Andrew W. Nahas, OD
Optometrist · Viroqua, WI
Andrew W. Nahas, OD is an optometrist with a practice address in Viroqua, Wisconsin, and NPI 1427052927, issued on Jun 13, 2005. Check the license (Wisconsin 2603, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Andrew W. Nahas
- Credential
- OD
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 2603 WI
Self-reported in NPPES; status is on the state search - Practice location
- 407 S Main St, Viroqua, WI 54665
- Phone
- (608) 637-8281
- Enumerated
- Jun 13, 2005
- Record last updated
- Feb 1, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicaid ID
- 38604700 WI
- Medicare enrollment
- Enrolled (PECOS I20060224000438); accepts Medicare assignment
- Medical or professional school
- Pennsylvania College Of Optometry, 1994
- Entity
- Type 1 · individual
8 nearest optometrist records → All 1,161 in Wisconsin → Look up another NPI →
Also registered at 407 S Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rachel Bassett, MDFamily Medicine Physician1649247222
- Kylie Berger, FNP, APNPFamily Nurse Practitioner1861874067
- Paul Bergquist, M.D.Family Medicine Physician1497798938
- Jenelle Boyer, OTR/L, CLTOccupational Therapist1124412499
- Kristine Brueggen, N.P.Nurse Practitioner1538107982
- Heather Chestelson, DPMPrimary Podiatric Medicine Podiatrist1710175997
Verify Andrew W. Nahas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 2603Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.7 times the Medicare Part D claims of the average optometrist in 2024
751 Medicare Part D claims for 203 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 38% of claims.
Most prescribed
- Latanoprost303 claims
- Dorzolamide-Timolol65 claims
- Timolol Maleate65 claims
- Cyclosporine42 claims
- Fluorometholone39 claims
- Neomycin-Polymyxin-Dexameth38 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: $160.36
3 payments; by number, the most common kind was food and beverage; the largest payer was Tarsus Pharmaceuticals, 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.
Bills Medicare through one group practice
- Gundersen Clinic LtdWaukon, IA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Andrew W. Nahas among 1,161 optometrist records in Wisconsin
Andrew W. Nahas, 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 fileYes · 65% of these records are
- Graduated1994 · median 2008 among the 752 with a school on file
- Record last updated2016 · 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 Viroqua → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Troy McKay, ODViroqua, WI 546651851344204
- Gerald Adams, ODWestby, WI 546671760479182
- Amy Atherton, O.D.Tomah, WI 546601386053429
- Thomas Boulden, ODTomah, WI 546601427052182
- Joyce Jordahl Nash, O.D.Tomah, WI 546601215973912
- Anjela Krome, O.D.Tomah, WI 546601598719726
- David Larsen, ODTomah, WI 546601417953308
- Joseph Lawrence, O.D.Tomah, WI 546601891102166
Common questions
What is Andrew W. Nahas, OD's NPI number?
Andrew W. Nahas, OD's National Provider Identifier (NPI) is 1427052927, issued on Jun 13, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Andrew W. Nahas, OD located?
The NPPES record lists a practice address at 407 S Main St, Viroqua, WI, 54665. Phone: (608) 637-8281. Providers update this record themselves, so call before visiting.
How can I verify Andrew W. Nahas, OD's license?
NPPES lists Wisconsin license number 2603, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.
How much does Andrew W. Nahas, OD prescribe under Medicare Part D?
In 2024, Andrew W. Nahas, OD had 751 Medicare Part D claims for 203 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.