JOHN W BARNHART OD INC.
NPI 1104851278
Optometrist in Warren, OH

Q: What is John W Barnhart Od Inc.'s NPI number?

The NPI number for John W Barnhart Od Inc. is 1104851278. It was assigned to this organization in the NPPES registry on July 11, 2006.

Q: What is John W Barnhart Od Inc.'s specialty?

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

Active since July 11, 2006

4620 MAHONING AVE, WARREN, OH 44483(330) 847-9093(330) 847-2225 Get Directions Write a Review

NPPES record last updated: October 7, 2008. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About John W Barnhart Od Inc. NPPES

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

JOHN W BARNHART OD INC. (NPI 1104851278) is a healthcare organization registered as an optometrist in Warren, Ohio and active in the NPI registry since July 2006. The organization lists John W Barnhart, President, as its authorized official.

NPPES Registry Identity

NPI1104851278

Entity TypeOrganization

Primary Taxonomy152W00000X

Legal Business NameJOHN W BARNHART OD INC.

Location Address4620 MAHONING AVEWarren, OH 44483-1419

Mailing Address4620 Mahoning AveWarren, OH 44483-1419 · (330) 847-9093 · Fax (330) 847-2225

Phone(330) 847-9093

Fax(330) 847-2225

Organization SubpartNo

Authorized OfficialJohn W BarnhartPresident · (330) 847-9093

Enumeration DateJuly 11, 2006

Last NPPES UpdateOctober 7, 2008

✔ NPI 1104851278 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 OH · 4265

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.

4620 MAHONING AVE, Warren, OH 44483

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Other Identifiers 4

Medicaid0141868OH

Medicare PIN9326971

Medicare UPINU33773

Medicare NSC4835030001

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

John W Barnhart Od Inc. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to John W Barnhart Od Inc., which bills Medicare for the services this clinician delivers.

Clinician (1)

John Barnhart, O.D.

Optometry

NPI 1407975113

4620 MAHONING AVE NW
Warren, OH 44483

(330) 847-9093

✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 W Barnhart Od Inc.'s NPI number?

The NPI number for John W Barnhart Od Inc. is 1104851278. It was assigned to this organization in the NPPES registry on July 11, 2006.

Where is John W Barnhart Od Inc. located?

John W Barnhart Od Inc. is located at 4620 Mahoning Ave, Warren, OH 44483. The listed phone number is (330) 847-9093.

What is John W Barnhart Od Inc.'s specialty?

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

Is John W Barnhart Od Inc. enrolled in Medicare?

Yes. John W Barnhart Od Inc. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through John W Barnhart Od Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Optometry) reassigns their Medicare billing to John W Barnhart Od Inc.. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does John W Barnhart Od Inc. accept?

Health plans from Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas and BlueCross BlueShield of Tennessee and 1 other insurer list John W Barnhart Od Inc. as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for John W Barnhart Od Inc. was last updated on October 7, 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.