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DR. KAREN DEBRA LEITNER M.D.
NPI 1043283658
Internal Medicine in Cambridge, MA

Active since February 13, 2006
237 HAMPSHIRE ST, CAMBRIDGE, MA 02139(617) 575-5570 Get Directions Write a Review

NPPES record last updated: November 29, 2011. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Karen Debra Leitner M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. KAREN DEBRA LEITNER M.D. (NPI 1043283658) is an individual internal medicine provider in Cambridge, Massachusetts, licensed in Massachusetts (228045) and active in the NPI registry since February 2006.

NPPES Registry Identity

NPI1043283658
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. KAREN DEBRA LEITNERCredential: M.D.
Location Address237 HAMPSHIRE STCambridge, MA 02139-1306
Mailing Address237 Hampshire StCambridge, MA 02139-1306 · (617) 575-5570
Phone(617) 575-5570
Sole ProprietorNo
Enumeration DateFebruary 13, 2006
Last NPPES UpdateNovember 29, 2011
✔ NPI 1043283658 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MA · 228045
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedPediatricsTaxonomy 208000000X · License 228045 (MA)
237 HAMPSHIRE ST, Cambridge, MA 02139
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Other Identifiers 2

Medicaid2120763MA
Medicare UPIN164804

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ALEXANDRA OLIVO
Registered Nurse
237 HAMPSHIRE ST
CAMBRIDGE, MA 02139
Middlesex County (617) 575-5570
LARISSA LUCAS
Internal Medicine
237 HAMPSHIRE ST
CAMBRIDGE, MA 02139
Middlesex County (617) 575-5570
VENDLA ESLER
Registered Nurse (Administrator)
237 HAMPSHIRE ST
CAMBRIDGE, MA 02139
Middlesex County (301) 674-2732
DAVID M ELVIN M.D.
Internal Medicine
237 HAMPSHIRE ST
CAMBRIDGE, MA 02139
Middlesex County (617) 575-5550
HENRIETTA BARNES
Internal Medicine
237 HAMPSHIRE ST
CAMBRIDGE, MA 02139
Middlesex County (617) 575-5570
PATRICIA HERZOG RN
Registered Nurse (Case Management)
237 HAMPSHIRE ST
CAMBRIDGE, MA 02139
Middlesex County (617) 575-5570
YELIZAVETA DIMANT
Social Worker (Clinical)
237 HAMPSHIRE ST
CAMBRIDGE, MA 02139
Middlesex County (857) 529-1788
CAMBRIDGE HEALTH ALLIANCE
Clinic/Center (Primary Care)
237 HAMPSHIRE ST
CAMBRIDGE, MA 02139
Middlesex County (617) 529-4984

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Karen Leitner's NPI number?

The NPI number for Karen Leitner is 1043283658. It was assigned to this individual provider in the NPPES registry on February 13, 2006.

Where is Karen Leitner located?

Karen Leitner practices at 237 Hampshire St, Cambridge, MA 02139. The listed phone number is (617) 575-5570.

What is Karen Leitner's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

When was this NPI record last updated?

The NPPES record for Karen Leitner was last updated on November 29, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.