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

BRIAN S MERCER M.D.
NPI 1821045618
Psychiatry & Neurology - Neurology in Newton, MA

Q: What is Brian Mercer's NPI number?

The NPI number for Brian Mercer is 1821045618. It was assigned to this individual provider in the NPPES registry on May 27, 2006.

Q: What is Brian Mercer's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Brian Mercer 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 30 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 May 27, 2006

173 LINCOLN ST, NEWTON, MA 02461(617) 527-1855 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Brian S Mercer M.d. NPPES

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

BRIAN S MERCER M.D. (NPI 1821045618) is an individual neurology provider in Newton, Massachusetts, licensed in Massachusetts (48639) and active in the NPI registry since May 2006.

NPPES Registry Identity

NPI1821045618

Entity TypeIndividualMale

Primary Taxonomy2084N0400X

Provider Legal NameBRIAN S MERCERCredential: M.D.

Location Address173 LINCOLN STNewton, MA 02461-1501

Mailing Address173 Lincoln StNewton, MA 02461-1501 · (617) 527-1855

Phone(617) 527-1855

Sole ProprietorNo

Enumeration DateMay 27, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1821045618 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 · 48639

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.

173 LINCOLN ST, Newton, MA 02461

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Other Providers at the Same Location NPPES

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

J P STRANG M.D.

Psychiatry & Neurology (Psychiatry)

173 LINCOLN ST
NEWTON HIGHLANDS, MA 02461

Middlesex County (617) 527-1855

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 Brian Mercer's NPI number?

The NPI number for Brian Mercer is 1821045618. It was assigned to this individual provider in the NPPES registry on May 27, 2006.

Where is Brian Mercer located?

Brian Mercer practices at 173 Lincoln St, Newton, MA 02461. The listed phone number is (617) 527-1855.

What is Brian Mercer'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 Brian Mercer 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 30 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.