Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. John Maclou Longo, MD

Individual provider Radiation Oncology Physician · NPI 1356631139

Dr. John Maclou Longo, MD is a Radiation Oncology in Milwaukee, Wisconsin. Graduated from University of Nebraska College of Medicine in 2011, 15 years ago. Practices with The Medical College of Wisconsin Inc, a 2,093-clinician group, works from 3 locations, accepts Medicare assignment and offers telehealth. Licensed in Wisconsin.

Years since qualifying
15
Trained at
University of Nebraska College of Medicine
Licensed in
WI
In the registry since
2011
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

9200 W Wisconsin Ave Radiation Oncology
Milwaukee, WI 53226-3522
Phone: (414) 805-4400
Fax: (414) 805-4369
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 9000 W Wisconsin Ave, Milwaukee, WI 53226-4874 — (414) 607-5280
  • 3200 Pleasant Valley Rd, West Bend, WI 53095-9274 — (262) 836-7200

Specialties & licences

Radiation Oncology Physician (primary) Taxonomy 2085R0001X · Licence 57527 (WI)

Record details

NPI number1356631139
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 13, 2011
Last updated in NPPESApril 7, 2023
Certification dateApril 7, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyRADIATION ONCOLOGY
Medical schoolUNIVERSITY OF NEBRASKA COLLEGE OF MEDICINE
Graduated 2011 (15 years in practice)
Group practice The Medical College Of Wisconsin Inc — 2093 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations7 on file with Medicare

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