Mark R. Winckler, OD
Optometrist · Pine Ridge, SD
Mark R. Winckler, OD is an optometrist with a practice address in Pine Ridge, South Dakota, and NPI 1538268388, issued on Sep 21, 2006. Check the license (South Dakota 631, as entered in NPPES) with the South Dakota board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mark R. Winckler
- Credential
- OD
- Primary taxonomy
- Optometrist 152W00000X
- License numbers
- 631 SD
1269 NE
Self-reported in NPPES; status is on the state search - Practice location
- 207 E Main St Ste 1, Pine Ridge, SD 57770
- Phone
- (605) 867-2772
- Enumerated
- Sep 21, 2006
- Record last updated
- Jan 3, 2024
- Medicaid IDs
- 9203683 SD
9203680 SD
9203682 SD - Medicare enrollment
- Enrolled (PECOS I20070705000162); accepts Medicare assignment
- Medical or professional school
- Illinois College Of Optometry At Chicago, 2006
- Entity
- Type 1 · individual
8 nearest optometrist records → All 245 in South Dakota → Look up another NPI →
Verify Mark R. Winckler 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 631Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average optometrist in 2024
35 Medicare Part D claims for 13 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 46% of 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.
Mark R. Winckler among 245 optometrist records in South Dakota
Mark R. Winckler, OD 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 fileYes · 75% of these records are
- Graduated2006 · median 2006 among the 183 with a school on file
- Record last updated2024 · 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).
Optometrist providers in South Dakota
There are 245 optometrist records in South Dakota.
All 245 in South Dakota → Every provider in Pine Ridge → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Eryn Caudill, ODSpearfish, SD 577831225488950
- Jessica Czerny, O.D.Spearfish, SD 577831457639080
- Robert Goodrich, ODSpearfish, SD 577831730133422
- Kathryn Haivala, ODSpearfish, SD 577831477564771
- A HaugeSpearfish, SD 577831982671145
- Tammy Hersch, O.D.Spearfish, SD 577831609855980
- Scott KennedySpearfish, SD 577831871561795
- Elaine Petry, O.D.Spearfish, SD 577831083296669
Common questions
What is Mark R. Winckler, OD's NPI number?
Mark R. Winckler, OD's National Provider Identifier (NPI) is 1538268388, issued on Sep 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark R. Winckler, OD located?
The NPPES record lists a practice address at 207 E Main St Ste 1, Pine Ridge, SD, 57770. Phone: (605) 867-2772. Providers update this record themselves, so call before visiting.
How can I verify Mark R. Winckler, OD's license?
NPPES lists South Dakota license number 631, as entered by the provider. Search the South Dakota board that licenses this profession; the NPPES record confirms identity only.
How much does Mark R. Winckler, OD prescribe under Medicare Part D?
In 2024, Mark R. Winckler, OD had 35 Medicare Part D claims for 13 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.
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.