Charles E. Simpson, D.O, MS
Occupational Medicine Physician · Marinette, WI
Charles E. Simpson, D.O, MS is an occupational medicine physician with a practice address in Marinette, Wisconsin, and NPI 1770603557, issued on Mar 29, 2007. Check the license (Wisconsin 42908-021, as entered in NPPES) on the Wisconsin Medical Examining Board; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Charles E. Simpson
- Credential
- D.O, MS
- Primary taxonomy
- Occupational Medicine Physician 2083X0100X
- License number
- 42908-021 WI
Self-reported in NPPES; status is on the state search - Practice location
- 3100 Shore Dr, Marinette, WI 54143
- Phone
- (715) 735-4200
- Enumerated
- Mar 29, 2007
- Record last updated
- May 9, 2016 (not updated in 10 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest occupational medicine physician records → All 71 in Wisconsin → Look up another NPI →
Also registered at 3100 Shore Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Charles E. Simpson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 42908-021Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Charles E. Simpson among 71 occupational medicine physician records in Wisconsin
Charles E. Simpson, D.O, MS is one of 71 occupational medicine physician records with a practice address in Wisconsin. 31% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2007, is newer than 45% of them.
- NPI issued2007 · 45% of these records are older, 30% newer
- In a Medicare fileNo · 31% of these records are
- In the CMS Doctors and Clinicians fileNo · 18% of these records are
- Record last updated2016 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2083X0100X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Occupational Medicine Physician providers in Wisconsin
There are 71 occupational medicine physician records in Wisconsin. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 71 in Wisconsin → Every provider in Marinette → Occupational Medicine Physician nationwide →
The 8 occupational medicine physician records with the nearest ZIP codes
- Brian KonowalchukManitowoc, WI 542201104939453
- Dennis Phillips, DOManitowoc, WI 542201710011291
- Sean Flood, M.D.Hudson, WI 540161679536825
- Karen Besiada Hansen, OTRGreen Bay, WI 543041528235082
- Trevor CooperGreen Bay, WI 543111881344737
- Trevor Pugh, DOGreen Bay, WI 543111184165474
- Mark Ringwelski, DOGreen Bay, WI 543111962487165
- Pierce Sherrill, DOGreen Bay, WI 543111851408058
Common questions
What is Charles E. Simpson, D.O, MS's NPI number?
Charles E. Simpson, D.O, MS's National Provider Identifier (NPI) is 1770603557, issued on Mar 29, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Charles E. Simpson, D.O, MS located?
The NPPES record lists a practice address at 3100 Shore Dr, Marinette, WI, 54143. Phone: (715) 735-4200. Providers update this record themselves, so call before visiting.
How can I verify Charles E. Simpson, D.O, MS's license?
NPPES lists Wisconsin license number 42908-021, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.