Malgorzata Mcmasters
Malgorzata Mcmasters is a Hematology & Oncology specialist based in Boston, MA with over 31 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Malgorzata Mcmasters has been part of the Boston medical community since 2007 in group practice. With 31+ years of experience, she has been practicing in the Boston area. She regularly sees Medicare patients with hypertension, high cholesterol, and arthritis (per CMS claims data).
At a glance
- Prescribes opioids less than 16% of reporting doctors in Massachusetts
- Virtual visits available — no app or travel required
Older · 217dNPPES updated 2026-02-04 · verify NPI on CMS · Verify license at Massachusetts Board of Registration in Medicine
How Does This Doctor Compare?
Based on Medicare data, this doctor prescribes opioid pain medications conservatively.
Opioid Rx
↓ Lower = better4.99%
Massachusetts avg: 4 · US avg: 5.1
✓ Higher than most doctors nationally(-0.1 pts)
4.99% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.
Medicare Patients
304
Unique beneficiaries
Standard volumePrescription Recipients
87
Patients prescribed
Prescriptions Written
441
Total claims
Total Medicare drug cost: $1.92M
Percentile rankings compared against 1,606 reporting peers in Massachusetts.
Data Note: Sourced from CMS Medicare Provider Utilization & Payment Data. Percentile rankings compare this provider against all peers with reported data in the same state. Updated annually to reflect the latest federal reporting cycle.
What This Doctor Treats Most
Based on Medicare claims data — here's what patients commonly see this doctor for
Based on Medicare data, this doctor primarily manages Hypertension, High Cholesterol, and Arthritis.
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↑ More patients than average (+5%) — a focus area for this doctor
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↑ More patients than average (+5%) — a focus area for this doctor
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↑ More patients than average (+2%) — a focus area for this doctor
Gradual loss of kidney function over time, often linked to diabetes or hypertension
US avg: 29.6%↑ More patients than average (+10%) — a focus area for this doctor
Excessive worry or fear that interferes with daily life
US avg: 34.1%↓ Fewer patients than average (-2%) — less common here
Conditions affecting emotional state, including depression and bipolar disorder
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
US avg: 31.7%↓ Fewer patients than average (-4%) — less common here
A mood disorder causing persistent sadness and loss of interest in activities
US avg: 31.8%↓ Fewer patients than average (-5%) — less common here
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Board certified · Feb 3, 2026
Self-reported via NPPES
31 years in practice
Senior practitioner
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
Taxonomy: 207RH0003X
Mailing address
55 Fruit St, Boston, MA 02114-2696
Differs from practice location
Virtual Hematology & Oncology Care With Malgorzata Mcmasters
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Malgorzata Mcmasters for blood pressure monitoring, cholesterol management, arthritis follow-ups — no travel to Boston required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.
Frequently Asked Questions
Common questions about Malgorzata Mcmasters
Dr. Mcmasters is listed as active in the NPI registry with telehealth listed in Boston, MA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (617) 726-2000.
Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Physician Comparator. See Data Methodology.
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Contact Malgorzata Mcmasters
Practice Location
55 Fruit St, Boston, MA 02114-2621
Mailing Address
55 Fruit St, Boston, MA 02114-2696
This is a provider directory. Contact the office directly to schedule appointments.
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