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Obstetrics/Gynecology

Kelly M. Treder

Works at hospitals in Boston, MA · Massachusetts

Summary

Kelly M. Treder is an OB-GYN at 637 Washington St, Dorchester, MA 02124. Phone: (617) 825-9660. Accepts Medicare assignment. In 2024, Kelly M. Treder had 11 Original Medicare patients and 19 services. NPI 1235558727. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: OB-GYN (Medicare lists Obstetrics/Gynecology)
  • Address: 637 Washington St, Dorchester, MA 02124 · Directions (1 more location)
  • Phone: (617) 825‑9660
  • Medicare: Accepts Medicare assignment
  • Hospital: Boston Medical Center
  • Group practice: Codman Square Health Center, Inc (+1 more)
  • Medical school: University Of Washington School Of Medicine · graduated 2014 (12 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Kelly M. Treder, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Kelly M. Treder accept Medicare assignment?
Yes. Medicare's clinician data says Kelly M. Treder accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Kelly M. Treder see?
In 2024, CMS data shows 11 Original Medicare patients and 19 services for Kelly M. Treder. This counts Original Medicare only and measures volume, not quality.
What is Kelly M. Treder's NPI number?
1235558727. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Kelly M. Treder, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients11
Services billed to Medicare19
Different services or procedures14
Participating Medicare providerYes
Average age of these patients54

Hospitals where Kelly M. Treder works

Medicare's Facility Affiliation Data lists Kelly M. Treder at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

  • Boston Medical CenterBoston, MA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 220031

Practice locations

Addresses where Kelly M. Treder is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Kelly M. Treder as a member of these groups (CMS data updated October 2, 2026).

  • Codman Square Health Center, Inc67 clinicians in the group
  • Boston University Obstetrics and Gynecology Foundation Inc60 clinicians in the group

Specialties

Find other Obstetrics/Gynecology doctors in Massachusetts →

Other OB-GYNs in Dorchester

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

All OB-GYNs in Dorchester →

Other clinicians in Codman Square Health Center, Inc

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

Medical schoolUniversity Of Washington School Of Medicine
Graduation year2014 (12 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1235558727
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 October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians