Michael F. Johnstone, MD
Family Medicine Physician · Brown Deer, WI
Michael F. Johnstone, MD is a family medicine physician with a practice address in Brown Deer, Wisconsin, and NPI 1982665394, issued on Mar 28, 2006. Check the license (Wisconsin 25308, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Michael F. Johnstone
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 25308 WI
Self-reported in NPPES; status is on the state search - Practice location
- 9233 N Green Bay RD, Brown Deer, WI 53209
- Phone
- (414) 270-8150
- Enumerated
- Mar 28, 2006
- Record last updated
- Jun 12, 2012 (not updated in 14 years: call before relying on the address or phone)
- Medicaid ID
- 30561400 WI
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,765 in Wisconsin → Look up another NPI →
Also registered at 9233 N Green Bay RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Gregory Matthews, MDFamily Medicine Physician1770524746
- Elise Mossallati, APRNNurse Practitioner1841436987
- Michael Plotkin, DOFamily Medicine Physician1881636819
Verify Michael F. Johnstone in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 25308Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% more Medicare Part D claims than the average family medicine physician in 2024
6,874 Medicare Part D claims for 543 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 86 claims were for opioids.
Most prescribed
- Atorvastatin Calcium492 claims
- Amlodipine Besylate327 claims
- Lisinopril318 claims
- Metoprolol Succinate277 claims
- Levothyroxine Sodium257 claims
- Losartan Potassium225 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): 75.8 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).
Michael F. Johnstone among 3,765 family medicine physician records in Wisconsin
Michael F. Johnstone, 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 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 46% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2012 · 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).
15 family medicine physician records list a practice address in Brown Deer
They are 15 of the 371 NPPES records with a practice address in Brown Deer, and 3,765 family medicine physician records in Wisconsin.
All 3,765 in Wisconsin → Every provider in Brown Deer → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Lisa Casey, DOGlendale, WI 532091215909791
- Beth Damitz, MDMilwaukee, WI 532091700837879
- Michael Fetherston, MDBrown Deer, WI 532091639130040
- Laura Gottschlich, DOMilwaukee, WI 532091033160882
- Joseph Gravel, MDMilwaukee, WI 532091205824786
- Paul Hartlaub, MDBrown Deer, WI 532091801844253
- Robin Helm, MDMilwaukee, WI 532091073564811
- David Klehm, MDMilwaukee, WI 532091619928454
Common questions
What is Michael F. Johnstone, MD's NPI number?
Michael F. Johnstone, MD's National Provider Identifier (NPI) is 1982665394, issued on Mar 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael F. Johnstone, MD located?
The NPPES record lists a practice address at 9233 N Green Bay RD, Brown Deer, WI, 53209. Phone: (414) 270-8150. Providers update this record themselves, so call before visiting.
How can I verify Michael F. Johnstone, MD's license?
NPPES lists Wisconsin license number 25308, 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 F. Johnstone, MD prescribe under Medicare Part D?
In 2024, Michael F. Johnstone, MD had 6,874 Medicare Part D claims for 543 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Michael F. Johnstone, MD's MIPS final score?
The 2023 MIPS final score is 75.8 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.