Dr. Keith Loewenstern, PHARMD
Dr. Keith Loewenstern is a Pharmacist provider (Pharmacist) practicing in Amarillo, TX, registered in the NPPES registry with NPI 1659609857 since 2009. The credential PHARMD stands for Doctor of Pharmacy. Practices at Walgreen Co (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1659609857 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Keith Loewenstern |
| Credential | PHARMD |
| Sex | Male |
| Practice address | 3320 BELL ST, Amarillo, TX, 79106 |
| Phone | 8064686150 |
| Enumeration date | 2009-11-27 |
| Last updated in NPPES | 2009-11-27 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 183500000X | Pharmacist | Primary | 39456 | TX |
PHARMD — Doctor of Pharmacy: A licensed pharmacist with a professional doctorate in pharmacy. About the PHARMD credential
Copy-ready billing details
Provider: Keith Loewenstern, PHARMD NPI: 1659609857 Taxonomy: 183500000X (Pharmacist) Address: 3320 BELL ST, Amarillo, TX, 79106
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1699782573 | Walgreen Co | Organization | Pharmacy | Amarillo, TX |
| 1053649525 | Stephanie Spangler | Individual | Pharmacist | Amarillo, TX |
| 1588992796 | Kathleen Henson | Individual | Pharmacist | Amarillo, TX |
| 1851614770 | Brandon Pshigoda | Individual | Pharmacist | Amarillo, TX |
| 1912221342 | Andris Helterbran | Individual | Pharmacist | Amarillo, TX |
| 1700100013 | Steven Lawrence | Individual | Pharmacist | Amarillo, TX |
| 1427334481 | Dustin Wynne | Individual | Pharmacist | Amarillo, TX |
| 1336416312 | Leena Patel | Individual | Pharmacist | Amarillo, TX |
Verify this record
Cross-check NPI 1659609857 against the authoritative CMS record: view Dr. Keith Loewenstern 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
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2009-11-27.