Hightower & Grellner LLC
Hightower & Grellner LLC is a healthcare organization registered as Clinic/Center in Cushing, OK, holding Type 2 (organization) NPI 1558896084 since 2017. The authorized official on file is Sarah Vier, Credentialing Manager.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1558896084 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | Hightower & Grellner LLC |
| Other name | <Unavail> |
| Practice address | 1002 E CHERRY ST, Cushing, OK, 74023 |
| Phone | 9183064515 |
| Fax | 9183064519 |
| Enumeration date | 2017-04-21 |
| Last updated in NPPES | 2017-04-21 |
Authorized official
| Name | Sarah Vier |
|---|---|
| Title | Credentialing Manager |
| Phone | 9183064515 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 261Q00000X | Clinic/Center | Primary | — | — |
Copy-ready billing details
Provider: Hightower & Grellner LLC NPI: 1558896084 Taxonomy: 261Q00000X (Clinic/Center) Address: 1002 E CHERRY ST, Cushing, OK, 74023
Providers at this address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1962813030 | Hightower & Grellner | Organization | Family Medicine Physician | Cushing, OK |
| 1871906834 | Deven Elliott | Individual | Family Nurse Practitioner | Cushing, OK |
| 1427597905 | Sarah Laird | Individual | Family Nurse Practitioner | Cushing, OK |
| 1902468341 | Mollie Tanner | Individual | Family Nurse Practitioner | Cushing, OK |
| 1730712647 | Stillwater Medical Center Authority | Organization | Rural Health Clinic/Center | Cushing, OK |
| 1164163317 | Ashley Tucker | Individual | Family Nurse Practitioner | Cushing, OK |
| 1083597611 | Caleb Lanker | Individual | Chiropractor | Cushing, OK |
Verify this record
Cross-check NPI 1558896084 against the authoritative CMS record: view Hightower & Grellner LLC on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
What is the NPI number for Hightower & Grellner LLC?
Who is the authorized official for Hightower & Grellner LLC?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2017-04-21.