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Dermatology

Joseph T. Chao, MD

Works at hospitals in San Francisco, CA · California

Summary

Joseph T. Chao, MD (Dermatology) is listed by Medicare at 2 hospitals in San Francisco, CA. NPI 1861805210. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Joseph T. Chao, 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
YesOffers telehealth
11Years since medical school (graduated 2015)
University Of Arizona College Of MedicineMedical school
MaleGender (as listed)
Sutter Bay Medical FoundationGroup practice

Quick answers

Which hospitals does Joseph T. Chao work at?
Medicare's official clinician data lists Joseph T. Chao at 2 hospitals: California Pacific Medical Center - Mission Bernal… and California Pacific Medical Center-Davies Campus Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Joseph T. Chao see patients?
Medicare's clinician data lists 1 practice location in Berkeley, CA. Call before your visit to confirm the address.
What is Joseph T. Chao's specialty?
Medicare lists Dermatology as the primary specialty.
Does Joseph T. Chao accept Medicare assignment?
Yes. Medicare's clinician data says Joseph T. Chao 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.
Does Joseph T. Chao offer telehealth?
Medicare's clinician data says Joseph T. Chao offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Joseph T. Chao?
(510) 204-8150, as listed in official Medicare / NPI Registry data.
What is Joseph T. Chao's NPI number?
1861805210. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Joseph T. Chao works

Medicare's Facility Affiliation Data lists Joseph T. Chao at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Joseph T. Chao is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Joseph T. Chao as a member of this group (CMS data updated 2026-10-02).

  • Sutter Bay Medical Foundation3,829 clinicians in the group

Specialties

Find other Dermatology doctors in California →

Other dermatologists in California

Clinicians with the same Medicare primary specialty in California — not a recommendation.

All dermatologists in California →

Clinician information

CredentialMD
Medical schoolUniversity Of Arizona College Of Medicine
Graduation year2015
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1861805210
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. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians