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Endocrinology

Chengyu Xu, MD

Works at hospitals in San Francisco, CA · California

Summary

Chengyu Xu, MD (Endocrinology) is listed by Medicare at 1 hospital in San Francisco, CA. NPI 1669600086. 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 Chengyu Xu, 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

EndocrinologyPrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
30Years since medical school (graduated 1996)
MaleGender (as listed)
Permanente Medical Group IncGroup practice (+1 more)

Quick answers

Which hospitals does Chengyu Xu work at?
Medicare's official clinician data lists Chengyu Xu at 1 hospital: Chinese Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Chengyu Xu see patients?
Medicare's clinician data lists 5 practice locations, including San Francisco, CA, Oakland, CA and Daly City, CA. Call before your visit to confirm the address.
What is Chengyu Xu's specialty?
Medicare lists Endocrinology as the primary specialty, and also Internal Medicine.
Does Chengyu Xu accept Medicare assignment?
Yes. Medicare's clinician data says Chengyu Xu 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 Chengyu Xu offer telehealth?
Medicare's clinician data says Chengyu Xu offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Chengyu Xu?
(415) 677-2388, as listed in official Medicare / NPI Registry data.
What is Chengyu Xu's NPI number?
1669600086. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Chengyu Xu works

Medicare's Facility Affiliation Data lists Chengyu Xu 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 Chengyu Xu is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Chengyu Xu as a member of these groups (CMS data updated 2026-10-02).

  • Permanente Medical Group Inc10,996 clinicians in the group
  • Chinese Hospital Association39 clinicians in the group

Specialties

Find other Endocrinology doctors in California →

Other endocrinologists in San Francisco

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

All endocrinologists in San Francisco →

Clinician information

CredentialMD
Graduation year1996
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1669600086
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