Samantha Lynn McGreer Winstead, MD
Internal Medicine Physician · Grafton, WI
Samantha Lynn McGreer Winstead, MD is an internal medicine physician with a practice address in Grafton, Wisconsin, and NPI 1033670047, issued on Mar 31, 2019. Check the license (Wisconsin 83964-20, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Samantha Lynn McGreer Winstead
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 83964-20 WI
2023010409 MO
Self-reported in NPPES; status is on the state search - Practice location
- 2061 Cheyenne CT, Grafton, WI 53024
- Phone
- (262) 376-1934
- Enumerated
- Mar 31, 2019
- Record last updated
- Oct 9, 2024
- Medicare enrollment
- Enrolled (PECOS I20240731001199); accepts Medicare assignment
- Medical or professional school
- Illinois Medical College, 2019
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,078 in Wisconsin → Look up another NPI →
Also registered at 2061 Cheyenne CT
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Anne Kozuch, APNPNurse Practitioner1972961365
- Kaylee Popp, FNP-CFamily Nurse Practitioner1114767290
Verify Samantha Lynn McGreer Winstead in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 83964-20Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average internal medicine physician in 2024
228 Medicare Part D claims for 32 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Amlodipine Besylate21 claims
- Losartan Potassium17 claims
- Atorvastatin Calcium13 claims
- Lisinopril11 claims
- Metformin Hcl11 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 86.9 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $41.84
2 payments; by number, the most common kind was food and beverage; the largest payer was Dynavax Technologies Corporation. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Columbia St Marys Hospital Milwaukee IncGrafton, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Samantha Lynn McGreer Winstead among 2,078 internal medicine physician records in Wisconsin
Samantha Lynn McGreer Winstead, MD 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 2019, is newer than 81% of them.
- NPI issued2019 · 81% of these records are older, 16% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2019 · median 2002 among the 1,098 with a school on file
- Record last updated2024 · 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).
19 internal medicine physician records list a practice address in Grafton
They are 19 of the 459 NPPES records with a practice address in Grafton, and 2,078 internal medicine physician records in Wisconsin.
All 2,078 in Wisconsin → Every provider in Grafton → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Muhammed Al-Fawakhiri, MDGrafton, WI 530241942276613
- Daniel Attanasio, D.O.Grafton, WI 530241609801380
- Melinda Bonilla-Puetz, MDGrafton, WI 530241942233101
- Richard Bunting, MDGrafton, WI 530241730111964
- Katherine Burrows, DOGrafton, WI 530241942323878
- William Ebinger, MDGrafton, WI 530241700818952
- John Feilbach, M.D.Grafton, WI 530241538191168
- Ashwini Gundelly, M.D.Grafton, WI 530241750310801
Common questions
What is Samantha Lynn McGreer Winstead, MD's NPI number?
Samantha Lynn McGreer Winstead, MD's National Provider Identifier (NPI) is 1033670047, issued on Mar 31, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Samantha Lynn McGreer Winstead, MD located?
The NPPES record lists a practice address at 2061 Cheyenne CT, Grafton, WI, 53024. Phone: (262) 376-1934. Providers update this record themselves, so call before visiting.
How can I verify Samantha Lynn McGreer Winstead, MD's license?
NPPES lists Wisconsin license number 83964-20, 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 Samantha Lynn McGreer Winstead, MD prescribe under Medicare Part D?
In 2024, Samantha Lynn McGreer Winstead, MD had 228 Medicare Part D claims for 32 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Samantha Lynn McGreer Winstead, MD's MIPS final score?
The 2023 MIPS final score is 86.9 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.