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

Hematology/Oncology

Clara S. Chan, MD

Sees patients in Silver Spring, MD · Maryland

Summary

Clara S. Chan, MD (Hematology/Oncology) is enrolled with Medicare at 1 practice location in Silver Spring, MD. NPI 1952338592. 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 Clara S. Chan, 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
50Years since medical school (graduated 1976)
George Washington University School Of MedicineMedical school
FemaleGender (as listed)

Quick answers

Where does Clara S. Chan see patients?
Medicare's clinician data lists 1 practice location in Silver Spring, MD. Call before your visit to confirm the address.
What is Clara S. Chan's specialty?
Medicare lists Hematology/Oncology as the primary specialty, and also Internal Medicine.
Does Clara S. Chan accept Medicare assignment?
Yes. Medicare's clinician data says Clara S. Chan 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 Clara S. Chan?
(301) 681-4600, as listed in official Medicare / NPI Registry data.
What is Clara S. Chan's NPI number?
1952338592. 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 Clara S. Chan is enrolled with Medicare (CMS data updated 2026-10-02).

Specialties

Find other Hematology/Oncology doctors in Maryland →

Other hematologist-oncologists in Maryland

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

All hematologist-oncologists in Maryland →

Clinician information

CredentialMD
Medical schoolGeorge Washington University School Of Medicine
Graduation year1976
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1952338592
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