Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Mark S Lewis, MD

Individual provider Anesthesiology Physician · NPI 1942282280

Dr. Mark S Lewis, MD is an Anesthesiology in Boston, Massachusetts. Graduated from Js Weill Medical College, Cornell University in 1983, 43 years ago. Practices with Pratt Anesthesiology Associates Inc, a 155-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
43
Trained at
Js Weill Medical College, Cornell University
Licensed in
MA
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

800 Washington St #298
Boston, MA 02111
Phone: (617) 636-5000
Fax: (617) 636-1465
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 55261 (MA)

Record details

NPI number1942282280
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 14, 2005
Last updated in NPPESApril 27, 2017

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolJS WEILL MEDICAL COLLEGE, CORNELL UNIVERSITY
Graduated 1983 (43 years in practice)
Group practice Pratt Anesthesiology Associates Inc — 155 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Boston