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

Hematology/Oncology

Anthony S. Stein, MD

Sees patients in Duarte, CA · South Pasadena, CA · California

Summary

Anthony S. Stein, MD (Hematology/Oncology) is enrolled with Medicare at 3 practice locations in Duarte, CA and South Pasadena, CA. NPI 1225046147. 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 Anthony S. Stein, 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

Hematology/OncologyPrimary specialty
YesAccepts Medicare assignment
48Years since medical school (graduated 1978)
MaleGender (as listed)
City of Hope Medical FoundationGroup practice

Quick answers

Where does Anthony S. Stein see patients?
Medicare's clinician data lists 3 practice locations, including Duarte, CA and South Pasadena, CA. Call before your visit to confirm the address.
What is Anthony S. Stein's specialty?
Medicare lists Hematology/Oncology as the primary specialty.
Does Anthony S. Stein accept Medicare assignment?
Yes. Medicare's clinician data says Anthony S. Stein 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 Anthony S. Stein?
(626) 256-4673, as listed in official Medicare / NPI Registry data.
What is Anthony S. Stein's NPI number?
1225046147. 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 Anthony S. Stein is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

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

  • City of Hope Medical Foundation982 clinicians in the group

Specialties

Find other Hematology/Oncology doctors in California →

Other hematologist-oncologists in Duarte

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

All hematologist-oncologists in Duarte →

Clinician information

CredentialMD
Graduation year1978
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1225046147
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