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

DR. MARA LORENZI MD
NPI 1023099470
Pathology - Clinical Pathology/Laboratory Medicine in Boston, MA

Q: What is Mara Lorenzi's NPI number?

The NPI number for Mara Lorenzi is 1023099470. It was assigned to this individual provider in the NPPES registry on November 10, 2005.

Q: What is Mara Lorenzi's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Clinical Pathology/Laboratory Medicine, with taxonomy code 207ZP0105X.

Q: When was this NPI record last updated?

The NPPES record for Mara Lorenzi 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 28 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.

Active since November 10, 2005

50 STANIFORD ST, 3RD FLOOR S50 3 DIABETES UNIT, BOSTON, MA 02114(617) 726-8722(617) 724-8534 Get Directions Write a Review

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

On this page

About Dr. Mara Lorenzi Md NPPES

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

DR. MARA LORENZI MD (NPI 1023099470) is an individual clinical pathology/laboratory medicine provider in Boston, Massachusetts, licensed in Massachusetts (59231) and active in the NPI registry since November 2005.

NPPES Registry Identity

NPI1023099470

Entity TypeIndividualFemale

Primary Taxonomy207ZP0105X

Provider Legal NameDR. MARA LORENZICredential: MD

Location Address50 STANIFORD ST, 3RD FLOOR S50 3 DIABETES UNITBoston, MA 02114-2517

Mailing AddressPo Box 9142, Mass General Physician OrganizationCharlestown, MA 02129-9142 · (617) 724-0287 · Fax (617) 726-2894

Phone(617) 726-8722

Fax(617) 724-8534

Sole ProprietorNo

Enumeration DateNovember 10, 2005

Last NPPES UpdateJuly 13, 2026

✔ NPI 1023099470 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPathology · Clinical Pathology/Laboratory MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207ZP0105X

License✔ Licensed in MA · 59231

Definition

A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.

50 STANIFORD ST, Boston, MA 02114

Open in Google Maps ↗

Other Identifiers 3

Other773885MA · Tufts Health Plan

OtherJ18353MA · Bcbs Ma

Medicaid3170284MA

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.

MARIA JOSE LOPEZ VELASQUEZ MD

Ophthalmology

50 STANIFORD ST
BOSTON, MA 02114

Suffolk County (617) 367-4800

SEAN M BURNS M.D.

Internal Medicine (Endocrinology, Diabetes & Metabolism)

50 STANIFORD ST, SUITE 340
BOSTON, MA 02114

Suffolk County (617) 726-8722

DR. ALBERT S YEUNG MD

Psychiatry & Neurology (Psychiatry)

50 STANIFORD ST, SUITE 401 S50 401
BOSTON, MA 02114

Suffolk County (617) 726-5138

MARK D KIRSTEIN OD

Optometrist

50 STANIFORD ST, SUITE 600
BOSTON, MA 02114

Suffolk County (617) 367-4800

JASON S ROTHMAN MD

Ophthalmology

50 STANIFORD ST, SUITE 600
BOSTON, MA 02114

Suffolk County (617) 367-4800

AP DENTAL STANIFORD PLLC

Clinic/Center (Dental)

50 STANIFORD ST
BOSTON, MA 02114

Suffolk County (978) 223-3742

DR. JOSEPH C KVEDAR MD

Dermatology

50 STANIFORD ST, SUITE 200
BOSTON, MA 02114

Suffolk County (617) 726-2914

DPB CHARLES RIVER, LLC

Clinic/Center (Dental)

50 STANIFORD ST, 303
BOSTON, MA 02114

Suffolk County (617) 523-4555

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 Mara Lorenzi's NPI number?

The NPI number for Mara Lorenzi is 1023099470. It was assigned to this individual provider in the NPPES registry on November 10, 2005.

Where is Mara Lorenzi located?

Mara Lorenzi practices at 50 Staniford St 3rd Floor S50 3 Diabetes Unit, Boston, MA 02114. The listed phone number is (617) 726-8722.

What is Mara Lorenzi's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Clinical Pathology/Laboratory Medicine, with taxonomy code 207ZP0105X.

When was this NPI record last updated?

The NPPES record for Mara Lorenzi 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 28 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.