CLAUS Z SIMONSEN MD, PHD
NPI 1649400276
Psychiatry & Neurology - Neurology in Boston, MA

Active since July 16, 2009
MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET, BOSTON, MA 02114(617) 726-2066 Get Directions Write a Review

NPPES record last updated: July 16, 2009. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Claus Z Simonsen Md, Phd NPPES

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

CLAUS Z SIMONSEN MD, PHD (NPI 1649400276) is an individual neurology provider in Boston, Massachusetts, licensed in Massachusetts (L-240559) and active in the NPI registry since July 2009.

NPPES Registry Identity

NPI1649400276
Entity TypeIndividualMale
Primary Taxonomy2084N0400X
Provider Legal NameCLAUS Z SIMONSENCredential: MD, PHD
Location AddressMASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREETBoston, MA 02114
Mailing AddressMassachusetts General Hospital, 55 Fruit StreetBoston, MA 02114 · (617) 726-2066
Sole ProprietorNo
Enumeration DateJuly 16, 2009
NPI 1649400276 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPsychiatry & Neurology · NeurologyAllopathic & Osteopathic Physicians
Taxonomy Code2084N0400X
License Licensed in MA · L-240559
Definition

A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.

MASSACHUSETTS GENERAL HOSPITAL, Boston, MA 02114

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.

Internal Medicine (Cardiovascular Disease)
MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET
BOSTON, MA 02114
Internal Medicine
MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET
BOSTON, MA 02114
Internal Medicine (Nephrology)
MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET
BOSTON, MA 02114
Thoracic Surgery (Cardiothoracic Vascular Surgery)
MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET
BOSTON, MA 02114
Pediatrics
MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT ST.
BOSTON, MA 02114
Surgery (Surgical Oncology)
MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT ST.
BOSTON, MA 02114
Student in an Organized Health Care Education/Training Program
MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET
BOSTON, MA 02114
Orthopaedic Surgery
MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT ST.
BOSTON, MA 02114

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 Claus Simonsen's NPI number?

The NPI number for Claus Simonsen is 1649400276. It was assigned to this individual provider in the NPPES registry on July 16, 2009.

Where is Claus Simonsen located?

Claus Simonsen practices at Massachusetts General Hospital 55 Fruit Street, Boston, MA 02114. The listed phone number is (617) 726-2066.

What is Claus Simonsen's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.

When was this NPI record last updated?

The NPPES record for Claus Simonsen was last updated on July 16, 2009. NPI Profile syncs with the weekly NPPES data releases published by CMS.