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DR. MATTHEW J O BRIEN MD
NPI 1972551430
Internal Medicine in Buffalo, NY

Active since May 05, 2006
85 HIGH ST, BUFFALO, NY 14203(716) 857-8616(716) 250-5945 Get Directions Write a Review

NPPES record last updated: April 14, 2008. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Matthew J O Brien Md NPPES

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

DR. MATTHEW J O BRIEN MD (NPI 1972551430) is an individual internal medicine provider in Buffalo, New York, licensed in New York (141215-1) and active in the NPI registry since May 2006.

NPPES Registry Identity

NPI1972551430
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. MATTHEW J O BRIENCredential: MD
Location Address85 HIGH STBuffalo, NY 14203-1149
Mailing Address6255 Sheridan Dr, Suite 304Williamsville, NY 14221-4836 · (716) 857-8666 · Fax (716) 857-8944
Phone(716) 857-8616
Fax(716) 250-5945
Sole ProprietorNo
Enumeration DateMay 5, 2006
Last NPPES UpdateApril 14, 2008
✔ NPI 1972551430 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in NY · 141215-1
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.
85 HIGH ST, Buffalo, NY 14203
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Other Identifiers 7

Other000508257001NY · Health Now
Other141215-4WNY · Workers Compensation
Medicare PINV52744NY
Medicare UPINB36141NY
Other0403994NY · Iha
Other00010129001NY · Univera
Medicaid00644546NY

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.

ERIN B MIDDLER P.A.
Physician Assistant
85 HIGH ST
BUFFALO, NY 14203
Erie County (716) 862-1969
AKHIL MOGALAPALLI
Internal Medicine
85 HIGH ST
BUFFALO, NY 14203
Erie County (716) 630-1000
DR. ALEC G MILLER MD
Internal Medicine
85 HIGH ST
BUFFALO, NY 14203
Erie County (716) 630-1000
BETHANY MCCLINSEY PA
Physician Assistant (Medical)
85 HIGH ST
BUFFALO, NY 14203
Erie County (716) 857-8607
RACHEL ELIZABETH HORVATH PA-C
Physician Assistant
85 HIGH ST
BUFFALO, NY 14203
Erie County (716) 630-1000
DR. JORDAN CINQUINO D.O
Internal Medicine
85 HIGH ST
BUFFALO, NY 14203
Erie County (716) 630-1000
DR. JEFFREY JOHN LACH DO
Hospitalist
85 HIGH ST
BUFFALO, NY 14203
Erie County (716) 630-1000
MR. VICTOR LEE SANDERS MD
Hospitalist
85 HIGH ST
BUFFALO, NY 14203
Erie County (716) 630-1000

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 Matthew O Brien's NPI number?

The NPI number for Matthew O Brien is 1972551430. It was assigned to this individual provider in the NPPES registry on May 5, 2006.

Where is Matthew O Brien located?

Matthew O Brien practices at 85 High St, Buffalo, NY 14203. The listed phone number is (716) 857-8616.

What is Matthew O Brien'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 Matthew O Brien was last updated on April 14, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years 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.