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

John M Longo, MD

Individual provider Radiation Oncology Physician · NPI 1104811835

John M Longo, MD is a Radiation Oncology Physician in Carroll, Iowa. Practices as a sole proprietor. Licensed in Iowa.

Licensed in
IA
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

311 S Clark St
Carroll, IA 51401-3038
Phone: (712) 792-8265
Fax: (712) 792-8264
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Radiation Oncology Physician (primary) Taxonomy 2085R0001X · Licence 30135 (IA)

Record details

NPI number1104811835
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedSeptember 19, 2005
Last updated in NPPESOctober 2, 2008
Mailing address657 N 57th Ave, Omaha, NE 68132-2037

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