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Optometrists in Warren, OH

Browse 12 Optometrist providers listed in NPPES with a practice address in Warren, Ohio.

12 Healthcare Providers

How Warren compares with the U.S.

Warren has 31 Optometrists per 100,000 residents, about 1.7 times the U.S. rate of 19.

That is 12 active Optometrists with a practice address in Warren, for a population of 38,912.

The Ohio rate is 21 per 100,000 residents.

What these numbers mean

Clinicians per 100,000 residents compares places of different sizes. We count active clinicians who list a practice address in the area in the federal NPI registry (NPPES) and divide by the number of people who live there, according to the U.S. Census Bureau. The U.S. rate is the same calculation for the whole country.

A higher number does not mean it is easier to get an appointment, that wait times are shorter, or that care is better. It also does not show how many clinicians are accepting new patients or which insurance plans they take. A lower number does not by itself mean there is a shortage.

City counts use the city name in each clinician's practice address. That postal city can cover a larger or smaller area than the city limits the Census Bureau uses for population, and many clinicians list only one address even if they work in several places. Cities with hospitals or large medical centers often list more specialists than the number of residents alone would suggest, because patients also come from nearby areas.

100% of Optometrists in Warren listed in the CMS Medicare file (10 of 10) accept Medicare assignment. That is higher than the Ohio share of 90%.

What is Medicare assignment?

A clinician who accepts Medicare assignment agrees to take the Medicare-approved amount as full payment for services that Original Medicare covers. You usually still pay your deductible and coinsurance. This comes from the CMS Doctors and Clinicians file and applies to Original Medicare only. Medicare Advantage plans have their own provider networks. It does not show whether a clinician is taking new patients.

Some clinicians are listed as "may accept assignment," which means they can decide case by case. Clinicians without an assignment flag, or who are not in the CMS file, are not counted as accepting assignment. That does not mean they refuse Medicare. Ask the office before your visit.

None of the 10 Optometrists in Warren listed in the CMS Medicare file have a CMS telehealth indicator. Some may still offer telehealth; ask the office.

About the telehealth indicator

The telehealth indicator comes from CMS. It marks clinicians whose recent paid Medicare claims include services delivered by telehealth. It means a clinician has provided some services by telehealth, not that every visit can be done online. A clinician without the indicator may still offer telehealth, for example to patients who are not on Medicare. Ask the office which visits can be done by video or phone.

These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.

Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com ยท Methodology

Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026. Medicare assignment and telehealth indicators: CMS Doctors and Clinicians National Downloadable File. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).

Optometrist Medicare (PECOS) Enrollment & Ordering Eligibility

Medicare enrollment and order/referring eligibility listed by CMS for Optometrist practitioners in Warren, OH

Source: CMS PECOS
PECOS Enrolled Specialists 12 In Warren, OH
Part B Lab & Imaging Eligible 12 Diagnostic Referrals
DME Ordering Eligible 12 Durable Medical Equipment
Home Health Agency Referrals 12 HHA Ordering Eligible
Showing 1โ€“12 of 12 providers
With recent CMS data first, then Aโ€“Z

Dr. Thomas M Abruzzi , OD

Optometrist

Active NPI Status
1606 E Market St, Warren, OH 444836613
Phone: 3303924191
NPI Identifier 1588669790
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Dr. John W Barnhart , OD

Optometrist

Active NPI Status Accepts Medicare Assignment
4620 Mahoning Ave Nw, Warren, OH 444831419
Phone: 3308479093
NPI Identifier 1407975113
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Active NPI Status Accepts Medicare Assignment
2660 E Market St, Warren, OH 444836204
Phone: 3303934000
NPI Identifier 1053939777
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Dr. Frank A D'apolito , OD

Optometrist

Active NPI Status Accepts Medicare Assignment
3921 E Market St, Building Iii Second Floor, Warren, OH 444844711
Phone: 3308563300
NPI Identifier 1801898606
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Dr. Carla Darak-Bolino , OD

Optometrist

Active NPI Status Accepts Medicare Assignment
3921 E Market St, Building Iii Second Floor, Warren, OH 444844711
Phone: 3308563300
NPI Identifier 1467454405
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Dr. Chad James Douglas , OD

Optometrist

Active NPI Status Accepts Medicare Assignment
302 Niles Cortland Rd Ne, Warren, OH 444841940
Phone: 3303942020
NPI Identifier 1609858240
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Dr. Diana Marie Douglas , OD

Optometrist

Active NPI Status Accepts Medicare Assignment
302 Niles Cortland Rd Ne, Warren, OH 444841940
Phone: 3303942020
NPI Identifier 1144452459
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Active NPI Status Accepts Medicare Assignment
4060 N River Rd Ne, Warren, OH 444841039
Phone: 3307467691
NPI Identifier 1932132818
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Active NPI Status Accepts Medicare Assignment
4060 N River Rd Ne, Warren, OH 444841039
Phone: 3307467691
NPI Identifier 1538475249
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Active NPI Status Accepts Medicare Assignment
4060 N River Rd Ne, Warren, OH 444841039
Phone: 3307467691
NPI Identifier 1114619137
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Dr. Robert C Fleischer , OD

Optometrist

Active NPI Status
1515 East Market St, Warren, OH 444836641
Phone: 3303948862
NPI Identifier 1245333871
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Dr. Annunziato Garofalo , OD

Optometrist

Active NPI Status Accepts Medicare Assignment
8216 E Market St, Warren, OH 444842337
Phone: 3308564089
NPI Identifier 1487776324
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Frequently Asked Questions about Optometrist in Warren

How do I check a Optometrist practitioner's license?

Each practitioner profile shows the NUCC taxonomy code and any state license number the practitioner reported to NPPES, plus a link to the Ohio licensing board lookup. NPPES entries are self-reported; current license status is published only by the state board.

Why is a practitioner missing from this list?

This list shows NPI records that are active in NPPES. A deactivated NPI keeps its profile with the deactivation date and practice history; find it with the site search by name or NPI number.