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

JOHNNY L DEFLONTY OD
NPI 1639162233
Optometrist in Saginaw, MI

Active since August 30, 2005
GREAT LAKES EYE INSTITUTE, 2393 SCHUST RD, SAGINAW, MI 48603(989) 793-2820(989) 793-9132 Get Directions Write a Review

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

About Johnny L Deflonty Od NPPES

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

JOHNNY L DEFLONTY OD (NPI 1639162233) is an individual optometrist in Saginaw, Michigan, licensed in Michigan (4901002489) and active in the NPI registry since August 2005.

NPPES Registry Identity

NPI1639162233
Entity TypeIndividualMale
Primary Taxonomy152W00000X
Provider Legal NameJOHNNY L DEFLONTYCredential: OD
Location AddressGREAT LAKES EYE INSTITUTE, 2393 SCHUST RDSaginaw, MI 48603
Mailing AddressGreat Lakes Eye Institute, 2393 Schust RdSaginaw, MI 48603 · (989) 793-2820 · Fax (989) 793-9132
Phone(989) 793-2820
Fax(989) 793-9132
Sole ProprietorNo
Enumeration DateAugust 30, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1639162233 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 MI · 4901002489
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.
GREAT LAKES EYE INSTITUTE, Saginaw, MI 48603
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Other Identifiers 2

Other4901002489MI · License #
Medicaid4618893MI

Other Providers at the Same Location NPPES

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

PATRICK J BELL OD
Optometrist
GREAT LAKES EYE INSTITUTE, 2393 SCHUST RD
SAGINAW, MI 48603
Saginaw County (989) 793-2820

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 Johnny Deflonty's NPI number?

The NPI number for Johnny Deflonty is 1639162233. It was assigned to this individual provider in the NPPES registry on August 30, 2005.

Where is Johnny Deflonty located?

Johnny Deflonty practices at Great Lakes Eye Institute 2393 Schust Rd, Saginaw, MI 48603. The listed phone number is (989) 793-2820.

What is Johnny Deflonty'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 Johnny Deflonty 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 35 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.