NPPES file of Aug 9, 2026

Larry Lee Nillissen, DDS

Dentist · Birnamwood, WI

Larry Lee Nillissen, DDS is a dentist with a practice address in Birnamwood, Wisconsin, and NPI 1518121284, issued on Jul 11, 2008. Check the license (Wisconsin WI2723, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1518121284
Name
Larry Lee Nillissen
Credential
DDS
Primary taxonomy
Dentist 122300000X
License number
WI2723 WI
Self-reported in NPPES; status is on the state search
Practice location
409A Main St, Birnamwood, WI 54414
Phone
(715) 449-3345
Enumerated
Jul 11, 2008
Record last updated
Jul 11, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(715) 449-3272
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Larry Lee Nillissen 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 WI2723
    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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81% fewer Medicare Part D claims than the average dentist in 2024

16 Medicare Part D claims for 14 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Larry Nillissen16
  2. Specialty average86

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.

Larry Lee Nillissen among 1,750 dentist records in Wisconsin

Larry Lee Nillissen, DDS is one of 1,750 dentist records with a practice address in Wisconsin. 60% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 38% of them.

  • NPI issued2008 · 38% of these records are older, 55% newer
  • In a Medicare fileYes · 60% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2008 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1 dentist record lists a practice address in Birnamwood

They are 1 of the 12 NPPES records with a practice address in Birnamwood, and 1,750 dentist records in Wisconsin.

The 8 dentist records with the nearest ZIP codes

  1. Paul Favela, DDSBowler, WI 544161013398387
  2. Thomas Treweek, DDSAthens, WI 544111730397209
  3. Steven Felde, DDSAntigo, WI 544091598973661
  4. Peter Freyer, DDSAntigo, WI 544091366531931
  5. Robert Kanke, D.D.S.Antigo, WI 544091891810198
  6. Lisa Krebs, D.D.S.Antigo, WI 544091447334347
  7. Stephanie Reimer, D.D.SAntigo, WI 544091902190309
  8. Timothy O Brien, DDSAntigo, WI 544081659488849

Common questions

What is Larry Lee Nillissen, DDS's NPI number?

Larry Lee Nillissen, DDS's National Provider Identifier (NPI) is 1518121284, issued on Jul 11, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Larry Lee Nillissen, DDS located?

The NPPES record lists a practice address at 409A Main St, Birnamwood, WI, 54414. Phone: (715) 449-3345. Providers update this record themselves, so call before visiting.

How can I verify Larry Lee Nillissen, DDS's license?

NPPES lists Wisconsin license number WI2723, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.

How much does Larry Lee Nillissen, DDS prescribe under Medicare Part D?

In 2024, Larry Lee Nillissen, DDS had 16 Medicare Part D claims for 14 beneficiaries; the average among dentist prescribers was 86. 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.