NPPES file of Aug 9, 2026

Tammi L. Sawallish, OD

Optometrist · Berlin, WI

Tammi L. Sawallish, OD is an optometrist with a practice address in Berlin, Wisconsin, and NPI 1225063514, issued on Jul 12, 2006. Check the license (Wisconsin 3047-035, as entered in NPPES) with the Wisconsin 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1225063514
Name
Tammi L. Sawallish
Credential
OD
Primary taxonomy
Optometrist 152W00000X
License number
3047-035 WI
Self-reported in NPPES; status is on the state search
Practice location
269 Memorial Dr Ste 103, Berlin, WI 54923
Phone
(920) 361-1696
Enumerated
Jul 12, 2006
Record last updated
Sep 1, 2023
Fax
(920) 361-1247
Medicaid ID
38630100 WI
Medicare enrollment
Enrolled (PECOS I20060814000018); accepts Medicare assignment
Medical or professional school
Illinois College Of Optometry At Chicago, 2006
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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Verify Tammi L. Sawallish in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
    Search for license 3047-035
    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
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18% more Medicare Part D claims than the average optometrist in 2024

328 Medicare Part D claims for 93 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 45% of claims.

  1. Tammi Sawallish328
  2. Specialty average277

Most prescribed

  1. Latanoprost172 claims
  2. Cyclosporine44 claims
  3. Timolol Maleate26 claims
  4. Restasis17 claims
  5. Fluorometholone16 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 MIPS final score for 2023 (Medicare payment program): 99.5 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score96.7
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $47.65

3 payments; by number, the most common kind was food and beverage; the largest payer was Johnson & Johnson Vision Care, 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. Tammi Sawallish$47.65
  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 one group practice

  1. Berlin Family Eye Care SCBerlin, WI

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

Tammi L. Sawallish among 1,161 optometrist records in Wisconsin

Tammi L. Sawallish, 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 2006, is newer than 13% of them.

  • NPI issued2006 · 13% of these records are older, 50% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 65% of these records are
  • Graduated2006 · median 2008 among the 752 with a school on file
  • Record last updated2023 · 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).

3 optometrist records list a practice address in Berlin

They are 3 of the 132 NPPES records with a practice address in Berlin, and 1,161 optometrist records in Wisconsin.

The 8 optometrist records with the nearest ZIP codes

  1. Micheal Gerber, ODBerlin, WI 549231669523791
  2. David Johanknecht, ODBerlin, WI 549231114078243
  3. Christopher Lopez, ODClintonville, WI 549291922514447
  4. Brittany Beers, ODAppleton, WI 549151154980712
  5. Linda Dejmek, ODAppleton, WI 549151144286451
  6. Erin Drees, ODAppleton, WI 549151245849660
  7. Katie Abata, O.D.Appleton, WI 549141043646623
  8. Mindy Harrington, ODAppleton, WI 549141689231649

Common questions

What is Tammi L. Sawallish, OD's NPI number?

Tammi L. Sawallish, OD's National Provider Identifier (NPI) is 1225063514, issued on Jul 12, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Tammi L. Sawallish, OD located?

The NPPES record lists a practice address at 269 Memorial Dr Ste 103, Berlin, WI, 54923. Phone: (920) 361-1696. Providers update this record themselves, so call before visiting.

How can I verify Tammi L. Sawallish, OD's license?

NPPES lists Wisconsin license number 3047-035, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.

How much does Tammi L. Sawallish, OD prescribe under Medicare Part D?

In 2024, Tammi L. Sawallish, OD had 328 Medicare Part D claims for 93 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions only.

What is Tammi L. Sawallish, OD's MIPS final score?

The 2023 MIPS final score is 99.5 of 100. 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.