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Radiation Oncology

Jennifer L. Pretz, MD

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

Summary

Dr. Jennifer L. Pretz, MD is a radiation oncologist at 101 Columbian St, South Weymouth, MA 02190. Phone: (781) 340-8000. Accepts Medicare assignment. In 2024, Jennifer L. Pretz had 163 Original Medicare patients and 2,234 services. NPI 1568782936. 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: Radiation oncologist (Medicare lists Radiation Oncology)
  • Address: 101 Columbian St, South Weymouth, MA 02190 · Directions (2 more locations)
  • Phone: (781) 340‑8000
  • Medicare: Accepts Medicare assignment
  • Hospitals: Brigham and Women's Hospital, South Shore Hospital
  • Group practice: Brigham and Womens Physicians Organization Inc (+2 more)
  • Medical school: Stanford University School Of Medicine · graduated 2010 (16 years since medical school)
  • Gender (as listed): Female
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Jennifer L. Pretz, 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 Jennifer L. Pretz accept Medicare assignment?
Yes. Medicare's clinician data says Jennifer L. Pretz 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 Jennifer L. Pretz see?
In 2024, CMS data shows 163 Original Medicare patients and 2,234 services for Jennifer L. Pretz. This counts Original Medicare only and measures volume, not quality.
What is Jennifer L. Pretz's NPI number?
1568782936. 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 Jennifer L. Pretz, 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 patients163
Services billed to Medicare2,234
Different services or procedures28
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Ct guidance for insertion of radiation therapy fields (77014)266 services
  2. Radiation treatment delivery,3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; 11-19 mev (G6013)266 services
  3. Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy (G6002)211 services
  4. Intra-fraction localization and tracking of target or patient motion during delivery of radiation therapy (eg,3d positional tracking, gating, 3d surface tracking), each fraction of treatment (G6017)195 services
  5. Radiation treatment management, 5 treatment sessions (77427)192 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)75%
  • Arthritis48%
  • Anxiety31%
  • Osteoporosis31%

Hospitals where Jennifer L. Pretz works

Medicare's Facility Affiliation Data lists Jennifer L. Pretz 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.

  • Brigham and Women's HospitalBoston, MA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 220110
  • South Shore HospitalSouth Weymouth, MA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 220100

Practice locations

Addresses where Jennifer L. Pretz is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Jennifer L. Pretz as a member of these groups (CMS data updated October 2, 2026).

  • Brigham and Womens Physicians Organization Inc2,994 clinicians in the group
  • Dana-Farber Cancer Institute, Inc.684 clinicians in the group
  • Radiation Therapy of Southeastern Mass, LLC9 clinicians in the group

Specialties

Find other Radiation Oncology doctors in Massachusetts →

Other radiation oncologists in Massachusetts

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

All radiation oncologists in Massachusetts →

Other clinicians in Brigham and Womens Physicians Organization Inc

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

Clinician information

CredentialMD
Medical schoolStanford University School Of Medicine
Graduation year2010 (16 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1568782936
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