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Optometrists in Sioux City, IA

Browse 22 Optometrist providers listed in NPPES with a practice address in Sioux City, Iowa.

22 Healthcare Providers

How Sioux City compares with the U.S.

Sioux City has 26 Optometrists per 100,000 residents, about 1.4 times the U.S. rate of 19.

That is 22 active Optometrists with a practice address in Sioux City, for a population of 86,101.

The Iowa 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.

93% of Optometrists in Sioux City listed in the CMS Medicare file (13 of 14) accept Medicare assignment. That is similar to the Iowa share of 94%.

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 14 Optometrists in Sioux City 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 Sioux City, IA

Source: CMS PECOS
PECOS Enrolled Specialists 15 In Sioux City, IA
Part B Lab & Imaging Eligible 16 Diagnostic Referrals
DME Ordering Eligible 16 Durable Medical Equipment
Home Health Agency Referrals 16 HHA Ordering Eligible
Showing 1โ€“20 of 22 providers
With recent CMS data first, then Aโ€“Z

Dr. Scott R. Beecher , OD

Optometrist

Active NPI Status Accepts Medicare Assignment
4600 Singing Hills Blvd, Sioux City, IA 511069702
Phone: 7122714600
NPI Identifier 1841282050
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Active NPI Status Accepts Medicare Assignment
3539 Southern Hills Dr, Sioux City, IA 511064750
Phone: 7122762323
NPI Identifier 1477664902
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Active NPI Status Accepts Medicare Assignment
5404 Morningside Ave, Sioux City, IA 511063136
Phone: 7122742020
NPI Identifier 1811997802
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Active NPI Status Accepts Medicare Assignment
5001 Sergeant Rd Ste 45, Sioux City, IA 511064777
Phone: 7122244600
NPI Identifier 1407415599
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Dr. Christopher S Diehl , OD

Optometrist

Active NPI Status Accepts Medicare Assignment
4405 Hamilton Blvd, Sioux City, IA 511041140
Phone: 7122393937
NPI Identifier 1053607515
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Dr. Penelope Ann Haeker , OD

Optometrist

Active NPI Status
5001 Sergeant Rd, Suite 45, Sioux City, IA 511064775
Phone: 7122244600
NPI Identifier 1326040361
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Active NPI Status Accepts Medicare Assignment
523 4th St, Sioux City, IA 511011601
Phone: 7122243937
NPI Identifier 1043361843
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Active NPI Status Accepts Medicare Assignment
1909 Hamilton Blvd, Sioux City, IA 511044148
Phone: 7122524333
NPI Identifier 1992436489
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Dr. John D Kiernan , OD

Optometrist

Active NPI Status
1214 Pierce St, Sioux City, IA 511051417
Phone: 7122524406
NPI Identifier 1326046152
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Dr. Angela Marie Kolbo , OD

Optometrist

Active NPI Status Accepts Medicare Assignment
4600 Singing Hills Blvd, Sioux City, IA 511069702
Phone: 7122714600
NPI Identifier 1053666800
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Dr. David James Korver , OD

Optometrist

Active NPI Status
3025 Hamilton Blvd, Sioux City, IA 511042407
Phone: 7122555869
NPI Identifier 1962453621
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Dr. Brittany J Krause , OD

Optometrist

Active NPI Status Accepts Medicare Assignment
3025 Hamilton Blvd, Sioux City, IA 511042407
Phone: 7122555869
NPI Identifier 1801148143
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Active NPI Status
5001 Sergeant Rd Ste 35, Mijangos Optometry Inc, Sioux City, IA 511064777
Phone: 7122244600
NPI Identifier 1497990584
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Active NPI Status
2513 Hamilton Blvd, Sioux City, IA 511044045
Phone: 7122520933
NPI Identifier 1245480540
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Dr. Ryan Rudloff , OD

Optometrist

Active NPI Status Accepts Medicare Assignment
431 Pierce St, Sioux City, IA 51101
Phone: 4027703158
NPI Identifier 1114419009
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Dr. Dennis Roy Vannatta , OD

Optometrist

Active NPI Status Accepts Medicare Assignment
4600 Singing Hills Blvd, Sioux City, IA 511069702
Phone: 7122714600
NPI Identifier 1144212358
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Dr. Cal Edward Wiese , OD

Optometrist

Active NPI Status Accepts Medicare Assignment
1909 Hamilton Blvd, Sioux City, IA 511044148
Phone: 7122524333
NPI Identifier 1356072508
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Dr. Lisa Kay Calvert , OD

Optometrist

Active NPI Status
5001 Sergeant Rd, Ste 45,, Sioux City, IA 511064774
Phone: 4028510014
NPI Identifier 1740348911
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Dr. Rachel Korver , OD

Optometrist

Active NPI Status Accepts Medicare Assignment
2927 Hamilton Blvd, Sioux City, IA 511042405
Phone: 7122555869
NPI Identifier 1235023409
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Active NPI Status
2513 Hamilton Blvd, Sioux City, IA 511044045
Phone: 7122520933
NPI Identifier 1053390328
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Frequently Asked Questions about Optometrist in Sioux City

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 Iowa 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.