NPPES file of Aug 9, 2026

Charles Edward Allen, M.D.

Family Medicine Physician · Oconomowoc, WI

Charles Edward Allen, M.D. is a family medicine physician with a practice address in Oconomowoc, Wisconsin, and NPI 1871804336, issued on Jun 29, 2010. Check the license (Wisconsin 61157-020, as entered in NPPES) on the Wisconsin Medical Examining Board; 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
1871804336
Name
Charles Edward Allen
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
61157-020 WI
Self-reported in NPPES; status is on the state search
Practice location
1185 Corporate Center Dr, Oconomowoc, WI 53066
Phone
(262) 928-8400
Enumerated
Jun 29, 2010
Record last updated
Mar 4, 2016 (not updated in 10 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20131115000984); accepts Medicare assignment
Medical or professional school
University Of Louisville School Of Medicine, 2009
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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8 nearest family medicine physician records → All 3,765 in Wisconsin → Look up another NPI →

Also registered at 1185 Corporate Center Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Katherine Brockway, NPFamily Nurse Practitioner1891500906
  2. Dan Cleary, MDInternal Medicine Physician1972615136
  3. Eric Conradson, M.D.Internal Medicine Physician1518976232
  4. Firas Ghanem, M.D.Cardiovascular Disease Physician1124008529
  5. John Gucciardi, M.D.Family Medicine Physician1760417430
  6. Brett Linzer, M.D.Internal Medicine Physician1083686653

Verify Charles Edward Allen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 61157-020    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
Open the Wisconsin license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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90% fewer Medicare Part D claims than the average family medicine physician in 2024

342 Medicare Part D claims for 290 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. Charles Allen342
  2. Specialty average3,544

Most prescribed

  1. Nitrofurantoin Mono-Macro67 claims
  2. Prednisone57 claims
  3. Amoxicillin-Clavulanate Potass37 claims
  4. Cephalexin26 claims
  5. Polymyxin B Sul-Trimethoprim20 claims
  6. Doxycycline Monohydrate18 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

  1. Prohealth Medical Group IncOconomowoc, WI

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

Charles Edward Allen among 3,765 family medicine physician records in Wisconsin

Charles Edward Allen, M.D. is one of 3,765 family medicine physician records with a practice address in Wisconsin. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 65% of them.

  • NPI issued2010 · 65% of these records are older, 33% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2009 · median 2007 among the 2,347 with a school on file
  • Record last updated2016 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

12 family medicine physician records list a practice address in Oconomowoc

They are 12 of the 506 NPPES records with a practice address in Oconomowoc, and 3,765 family medicine physician records in Wisconsin.

All 3,765 in Wisconsin → Every provider in Oconomowoc → Family Medicine Physician nationwide →

The 8 family medicine physician records with the nearest ZIP codes

  1. Stephanie Baginski, M.D.Summit, WI 530661992816748
  2. Paramjit Bamrah, MDSummit, WI 530661700935921
  3. Michael Cummens, M.D.Oconomowoc, WI 530661417014531
  4. James Gatto, MDSummit, WI 530661932214020
  5. John Gucciardi, M.D.Oconomowoc, WI 530661760417430
  6. Dale Johnson, MDOconomowoc, WI 530661447211404
  7. Kyle Kircher, M.D.Oconomowoc, WI 530661639155872
  8. Christina Meyer, MDSummit, WI 530661750332508

Common questions

What is Charles Edward Allen, M.D.'s NPI number?

Charles Edward Allen, M.D.'s National Provider Identifier (NPI) is 1871804336, issued on Jun 29, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Charles Edward Allen, M.D. located?

The NPPES record lists a practice address at 1185 Corporate Center Dr, Oconomowoc, WI, 53066. Phone: (262) 928-8400. Providers update this record themselves, so call before visiting.

How can I verify Charles Edward Allen, M.D.'s license?

NPPES lists Wisconsin license number 61157-020, 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 Charles Edward Allen, M.D. prescribe under Medicare Part D?

In 2024, Charles Edward Allen, M.D. had 342 Medicare Part D claims for 290 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.