NPPES file of Aug 9, 2026

John Herbert Bannwarth, O.D.

Optometrist · Sioux Falls, SD

John Herbert Bannwarth, O.D. is an optometrist with a practice address in Sioux Falls, South Dakota, and NPI 1689824856, issued on Sep 24, 2008. Check the license (South Dakota 659, as entered in NPPES) with the South Dakota board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1689824856
Name
John Herbert Bannwarth
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
659 SD
Self-reported in NPPES; status is on the state search
Practice location
4501 E Arrowhead Pkwy, Sioux Falls, SD 57110
Phone
(605) 999-9451
Enumerated
Sep 24, 2008
Record last updated
Sep 24, 2008 (not updated in 18 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 4501 E Arrowhead Pkwy

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Thomas RiegerOptometrist1972554988

Verify John Herbert Bannwarth in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich South Dakota board licenses this profession
    Search for license 659
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the South Dakota license search

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42% fewer Medicare Part D claims than the average optometrist in 2024

162 Medicare Part D claims, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D.

  1. John Bannwarth162
  2. Specialty average277

Most prescribed

  1. Atorvastatin Calcium18 claims
  2. Mirtazapine18 claims
  3. Amlodipine Besylate13 claims
  4. Levothyroxine Sodium13 claims
  5. Pantoprazole Sodium13 claims
  6. Clopidogrel12 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

John Herbert Bannwarth among 245 optometrist records in South Dakota

John Herbert Bannwarth, O.D. is one of 245 optometrist records with a practice address in South Dakota. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 62% of them.

  • NPI issued2008 · 62% of these records are older, 35% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileNo · 75% of these records are
  • Record last updated2008 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a South Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

75 optometrist records list a practice address in Sioux Falls

They are 75 of the 6,563 NPPES records with a practice address in Sioux Falls, and 245 optometrist records in South Dakota.

The 8 optometrist records with the nearest ZIP codes

  1. Thomas RiegerSioux Falls, SD 571101972554988
  2. Gabrielle Anderson, ODSioux Falls, SD 571081366332249
  3. Eva Anderson, O.D.Sioux Falls, SD 571081558724054
  4. Verenice Castillo, ODSioux Falls, SD 571081801713870
  5. Alecia Diede, ODSioux Falls, SD 571081437804457
  6. Ashley Gentrup, O.D.Sioux Falls, SD 571081962835017
  7. Kayla Karpuk, ODSioux Falls, SD 571081033639851
  8. Allison Lewandowski, ODSioux Falls, SD 571081801713102

Common questions

What is John Herbert Bannwarth, O.D.'s NPI number?

John Herbert Bannwarth, O.D.'s National Provider Identifier (NPI) is 1689824856, issued on Sep 24, 2008. An NPI identifies a provider in billing; it is not a license.

Where is John Herbert Bannwarth, O.D. located?

The NPPES record lists a practice address at 4501 E Arrowhead Pkwy, Sioux Falls, SD, 57110. Phone: (605) 999-9451. Providers update this record themselves, so call before visiting.

How can I verify John Herbert Bannwarth, O.D.'s license?

NPPES lists South Dakota license number 659, as entered by the provider. Search the South Dakota board that licenses this profession; the NPPES record confirms identity only.

How much does John Herbert Bannwarth, O.D. prescribe under Medicare Part D?

In 2024, John Herbert Bannwarth, O.D. had 162 Medicare Part D claims; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.