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

Hightower & Grellner LLC

Organization Clinic/Center · NPI 1558896084

Hightower & Grellner LLC is a Clinic/Center in Cushing, Oklahoma. Registered with an NPI since 2017.

In the registry since
2017
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

1002 E Cherry St
Cushing, OK 74023-4102
Phone: (918) 306-4515
Fax: (918) 306-4519
Show map & directions

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

Specialties & licences

Clinic/Center (primary) Taxonomy 261Q00000X

Record details

NPI number1558896084
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Sarah Vier — Credentialing Manager · (918) 306-4515
Other names Pipeline Crossroads Clinic
NPI enumeratedApril 21, 2017
Last updated in NPPESApril 21, 2017
Mailing addressPo Box 88, Cushing, OK 74023-0088