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

LAKE JOSEPH WALSH
NPI 1740923606
Internal Medicine in Boston, MA

Active since April 19, 2022
801 MASSACHUSETTS AVE, STE 5B CROSSTOWN BLDG, BOSTON, MA 02118(617) 414-5951(617) 414-9201 Get Directions Write a Review

NPPES record last updated: July 31, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Jul 31, 2026, Apr 19, 2022 (2 updates tracked since 2022).

About Lake Joseph Walsh NPPES

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

LAKE JOSEPH WALSH (NPI 1740923606) is an individual internal medicine provider in Boston, Massachusetts, licensed in Massachusetts (1028762) and active in the NPI registry since April 2022.

NPPES Registry Identity

NPI1740923606
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameLAKE JOSEPH WALSH
Location Address801 MASSACHUSETTS AVE, STE 5B CROSSTOWN BLDGBoston, MA 02118
Mailing Address960 Massachusetts Ave, Ste 2Boston, MA 02118 · (617) 414-5951 · Fax (617) 414-9201
Phone(617) 414-5951
Fax(617) 414-9201
Sole ProprietorNo
Enumeration DateApril 19, 2022
Last NPPES UpdateJuly 31, 20262 updates tracked since enumeration
NPPES CertifiedJuly 31, 2026
✔ NPI 1740923606 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 · 1028762
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.
801 MASSACHUSETTS AVE, Boston, MA 02118
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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.

DR. FELICIA ELIZABETH PATCH MD
Internal Medicine
801 MASSACHUSETTS AVE, CROSSTOWN 2
BOSTON, MA 02118
Suffolk County (617) 414-4376
CORINA ELENA BEINER MARTINEZ
Student in an Organized Health Care Education/Training Program
801 MASSACHUSETTS AVE
BOSTON, MA 02118
Suffolk County (617) 414-5951
MAYERLIN MORLA UBIERA
Counselor (Mental Health)
801 MASSACHUSETTS AVE
BOSTON, MA 02118
Suffolk County (617) 651-2538
XANTHIA ALIX TUCKER MD
Internal Medicine
801 MASSACHUSETTS AVE, SUITE 5A, CROSSTOWN BLDG
BOSTON, MA 02118
Suffolk County (617) 414-5951
DR. JENNIFER K HUGHES M.D.
Internal Medicine (Hospice and Palliative Medicine)
801 MASSACHUSETTS AVE, CROSSTOWN 2
BOSTON, MA 02118
Suffolk County (617) 414-4376
LUCY CURELL
Community Health Worker
801 MASSACHUSETTS AVE
BOSTON, MA 02118
Suffolk County (617) 991-8264
AMOS WU
Internal Medicine
801 MASSACHUSETTS AVE, CROSSTOWN 2
BOSTON, MA 02118
Suffolk County (617) 414-7399
MS. ARCHANA VASUDEVAN DO
Internal Medicine
801 MASSACHUSETTS AVE, CROSSTOWN 2
BOSTON, MA 02118
Suffolk County (617) 414-7399

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 Lake Walsh's NPI number?

The NPI number for Lake Walsh is 1740923606. It was assigned to this individual provider in the NPPES registry on April 19, 2022.

Where is Lake Walsh located?

Lake Walsh practices at 801 Massachusetts Ave Ste 5B Crosstown Bldg, Boston, MA 02118. The listed phone number is (617) 414-5951.

What is Lake Walsh'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 Lake Walsh was last updated on July 31, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 31 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.