NPPES file of Aug 9, 2026

Sarah K. May, M.D.

Hematology & Oncology Physician · Weymouth, MA

Sarah K. May, M.D. is a hematology & oncology physician with a practice address in Weymouth, Massachusetts, and NPI 1801879002, issued on Nov 22, 2005. Check the license (Massachusetts 78169, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1801879002
Name
Sarah K. May
Credential
M.D.
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
78169 MA
Self-reported in NPPES; status is on the state search
Practice location
51 Performance Dr, Weymouth, MA 02189
Phone
(781) 337-9091
Enumerated
Nov 22, 2005
Record last updated
Mar 20, 2017 (not updated in 9 years: call before relying on the address or phone)
Fax
(781) 337-9619
Medicaid ID
3161056 MA
Medicare enrollment
Enrolled (PECOS I20101015000190); accepts Medicare assignment
Medical or professional school
Tufts University School Of Medicine, 1991
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 51 Performance Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Mark Anderson, MDMedical Oncology Physician1588652093
  2. Michael Anderson, M.D.Hematology & Oncology Physician1144201534
  3. Graham Boyd, MDRadiation Oncology Physician1548827892
  4. Abbie BresnahanPhysician Assistant1447125844
  5. Hsi-Pin Chen, MDObstetrics & Gynecology Physician1871550228
  6. Benjamin Christian, M.D.Plastic and Reconstructive Surgery Physician1730307588

Verify Sarah K. May in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 78169
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Massachusetts license search

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The practice group's MIPS final score for 2023 (Medicare payment program): 86.3 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score69.4
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Dana-Farber Cancer Institute, Inc.Boston, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Sarah K. May among 461 hematology & oncology physician records in Massachusetts

Sarah K. May, M.D. is one of 461 hematology & oncology physician records with a practice address in Massachusetts. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 86% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated1991 · median 2004 among the 303 with a school on file
  • Record last updated2017 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hematology & Oncology Physician providers in Massachusetts

There are 461 hematology & oncology physician records in Massachusetts.

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Michael Anderson, M.D.Weymouth, MA 021891144201534
  2. James Everett, M.D.Weymouth, MA 021891215911789
  3. Paul Musto, M.D.Weymouth, MA 021891699758896
  4. Mahesh Pandey, MDWeymouth, MA 021891164618757
  5. Deepak Chander, M.D.South Weymouth, MA 021901659666261
  6. Meredith Faggen, M.D.S Weymouth, MA 021901215093968
  7. Shail Maingi, MDSouth Weymouth, MA 021901114183795
  8. Anne RobergeWeymouth, MA 021901639115041

Common questions

What is Sarah K. May, M.D.'s NPI number?

Sarah K. May, M.D.'s National Provider Identifier (NPI) is 1801879002, issued on Nov 22, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Sarah K. May, M.D. located?

The NPPES record lists a practice address at 51 Performance Dr, Weymouth, MA, 02189. Phone: (781) 337-9091. Providers update this record themselves, so call before visiting.

How can I verify Sarah K. May, M.D.'s license?

NPPES lists Massachusetts license number 78169, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

What is Sarah K. May, M.D.'s MIPS final score?

The 2023 MIPS final score is 86.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.