Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Margaret Welsh Cavanaugh-Hussey, MD, MPH

Individual provider Dermatopathology Physician · NPI 1558597039

Dr. Margaret Welsh Cavanaugh-Hussey, MD, MPH practises Dermatology in Boston, Massachusetts. Graduated from Johns Hopkins University School of Medicine in 2009, 17 years ago. Practices with Boston Health Care for the Homeless Program, Inc, a 74-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
17
Trained at
Johns Hopkins University School of Medicine
Licensed in
MA
In the registry since
2009
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
MPH — Master of Public Health
A graduate degree in population health.

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Practice location Address checks out

221 Longwood Ave Divisio Of Dermatology / Brigham And Women's Hospital
Boston, MA 02115-5804
Phone: (617) 732-4918
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • West Roxbury Va Medical Center, West Roxbury, MA 02132 — (857) 364-4757

Specialties & licences

Dermatology Physician (primary) Taxonomy 207N00000X · Licence 255852 (MA)
Dermatopathology Physician Taxonomy 207ND0900X · Licence 2552852 (MA)

Record details

NPI number1558597039
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD , MPH
Sole proprietorYes
NPI enumeratedJune 10, 2009
Last updated in NPPESSeptember 19, 2025
Certification dateSeptember 19, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyDERMATOLOGY
Medical schoolJOHNS HOPKINS UNIVERSITY SCHOOL OF MEDICINE
Graduated 2009 (17 years in practice)
Group practice Boston Health Care For The Homeless Program, Inc. — 74 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Removal of skin lesions 772 times · 91st percentile
Skin biopsy 144 times · 80th percentile

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients597
Services billed 2,409 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Boston Health Care for the Homeless Program, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 74 clinicians in the practice; 12 are shown here.

Other providers in Boston