John Maclou Longo, M.D.
Radiation Oncology Physician · Milwaukee, WI
John Maclou Longo, M.D. is a radiation oncology physician with a practice address in Milwaukee, Wisconsin, and NPI 1356631139, issued on Apr 13, 2011. Check the license (Wisconsin 57527, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- John Maclou Longo
- Credential
- M.D.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- 57527 WI
Self-reported in NPPES; status is on the state search - Practice location
- 9200 W Wisconsin Ave, Milwaukee, WI 53226
- Phone
- (414) 805-4400
- Enumerated
- Apr 13, 2011
- Record last updated
- Apr 7, 2023
- Fax
- (414) 805-4369
- Medicaid ID
- 1356631139 WI
- Medicare enrollment
- Enrolled (PECOS I20160721000518); accepts Medicare assignment
- Medical or professional school
- University Of Nebraska College Of Medicine, 2011
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 153 in Wisconsin → Look up another NPI →
Also registered at 9200 W Wisconsin Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Shameem Aadam, RPHPharmacist1760755680
- Abubaker Abdalla, MDHospitalist Physician1194187617
- Sameem Abedin, MDHematology & Oncology Physician1063641157
- Lolia Abibo, M.D.Hospitalist Physician1912359795
- Haisam Abid, MBBSHospitalist Physician1578083184
- Faith Abodunrin, MDHematology & Oncology Physician1437768769
Verify John Maclou Longo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 57527Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
34% more Medicare Part D claims than the average radiation oncology physician in 2024
180 Medicare Part D claims for 73 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D.
Most prescribed
- Tamsulosin Hcl58 claims
- Omeprazole15 claims
- Lidocaine Hcl Viscous13 claims
- Ondansetron Hcl11 claims
- Oxybutynin Chloride Er11 claims
- Prochlorperazine Maleate11 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): 80.5 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).
Bills Medicare through one group practice
- The Medical College OF Wisconsin IncWest Bend, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Maclou Longo among 153 radiation oncology physician records in Wisconsin
John Maclou Longo, M.D. is one of 153 radiation oncology physician records with a practice address in Wisconsin. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 65% of them.
- NPI issued2011 · 65% of these records are older, 32% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 78% of these records are
- Graduated2011 · median 2008 among the 119 with a school on file
- Record last updated2023 · 44% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in Wisconsin
There are 153 radiation oncology physician records in Wisconsin.
All 153 in Wisconsin → Every provider in Milwaukee → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Manpreet Bedi, M.DMilwaukee, WI 532261427213438
- Joseph Bovi, M.D.Milwaukee, WI 532261376639732
- Adam Currey, M.D.Milwaukee, WI 532261952491508
- Beth Erickson Wittmann, MDMilwaukee, WI 532261730130659
- Selim Firat, MDMilwaukee, WI 532261447201363
- Elizabeth Gore, MDMilwaukee, WI 532261710938519
- Candice Johnstone, MD, MPHMilwaukee, WI 532261518982461
- Tracy Kelly, MDMilwaukee, WI 532261518057249
Common questions
What is John Maclou Longo, M.D.'s NPI number?
John Maclou Longo, M.D.'s National Provider Identifier (NPI) is 1356631139, issued on Apr 13, 2011. An NPI identifies a provider in billing; it is not a license.
Where is John Maclou Longo, M.D. located?
The NPPES record lists a practice address at 9200 W Wisconsin Ave, Milwaukee, WI, 53226. Phone: (414) 805-4400. Providers update this record themselves, so call before visiting.
How can I verify John Maclou Longo, M.D.'s license?
NPPES lists Wisconsin license number 57527, 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 Maclou Longo, M.D. prescribe under Medicare Part D?
In 2024, John Maclou Longo, M.D. had 180 Medicare Part D claims for 73 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.
What is John Maclou Longo, M.D.'s MIPS final score?
The 2023 MIPS final score is 80.5 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.