NPPES file of Aug 9, 2026

Gregory Allan Kouri, O.D.

Optometrist · Yankton, SD

Gregory Allan Kouri, O.D. is an optometrist with a practice address in Yankton, South Dakota, and NPI 1336142272, issued on May 24, 2005. Check the license (South Dakota 521, 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
1336142272
Name
Gregory Allan Kouri
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License numbers
521 SD
1065 NE
Self-reported in NPPES; status is on the state search
Practice location
415 W 3RD St, Yankton, SD 57078
Phone
(605) 665-9638
Enumerated
May 24, 2005
Record last updated
Nov 4, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(605) 665-0526
Medicaid IDs
36-3050195-07 NE
36-3050195-06 SD
9200084 SD
Medicare enrollment
Enrolled (PECOS I20060109000751); accepts Medicare assignment
Medical or professional school
Illinois College Of Optometry At Chicago, 1993
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest optometrist records → All 245 in South Dakota → Look up another NPI →

Also registered at 415 W 3RD St

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

  1. Karen Dickes, D.O.Ophthalmology Physician1487851754
  2. Paula Hicks, M.D.Ophthalmology Physician1407859341
  3. Patrick King, M.D.Ophthalmology Physician1487657334

Verify Gregory Allan Kouri 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 521    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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6.6 times the Medicare Part D claims of the average optometrist in 2024

1,835 Medicare Part D claims for 409 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D.

  1. Gregory Kouri1,835
  2. Specialty average277

Most prescribed

  1. Latanoprost840 claims
  2. Dorzolamide-Timolol159 claims
  3. Timolol Maleate141 claims
  4. Prednisolone Acetate79 claims
  5. Travoprost58 claims
  6. Acyclovir48 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.

Industry payments in 2024: $31.23

2 payments; by number, the most common kind was food and beverage; the largest payer was Bausch & Lomb Americas Inc. The 34,453 providers of this specialty with any payment received $769.99 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Gregory Kouri$31.23
  2. Specialty average$769.99

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Sacred Heart Health ServicesYankton, SD
  2. Willcockson Eye Associates PCNorfolk, NE

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Gregory Allan Kouri among 245 optometrist records in South Dakota

Gregory Allan Kouri, 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 88% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 75% of these records are
  • Graduated1993 · median 2006 among the 183 with a school on file
  • 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).

7 optometrist records list a practice address in Yankton

They are 7 of the 515 NPPES records with a practice address in Yankton, and 245 optometrist records in South Dakota.

All 245 in South Dakota → Every provider in Yankton → Optometrist nationwide →

The 8 optometrist records with the nearest ZIP codes

  1. Paul Anderson, ODYankton, SD 570781356364236
  2. Aaron FeserYankton, SD 570781497775308
  3. Alex Kneeland, ODYankton, SD 570781750958559
  4. Bowen Mollman, O.D.Yankton, SD 570781699791947
  5. Lucas Rockne, ODYankton, SD 570781861184830
  6. Mark Steckler, O.D.Yankton, SD 570781245292499
  7. Kevin Brown, O.D.Vermillion, SD 570691619916871
  8. Amy Dejong, O.D.Vermillion, SD 570691013997147

Common questions

What is Gregory Allan Kouri, O.D.'s NPI number?

Gregory Allan Kouri, O.D.'s National Provider Identifier (NPI) is 1336142272, issued on May 24, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Gregory Allan Kouri, O.D. located?

The NPPES record lists a practice address at 415 W 3RD St, Yankton, SD, 57078. Phone: (605) 665-9638. Providers update this record themselves, so call before visiting.

How can I verify Gregory Allan Kouri, O.D.'s license?

NPPES lists South Dakota license number 521, as entered by the provider. Search the South Dakota board that licenses this profession; the NPPES record confirms identity only.

How much does Gregory Allan Kouri, O.D. prescribe under Medicare Part D?

In 2024, Gregory Allan Kouri, O.D. had 1,835 Medicare Part D claims for 409 beneficiaries; 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.