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

DR. JOHN STUART LOOPER M.D.
NPI 1831149244
Psychiatry & Neurology - Geriatric Psychiatry in Chestnut Hill, MA

Q: What is John Looper's NPI number?

The NPI number for John Looper is 1831149244. It was assigned to this individual provider in the NPPES registry on May 10, 2006.

Q: What is John Looper's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Geriatric Psychiatry, with taxonomy code 2084P0805X.

Q: When was this NPI record last updated?

The NPPES record for John Looper 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 39 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 10, 2006

122 WARD ST, CHESTNUT HILL, MA 02467(617) 855-3237(617) 855-3739 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Dr. John Stuart Looper M.d. NPPES

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

DR. JOHN STUART LOOPER M.D. (NPI 1831149244) is an individual geriatric psychiatry provider in Chestnut Hill, Massachusetts, licensed in Massachusetts (54710) and active in the NPI registry since May 2006.

NPPES Registry Identity

NPI1831149244

Entity TypeIndividualMale

Primary Taxonomy2084P0805X

Provider Legal NameDR. JOHN STUART LOOPERCredential: M.D.

Location Address122 WARD STChestnut Hill, MA 02467-1029

Mailing Address122 Ward StChestnut Hill, MA 02467-1029 · (617) 855-3237 · Fax (617) 855-3739

Phone(617) 855-3237

Fax(617) 855-3739

Sole ProprietorNo

Enumeration DateMay 10, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1831149244 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · Geriatric PsychiatryAllopathic & Osteopathic Physicians

Taxonomy Code2084P0805X

License✔ Licensed in MA · 54710

Definition

Geriatric Psychiatry is a subspecialty with psychiatric expertise in prevention, evaluation, diagnosis and treatment of mental and emotional disorders in the elderly, and improvement of psychiatric care for healthy and ill elderly patients.

122 WARD ST, Chestnut Hill, MA 02467

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Other Identifiers 1

Medicaid3035433MA

Other Providers at the Same Location NPPES

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

RUTHANN R LOOPER NURSE PRACTITIONER

Nurse Practitioner (Psychiatric/Mental Health)

122 WARD ST
CHESTNUT HILL, MA 02467

Norfolk County (617) 527-1128

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 John Looper's NPI number?

The NPI number for John Looper is 1831149244. It was assigned to this individual provider in the NPPES registry on May 10, 2006.

Where is John Looper located?

John Looper practices at 122 Ward St, Chestnut Hill, MA 02467. The listed phone number is (617) 855-3237.

What is John Looper's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Geriatric Psychiatry, with taxonomy code 2084P0805X.

When was this NPI record last updated?

The NPPES record for John Looper 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 39 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.