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

Medical Oncology

Helen K. Chew, MD

Works at hospitals in Sacramento, CA · California

Summary

Helen K. Chew, MD (Medical Oncology) is listed by Medicare at 1 hospital in Sacramento, CA. NPI 1801870142. 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 Helen K. Chew, 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

Medical OncologyPrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
35Years since medical school (graduated 1991)
University Of Texas Medical School At San AntonioMedical school
FemaleGender (as listed)
Regents of the Univ of CaGroup practice

Quick answers

Which hospitals does Helen K. Chew work at?
Medicare's official clinician data lists Helen K. Chew at 1 hospital: University of California Davis Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Helen K. Chew see patients?
Medicare's clinician data lists 1 practice location in Merced, CA. Call before your visit to confirm the address.
What is Helen K. Chew's specialty?
Medicare lists Medical Oncology as the primary specialty.
Does Helen K. Chew accept Medicare assignment?
Yes. Medicare's clinician data says Helen K. Chew 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 Helen K. Chew offer telehealth?
Medicare's clinician data says Helen K. Chew offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Helen K. Chew?
(209) 384-6528, as listed in official Medicare / NPI Registry data.
What is Helen K. Chew's NPI number?
1801870142. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Helen K. Chew works

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

Group practices

Medicare enrollment lists Helen K. Chew as a member of this group (CMS data updated 2026-10-02).

  • Regents of the Univ of Ca1,584 clinicians in the group

Specialties

Find other Medical Oncology doctors in California →

Other oncologists in Merced

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

All oncologists in Merced →

Clinician information

CredentialMD
Medical schoolUniversity Of Texas Medical School At San Antonio
Graduation year1991
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1801870142
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