Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Sasha Stephen, MD

Individual provider Dermatology Physician · NPI 1992097646

Dr. Sasha Stephen, MD practises Dermatology in Boston, Massachusetts. Graduated from Perelman School of Med at the University of Pennsylvania in 2011, 15 years ago. Practices with Dana-Farber Cancer Institute, Inc, a 668-clinician group, works from 4 locations, accepts Medicare assignment and offers telehealth. Licensed in Colorado, Massachusetts and Pennsylvania.

Years since qualifying
15
Trained at
Perelman School of Med at the University of Pennsylvania
Licensed in
CO, MA, PA
In the registry since
2011
Specialties on file
5
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

75 Francis St
Boston, MA 02115-6110
Phone: (617) 732-5500
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 50 Staniford St, Boston, MA 02114-2517 — (617) 726-2914
  • 221 Longwood Ave, Boston, MA 02115-5804 — (617) 732-4918
  • 100 Brigham Way, Westwood, MA 02090-2442 — (877) 937-8128

Specialties & licences

Dermatology Physician (primary) Taxonomy 207N00000X · Licence 294725 (MA)
Dermatology Physician Taxonomy 207N00000X · Licence DR.0061520 (CO)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X · Licence MT199331 (PA)
Dermatology Physician Taxonomy 207N00000X · Licence MT199331 (PA)
Internal Medicine Physician Taxonomy 207R00000X · Licence MT199331 (PA)

Record details

NPI number1992097646
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 12, 2011
Last updated in NPPESJune 11, 2026
Certification dateJune 11, 2026

Medicare enrollment

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

Medicare specialtyDERMATOLOGY
Medical schoolPERELMAN SCHOOL OF MED AT THE UNIVERSITY OF PENNSYLVANIA
Graduated 2011 (15 years in practice)
Group practice Dana-Farber Cancer Institute, Inc. — 668 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 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 344 times · 83rd percentile
Skin biopsy 52 times · 69th percentile
Removal or shaving of skin growth 1–10 times

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 patients517
Services billed 2,247 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. Those with a page here are linked.

Also affiliated with 1 hospital, which CMS identifies by certification number only.

Colleagues at Dana-Farber Cancer Institute, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 668 clinicians in the practice; 12 are shown here.

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