John R. Ewing, MD
Addiction Medicine (Family Medicine) Physician · Madison, WI
John R. Ewing, MD is an addiction medicine (family medicine) physician with a practice address in Madison, Wisconsin, and NPI 1053378331, issued on Apr 28, 2006. Check the license (Wisconsin 47760-20, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- John R. Ewing
- Credential
- MD
- Primary taxonomy
- Addiction Medicine (Family Medicine) Physician 207QA0401X
- License number
- 47760-20 WI
Self-reported in NPPES; status is on the state search - Practice location
- 202 S Park St, Madison, WI 53715
- Phone
- (608) 417-8144
- Enumerated
- Apr 28, 2006
- Record last updated
- Dec 6, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicaid ID
- 34628600 WI
- Medicare enrollment
- Enrolled (PECOS I20050418001189); accepts Medicare assignment
- Medical or professional school
- University Of New Mexico School Of Medicine, 1995
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
6 nearest addiction medicine (family medicine) physician records → All 7 in Wisconsin → Look up another NPI →
Also registered at 202 S Park St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify John R. Ewing in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 47760-20Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
23% fewer Medicare Part D claims than the average addiction medicine (family medicine) physician in 2024
508 Medicare Part D claims for 54 beneficiaries, against an average of 664 among the 581 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 12 claims were for opioids.
Most prescribed
- Buprenorphine-Naloxone62 claims
- Buprenorphine Hcl45 claims
- Zolpidem Tartrate34 claims
- Clonazepam27 claims
- Methylphenidate Hcl26 claims
- Suboxone24 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
- Meriter Hospital IncMadison, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Addiction Medicine (Family Medicine) Physician providers in Wisconsin
There are 7 addiction medicine (family medicine) physician records in Wisconsin.
All 7 in Wisconsin → Every provider in Madison → Addiction Medicine (Family Medicine) Physician nationwide →
The 6 addiction medicine (family medicine) physician records with the nearest ZIP codes
- Ana Pearson, MDMadison, WI 537191770112658
- Rajbir Grewal, MDMadison, WI 537051669904371
- Andrew Putney, MDPortage, WI 539011912973942
- Hishita Parikh, M.D.Wauwatosa, WI 532131134548340
- Farzaneh Masool Tondkar, M.D.Hales Corners, WI 531301689811861
- Donald Weinmeister, MDChippewa Falls, WI 547291811926819
Common questions
What is John R. Ewing, MD's NPI number?
John R. Ewing, MD's National Provider Identifier (NPI) is 1053378331, issued on Apr 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John R. Ewing, MD located?
The NPPES record lists a practice address at 202 S Park St, Madison, WI, 53715. Phone: (608) 417-8144. Providers update this record themselves, so call before visiting.
How can I verify John R. Ewing, MD's license?
NPPES lists Wisconsin license number 47760-20, 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 John R. Ewing, MD prescribe under Medicare Part D?
In 2024, John R. Ewing, MD had 508 Medicare Part D claims for 54 beneficiaries; the average among addiction medicine (family medicine) physician prescribers was 664. 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.