1. Home
  2. Directory
  3. Indiana
  4. South Bend
  5. Optometrist
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

DONALD TREASE O.D.
NPI 1346287109
Optometrist in South Bend, IN

Active since June 01, 2006
4123 S MICHIGAN ST, SOUTH BEND, IN 46614(574) 291-8900(574) 299-8503 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Donald Trease O.d. NPPES

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

DONALD TREASE O.D. (NPI 1346287109) is an individual optometrist in South Bend, Indiana, licensed in Indiana (18001840) and active in the NPI registry since June 2006.

NPPES Registry Identity

NPI1346287109
Entity TypeIndividualMale
Primary Taxonomy152W00000X
Provider Legal NameDONALD TREASECredential: O.D.
Location Address4123 S MICHIGAN STSouth Bend, IN 46614-2545
Mailing Address4123 S Michigan StSouth Bend, IN 46614-2545 · (574) 291-8900 · Fax (574) 299-8503
Phone(574) 291-8900
Fax(574) 299-8503
Sole ProprietorNo
Enumeration DateJune 1, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1346287109 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometristEye and Vision Services Providers
Taxonomy Code152W00000X
License✔ Licensed in IN · 18001840
Definition
Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.
4123 S MICHIGAN ST, South Bend, IN 46614
Open in Google Maps ↗

Other Providers at the Same Location NPPES 5

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

CHRISTOPHER J. WOLF, OD, INC
Optometrist
4123 S MICHIGAN ST
SOUTH BEND, IN 46614
St. Joseph County (574) 291-8900
JAMES F LONGENECKER O.D.
Optometrist
4123 S MICHIGAN ST
SOUTH BEND, IN 46614
St. Joseph County (574) 291-8900
DR. CHRISTOPHER JOHN WOLF O.D.
Optometrist
4123 S MICHIGAN ST
SOUTH BEND, IN 46614
St. Joseph County (574) 291-8900
NORTHERN INDIANA OPTOMETRISTS, PC
Optometrist
4123 S MICHIGAN ST
SOUTH BEND, IN 46614
St. Joseph County (574) 291-9200
DR. LISA CAMMETT O.D.
Optometrist
4123 S MICHIGAN ST
SOUTH BEND, IN 46614
St. Joseph County (574) 291-8900

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 Donald Trease's NPI number?

The NPI number for Donald Trease is 1346287109. It was assigned to this individual provider in the NPPES registry on June 1, 2006.

Where is Donald Trease located?

Donald Trease practices at 4123 S Michigan St, South Bend, IN 46614. The listed phone number is (574) 291-8900.

What is Donald Trease's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

When was this NPI record last updated?

The NPPES record for Donald Trease 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 22 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.