Gregg A. Bleeker, O.D.
Optometrist · Mitchell, SD
Gregg A. Bleeker, O.D. is an optometrist with a practice address in Mitchell, South Dakota, and NPI 1942271382, issued on Feb 1, 2006. Check the license (South Dakota 141, as entered in NPPES) with the South Dakota board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gregg A. Bleeker
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 141 SD
Self-reported in NPPES; status is on the state search - Practice location
- 305 N Sanborn Blvd, Mitchell, SD 57301
- Phone
- (605) 996-2537
- Enumerated
- Feb 1, 2006
- Record last updated
- Nov 10, 2022
- Fax
- (605) 996-0500
- Medicaid IDs
- 9201870 SD
9201872 SD - Entity
- Type 1 · individual
8 nearest optometrist records → All 245 in South Dakota → Look up another NPI →
Also registered at 305 N Sanborn Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Deborah Bessler, O.D.Optometrist1568653426
- Ray Birkenkamp, M.D.Ophthalmology Physician1174594741
- Glen Nydam, O.D.Optometrist1003887688
- Nicholas Wenande, O.D.Optometrist1932576410
Verify Gregg A. Bleeker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich South Dakota board licenses this profession
Search for license 141Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
31% fewer Medicare Part D claims than the average optometrist in 2024
190 Medicare Part D claims for 34 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 25% of claims.
Most prescribed
- Latanoprost88 claims
- Timolol Maleate48 claims
- Restasis20 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 97.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $21.87
1 payment: food and beverage; the largest payer was Abbvie 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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Gregg A. Bleeker among 245 optometrist records in South Dakota
Gregg A. Bleeker, 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 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 50% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 75% of these records are
- Record last updated2022 · 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).
12 optometrist records list a practice address in Mitchell
They are 12 of the 359 NPPES records with a practice address in Mitchell, and 245 optometrist records in South Dakota.
All 245 in South Dakota → Every provider in Mitchell → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Phillip Becker, ODMitchell, SD 573011407344559
- Deborah Bessler, O.D.Mitchell, SD 573011568653426
- Grace Grabenstein, ODMitchell, SD 573011932087343
- Sheila Grieve, O.D.Mitchell, SD 573011427206309
- Nancy Hetland, O.D.Mitchell, SD 573011659460889
- Jeff Krall, O.D.Mitchell, SD 573011083741839
- James Krall, ODMitchell, SD 573011376433953
- Keri Nebelsick, O.D.Mitchell, SD 573011477840478
Common questions
What is Gregg A. Bleeker, O.D.'s NPI number?
Gregg A. Bleeker, O.D.'s National Provider Identifier (NPI) is 1942271382, issued on Feb 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregg A. Bleeker, O.D. located?
The NPPES record lists a practice address at 305 N Sanborn Blvd, Mitchell, SD, 57301. Phone: (605) 996-2537. Providers update this record themselves, so call before visiting.
How can I verify Gregg A. Bleeker, O.D.'s license?
NPPES lists South Dakota license number 141, as entered by the provider. Search the South Dakota board that licenses this profession; the NPPES record confirms identity only.
How much does Gregg A. Bleeker, O.D. prescribe under Medicare Part D?
In 2024, Gregg A. Bleeker, O.D. had 190 Medicare Part D claims for 34 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions only.
What is Gregg A. Bleeker, O.D.'s MIPS final score?
The 2023 MIPS final score is 97.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.