoolOTHER
Graduated 2004 (22 years in practice)
Group practice Eye Associates Of Northern California Medical Group Inc — 2 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients226
Services billed 528 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at Eye Associates of Northern California Medical Group Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice.

Other providers in Napa