Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Dermatology

Julia S. Arzeno, MD

Sees patients in Saratoga, CA · San Jose, CA · California

Summary

Julia S. Arzeno, MD (Dermatology) is enrolled with Medicare at 2 practice locations in Saratoga, CA and San Jose, CA. NPI 1578094785. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Julia S. Arzeno, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

DermatologyPrimary specialty
YesAccepts Medicare assignment
9Years since medical school (graduated 2017)
University Of California, Geffen School Of MedicineMedical school
FemaleGender (as listed)
Csi Medical GroupGroup practice

Quick answers

Where does Julia S. Arzeno see patients?
Medicare's clinician data lists 2 practice locations, including Saratoga, CA and San Jose, CA. Call before your visit to confirm the address.
What is Julia S. Arzeno's specialty?
Medicare lists Dermatology as the primary specialty.
Does Julia S. Arzeno accept Medicare assignment?
Yes. Medicare's clinician data says Julia S. Arzeno accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Julia S. Arzeno?
(408) 253-4407, as listed in official Medicare / NPI Registry data.
What is Julia S. Arzeno's NPI number?
1578094785. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Julia S. Arzeno is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Julia S. Arzeno as a member of this group (CMS data updated 2026-10-02).

  • Csi Medical Group111 clinicians in the group

Specialties

Find other Dermatology doctors in California →

Other dermatologists in Saratoga

Clinicians with the same Medicare primary specialty in Saratoga, CA — not a recommendation.

All dermatologists in Saratoga →

Clinician information

CredentialMD
Medical schoolUniversity Of California, Geffen School Of Medicine
Graduation year2017
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1578094785
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians