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Hematology/Oncology

Sarah K. May, MD

Works at hospitals in Boston, MA · South Weymouth, MA · Massachusetts

Summary

Sarah K. May, MD (Hematology/Oncology) is listed by Medicare at 2 hospitals in Boston, MA and South Weymouth, MA. NPI 1801879002. 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 Sarah K. May, 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
35Years since medical school (graduated 1991)
Tufts University School Of MedicineMedical school
FemaleGender (as listed)
Dana-Farber Cancer Institute, Inc.Group practice

Quick answers

Which hospitals does Sarah K. May work at?
Medicare's official clinician data lists Sarah K. May at 2 hospitals: Brigham and Women's Hospital and South Shore Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Sarah K. May see patients?
Medicare's clinician data lists 1 practice location in Boston, MA. Call before your visit to confirm the address.
What is Sarah K. May's specialty?
Medicare lists Hematology/Oncology as the primary specialty.
Does Sarah K. May accept Medicare assignment?
Yes. Medicare's clinician data says Sarah K. May 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 Sarah K. May?
(617) 632-3586, as listed in official Medicare / NPI Registry data.
What is Sarah K. May's NPI number?
1801879002. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Sarah K. May works

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

Group practices

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

  • Dana-Farber Cancer Institute, Inc.684 clinicians in the group

Specialties

Find other Hematology/Oncology doctors in Massachusetts →

Other hematologist-oncologists in Boston

Clinicians with the same Medicare primary specialty in Boston, MA — not a recommendation.

All hematologist-oncologists in Boston →

Clinician information

CredentialMD
Medical schoolTufts University School Of Medicine
Graduation year1991
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1801879002
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