Michael A. Johnson, MD
Internal Medicine Physician · Appleton, WI
Michael A. Johnson, MD is an internal medicine physician with a practice address in Appleton, Wisconsin, and NPI 1467484030, issued on Jul 6, 2006. Check the license (Wisconsin 33994-020, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Michael A. Johnson
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 33994-020 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
- Jul 6, 2006
- Record last updated
- Jul 3, 2025
- Fax
- (920) 997-8302
- Medicaid ID
- 31904500 WI
- Medicare enrollment
- Enrolled (PECOS I20060925000091); accepts Medicare assignment
- Medical or professional school
- Indiana University School Of Medicine, 1990
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,078 in Wisconsin → Look up another NPI →
Also registered at 3916 N Intertech CT
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nicholas Brice, PAPhysician Assistant1699262378
- Brandon Bukovitz, MDInternal Medicine Physician1831768399
- Christina Carnes, PA-CPhysician Assistant1376616417
- David Cupp, MDFamily Medicine Physician1184373789
- Stephen Dernlan, MDInternal Medicine Physician1083646608
- Aaron Douglas, MDFamily Medicine Physician1346252442
Verify Michael A. Johnson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 33994-020Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.1 times the Medicare Part D claims of the average internal medicine physician in 2024
13,033 Medicare Part D claims for 808 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 149 claims were for opioids.
Most prescribed
- Atorvastatin Calcium971 claims
- Levothyroxine Sodium542 claims
- Omeprazole469 claims
- Lisinopril429 claims
- Amlodipine Besylate384 claims
- Losartan Potassium321 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.
Michael A. Johnson among 2,078 internal medicine physician records in Wisconsin
Michael A. Johnson, 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 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 46% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated1990 · median 2002 among the 1,098 with a school on file
- Record last updated2025 · 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.
All 2,078 in Wisconsin → Every provider in Appleton → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Brandon Bukovitz, MDAppleton, WI 549131831768399
- Arun Cherian, M.DAppleton, WI 549131235478538
- Joan Crennan, MDAppleton, WI 549131679666952
- Stephen Dernlan, MDAppleton, WI 549131083646608
- Sonya Eiben, MDAppleton, WI 549131710916812
- Chenhao Fan, M.D.Appleton, WI 549131831351105
- Scott Gyorog, MDAppleton, WI 549131235346586
- Roderick Hubert, MDAppleton, WI 549131942350947
Common questions
What is Michael A. Johnson, MD's NPI number?
Michael A. Johnson, MD's National Provider Identifier (NPI) is 1467484030, issued on Jul 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael A. Johnson, 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 Michael A. Johnson, MD's license?
NPPES lists Wisconsin license number 33994-020, 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 Michael A. Johnson, MD prescribe under Medicare Part D?
In 2024, Michael A. Johnson, MD had 13,033 Medicare Part D claims for 808 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.