Nicholas C. Barnes, DO
Internal Medicine Physician · Sheboygan, WI
Nicholas C. Barnes, DO is an internal medicine physician with a practice address in Sheboygan, Wisconsin, and NPI 1578531976, issued on Mar 10, 2006. Check the license (Wisconsin 49098021, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Nicholas C. Barnes
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 49098021 WI
Self-reported in NPPES; status is on the state search - Practice location
- 2920 Superior Ave, Sheboygan, WI 53081
- Phone
- (920) 453-5412
- Enumerated
- Mar 10, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (920) 803-2990
- Medicaid ID
- 43524700 WI
- Medicare enrollment
- Enrolled (PECOS I20050906000245); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,078 in Wisconsin → Look up another NPI →
Also registered at 2920 Superior Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jenny Brault, MDPediatrics Physician1801847074
- Kristen Brazzale, APNPNurse Practitioner1851321483
- Theresa Brosnan Schuler, NPNurse Practitioner1780635151
- Jacqueline Caelwarts, PA-CSurgical Physician Assistant1235622523
- Rachael Falle, NPAdult Health Nurse Practitioner1174889323
Verify Nicholas C. Barnes in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 49098021Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
15% more Medicare Part D claims than the average internal medicine physician in 2024
3,642 Medicare Part D claims for 448 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 30 claims were for opioids.
Most prescribed
- Atorvastatin Calcium266 claims
- Furosemide206 claims
- Levothyroxine Sodium173 claims
- Lisinopril124 claims
- Amlodipine Besylate103 claims
- Metoprolol Succinate102 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.
Bills Medicare through one group practice
- Sheboygan Physicians Group S.C.Sheboygan, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nicholas C. Barnes among 2,078 internal medicine physician records in Wisconsin
Nicholas C. Barnes, DO is one of 2,078 internal medicine physician records with a practice address in Wisconsin. 70% 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 9% of them.
- NPI issued2006 · 9% of these records are older, 46% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2002 · median 2002 among the 1,098 with a school on file
- Record last updated2026 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
22 internal medicine physician records list a practice address in Sheboygan
They are 22 of the 1,385 NPPES records with a practice address in Sheboygan, and 2,078 internal medicine physician records in Wisconsin.
All 2,078 in Wisconsin → Every provider in Sheboygan → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Robert Helminiak, MDSheboygan, WI 530811225146996
- Mark Hendricks, MDSheboygan, WI 530811194768127
- Suzanne Herold, MDSheboygan, WI 530811194793273
- Michael Johnson, MDSheboygan, WI 530811689642845
- Vytas Kerpe, MDSheboygan, WI 530811336109685
- James Kuplic, MDSheboygan, WI 530811598733909
- Mansoor Mirza, MDSheboygan, WI 530811508974502
- Jonathan Moulton, MDSheboygan, WI 530811851408264
Common questions
What is Nicholas C. Barnes, DO's NPI number?
Nicholas C. Barnes, DO's National Provider Identifier (NPI) is 1578531976, issued on Mar 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Nicholas C. Barnes, DO located?
The NPPES record lists a practice address at 2920 Superior Ave, Sheboygan, WI, 53081. Phone: (920) 453-5412. Providers update this record themselves, so call before visiting.
How can I verify Nicholas C. Barnes, DO's license?
NPPES lists Wisconsin license number 49098021, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Nicholas C. Barnes, DO prescribe under Medicare Part D?
In 2024, Nicholas C. Barnes, DO had 3,642 Medicare Part D claims for 448 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.