NPPES file of Aug 9, 2026

Corey Stephan Macrander, MD

Internal Medicine Physician · Appleton, WI

Corey Stephan Macrander, MD is an internal medicine physician with a practice address in Appleton, Wisconsin, and NPI 1346747755, issued on Apr 11, 2018. Check the license (Wisconsin 72866-20, 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
1346747755
Name
Corey Stephan Macrander
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
72866-20 WI
Self-reported in NPPES; status is on the state search
Practice location
3916 N Intertech CT, Appleton, WI 54913
Phone
(920) 996-1000
Enumerated
Apr 11, 2018
Record last updated
Jul 22, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20210809002568); accepts Medicare assignment
Medical or professional school
Wayne State University School Of Medicine, 2018
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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Also registered at 3916 N Intertech CT

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

  1. Nicholas Brice, PAPhysician Assistant1699262378
  2. Brandon Bukovitz, MDInternal Medicine Physician1831768399
  3. Christina Carnes, PA-CPhysician Assistant1376616417
  4. David Cupp, MDFamily Medicine Physician1184373789
  5. Stephen Dernlan, MDInternal Medicine Physician1083646608
  6. Aaron Douglas, MDFamily Medicine Physician1346252442

Verify Corey Stephan Macrander in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 72866-20
    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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4.7 times the Medicare Part D claims of the average internal medicine physician in 2024

14,842 Medicare Part D claims for 931 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 256 claims were for opioids.

  1. Corey Macrander14,842
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium913 claims
  2. Amlodipine Besylate753 claims
  3. Lisinopril542 claims
  4. Losartan Potassium535 claims
  5. Levothyroxine Sodium472 claims
  6. Omeprazole445 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. Primary Care Associates OF Appleton, LtdAppleton, WI

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

Corey Stephan Macrander among 2,078 internal medicine physician records in Wisconsin

Corey Stephan Macrander, 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 2018, is newer than 79% of them.

  • NPI issued2018 · 79% of these records are older, 19% newer
  • In a Medicare fileYes · 70% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated2018 · median 2002 among the 1,098 with a school on file
  • Record last updated2021 · 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).

39 internal medicine physician records list a practice address in Appleton

They are 39 of the 3,249 NPPES records with a practice address in Appleton, and 2,078 internal medicine physician records in Wisconsin.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Brandon Bukovitz, MDAppleton, WI 549131831768399
  2. Arun Cherian, M.DAppleton, WI 549131235478538
  3. Joan Crennan, MDAppleton, WI 549131679666952
  4. Stephen Dernlan, MDAppleton, WI 549131083646608
  5. Sonya Eiben, MDAppleton, WI 549131710916812
  6. Chenhao Fan, M.D.Appleton, WI 549131831351105
  7. Scott Gyorog, MDAppleton, WI 549131235346586
  8. Roderick Hubert, MDAppleton, WI 549131942350947

Common questions

What is Corey Stephan Macrander, MD's NPI number?

Corey Stephan Macrander, MD's National Provider Identifier (NPI) is 1346747755, issued on Apr 11, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Corey Stephan Macrander, MD located?

The NPPES record lists a practice address at 3916 N Intertech CT, Appleton, WI, 54913. Phone: (920) 996-1000. Providers update this record themselves, so call before visiting.

How can I verify Corey Stephan Macrander, MD's license?

NPPES lists Wisconsin license number 72866-20, 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 Corey Stephan Macrander, MD prescribe under Medicare Part D?

In 2024, Corey Stephan Macrander, MD had 14,842 Medicare Part D claims for 931 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.