Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. KATHLEEN LAMBERT MD
NPI 1205833555
Internal Medicine in Lexington, MA

Active since July 01, 2005
57 BEDFORD ST, STE 130, LEXINGTON, MA 02420(781) 868-7500(781) 861-1409 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Kathleen Lambert Md NPPES

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

DR. KATHLEEN LAMBERT MD (NPI 1205833555) is an individual internal medicine provider in Lexington, Massachusetts, licensed in Massachusetts (155110) and active in the NPI registry since July 2005.

NPPES Registry Identity

NPI1205833555
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. KATHLEEN LAMBERTCredential: MD
Location Address57 BEDFORD ST, STE 130Lexington, MA 02420-4500
Mailing Address1 Arsenal Market PlWatertown, MA 02472-5018 · (617) 673-1851 · Fax (617) 499-5579
Fax(781) 861-1409
Sole ProprietorNo
Enumeration DateJuly 1, 2005
Last NPPES UpdateJuly 13, 2026
NPI 1205833555 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in MA · 155110
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.
57 BEDFORD ST, Lexington, MA 02420

Other Identifiers 1

Medicaid3183068MA

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.

Physical Therapist
57 BEDFORD ST, SUITE 202
LEXINGTON, MA 02420
Social Worker (Clinical)
57 BEDFORD ST, SUITE 125
LEXINGTON, MA 02420
Internal Medicine
57 BEDFORD ST, STE 130
LEXINGTON, MA 02420
Speech-Language Pathologist
57 BEDFORD ST, SUITE 203
LEXINGTON, MA 02420
Physical Therapist
57 BEDFORD ST, SUITE 202
LEXINGTON, MA 02420
Speech-Language Pathologist
57 BEDFORD ST, SUITE 203
LEXINGTON, MA 02420
Physical Therapist
57 BEDFORD ST, STE 202
LEXINGTON, MA 02420
Speech-Language Pathologist
57 BEDFORD ST, SUITE 203
LEXINGTON, MA 02420

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 Kathleen Lambert's NPI number?

The NPI number for Kathleen Lambert is 1205833555. It was assigned to this individual provider in the NPPES registry on July 1, 2005.

Where is Kathleen Lambert located?

Kathleen Lambert practices at 57 Bedford St Ste 130, Lexington, MA 02420. The listed phone number is (781) 868-7500.

What is Kathleen Lambert'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 Kathleen Lambert was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 24 days 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.