Cornelius W. Hyzer, MD
Family Medicine Physician · Shawano, WI
Cornelius W. Hyzer, MD is a family medicine physician with a practice address in Shawano, Wisconsin, and NPI 1275933418, issued on Aug 25, 2014. Check the license (Wisconsin 62809-20, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Cornelius W. Hyzer
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 62809-20 WI
Self-reported in NPPES; status is on the state search - Practice location
- 100 County Road B, Shawano, WI 54166
- Phone
- (715) 524-2161
- Enumerated
- Aug 25, 2014
- Record last updated
- Jul 18, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (715) 526-3461
- Medicare enrollment
- Enrolled (PECOS I20150120001686); accepts Medicare assignment
- Medical or professional school
- University Of Utah School Of Medicine, 2013
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,765 in Wisconsin → Look up another NPI →
Also registered at 100 County Road B
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Patricia Ainsworth, PTPhysical Therapist1790945863
- Manali AminNurse Practitioner1699423574
- Sean Angle, DPTPhysical Therapist1194641779
- Kerry Baird, APNPFamily Nurse Practitioner1952932972
- Sarah Bauer, PAPhysician Assistant1407362734
- Amanda Bernath, M.D.Family Medicine Physician1083024277
Verify Cornelius W. Hyzer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 62809-20Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.2 times the Medicare Part D claims of the average family medicine physician in 2024
11,423 Medicare Part D claims for 797 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 233 claims were for opioids.
Most prescribed
- Atorvastatin Calcium637 claims
- Lisinopril562 claims
- Amlodipine Besylate405 claims
- Omeprazole341 claims
- Gabapentin302 claims
- Losartan Potassium289 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 2 group practices
- Thedacare Medical Center - Shawano, Inc.Shawano, WI
- Thedacare, IncorporatedShawano, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Cornelius W. Hyzer among 3,765 family medicine physician records in Wisconsin
Cornelius W. Hyzer, MD 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 2014, is newer than 74% of them.
- NPI issued2014 · 74% of these records are older, 24% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2013 · 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).
19 family medicine physician records list a practice address in Shawano
They are 19 of the 335 NPPES records with a practice address in Shawano, and 3,765 family medicine physician records in Wisconsin.
All 3,765 in Wisconsin → Every provider in Shawano → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Vickiemarie Cloutier, MDShawano, WI 541661568467850
- Patricia Dauphinee, M.D.Shawano, WI 541661326064528
- Angela Divjak, MDShawano, WI 541661639343973
- Alisha Fahley, MDShawano, WI 541661255691515
- Yu Chin Fang, MDShawano, WI 541661780616896
- Mindy Frimodig, DOShawano, WI 541661013044833
- John Laabs, M.D.Shawano, WI 541661124221403
- Tod Lewis, MDShawano, WI 541661184651127
Common questions
What is Cornelius W. Hyzer, MD's NPI number?
Cornelius W. Hyzer, MD's National Provider Identifier (NPI) is 1275933418, issued on Aug 25, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Cornelius W. Hyzer, MD located?
The NPPES record lists a practice address at 100 County Road B, Shawano, WI, 54166. Phone: (715) 524-2161. Providers update this record themselves, so call before visiting.
How can I verify Cornelius W. Hyzer, MD's license?
NPPES lists Wisconsin license number 62809-20, 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 Cornelius W. Hyzer, MD prescribe under Medicare Part D?
In 2024, Cornelius W. Hyzer, MD had 11,423 Medicare Part D claims for 797 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.
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.