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

Cancer Centers of Southwest Oklahoma, LLC

Organization Oncology Clinic/Center · NPI 1912156035

Cancer Centers of Southwest Oklahoma, LLC is an Oncology Clinic/Center in Duncan, Oklahoma. Registered with an NPI since 2008.

In the registry since
2008
What do these letters mean?
LLC — Limited liability company
A form of business registration, not a clinical qualification.

See every abbreviation used in this directory →

Practice location Address checks out

1407 Whisenant Dr
Duncan, OK 73533-1650
Phone: (580) 251-8841
Show map & directions

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

Specialties & licences

Oncology Clinic/Center (primary) Taxonomy 261QX0200X

Record details

NPI number1912156035
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Randall Segler — President And Manager · (580) 585-5511
Other names Southwest Oklahoma Cancer Center, L.L.C.
NPI enumeratedSeptember 12, 2008
Last updated in NPPESSeptember 17, 2008
Mailing address3401 West Gore Boulevard, Lawton, OK 73505-6332