John S. Purdue, OD
Optometrist · Onalaska, WI
John S. Purdue, OD is an optometrist with a practice address in Onalaska, Wisconsin, and NPI 1467456830, issued on Jun 13, 2005. Check the license (Wisconsin 1826, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John S. Purdue
- Credential
- OD
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 1826 WI
Self-reported in NPPES; status is on the state search - Practice location
- 3111 Gundersen Drive, Onalaska, WI 54650
- Phone
- (608) 796-8630
- Enumerated
- Jun 13, 2005
- Record last updated
- Apr 24, 2015 (not updated in 11 years: call before relying on the address or phone)
- Medicaid ID
- 38517500 WI
- Entity
- Type 1 · individual
8 nearest optometrist records → All 1,161 in Wisconsin → Look up another NPI →
Also registered at 3111 Gundersen Drive
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Whitney Jandl, ATCAthletic Trainer1578981486
- Joseph La Mere, ATCAthletic Trainer1851385199
- Stephen Maden, PTPhysical Therapist1174527790
- Rajiv Naik, MDPediatrics Physician1902808215
- Sarah Naik, MDInternal Medicine Physician1891797106
- Ellen Ott, PNPPediatric Nurse Practitioner1710981154
Verify John S. Purdue in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 1826Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.2 times the Medicare Part D claims of the average optometrist in 2024
898 Medicare Part D claims for 178 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 36% of claims.
Most prescribed
- Latanoprost618 claims
- Timolol Maleate82 claims
- Ofloxacin31 claims
- Prednisolone Acetate31 claims
- Travoprost21 claims
- Brimonidine Tartrate19 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 S. Purdue among 1,161 optometrist records in Wisconsin
John S. Purdue, OD is one of 1,161 optometrist records with a practice address in Wisconsin. 74% 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, 87% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 65% of these records are
- Record last updated2015 · 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 Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Optometrist providers in Wisconsin
There are 1,161 optometrist records in Wisconsin.
All 1,161 in Wisconsin → Every provider in Onalaska → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Sarah Clements, O.D.Onalaska, WI 546501245515543
- Stephanie Laliberte-Lorenz, O.D.Onalaska, WI 546501275982407
- Andrew Palm, O.D.Onalaska, WI 546501477616431
- Robert RuprechtOnalaska, WI 546501679668867
- Douglas Wesely, ODOnalaska, WI 546501124018635
- Dean Wetzel, ODOnalaska, WI 546501053301598
- Misty Watters, O.D.Sparta, WI 546561720286784
- Nancy Wetzel, ODSparta, WI 546561922099050
Common questions
What is John S. Purdue, OD's NPI number?
John S. Purdue, OD's National Provider Identifier (NPI) is 1467456830, issued on Jun 13, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John S. Purdue, OD located?
The NPPES record lists a practice address at 3111 Gundersen Drive, Onalaska, WI, 54650. Phone: (608) 796-8630. Providers update this record themselves, so call before visiting.
How can I verify John S. Purdue, OD's license?
NPPES lists Wisconsin license number 1826, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.
How much does John S. Purdue, OD prescribe under Medicare Part D?
In 2024, John S. Purdue, OD had 898 Medicare Part D claims for 178 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.