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

Karen L Ahlert, MD

Individual provider Surgery Physician · NPI 1083819502

Karen L Ahlert, MD is a General Surgery in Cambridge, Massachusetts. Graduated from Tufts University School of Medicine in 2007, 19 years ago. Practices with Mount Auburn Professional Services Inc, a 228-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
19
Trained at
Tufts University School of Medicine
Licensed in
MA
In the registry since
2007
Specialties on file
2
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

300 Mount Auburn St Ste 407
Cambridge, MA 02138-5600
Phone: (617) 868-7456
Fax: (617) 868-9243
Show map & directions

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

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence 253631 (MA)
Surgery Physician Taxonomy 208600000X · Licence L-231744 (MA)

Record details

NPI number1083819502
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 15, 2007
Last updated in NPPESMarch 20, 2017

Medicare enrollment

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

Medicare specialtyGENERAL SURGERY
Medical schoolTUFTS UNIVERSITY SCHOOL OF MEDICINE
Graduated 2007 (19 years in practice)
Group practice Mount Auburn Professional Services Inc — 228 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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