Robert J Mayer Sr.
Robert J Mayer Sr. is a Pharmacist provider (Pharmacist) practicing in Arnold, MO, registered in the NPPES registry with NPI 1528407483 since 2013.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1528407483 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Robert J Mayer Sr. |
| Sex | Male |
| Practice address | 860 ARNOLD COMMONS DR, Arnold, MO, 63010 |
| Phone | 6362824817 |
| Fax | 6362824833 |
| Enumeration date | 2013-06-24 |
| Last updated in NPPES | 2013-06-24 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 183500000X | Pharmacist | Primary | 042046 | MO |
Copy-ready billing details
Provider: Robert Mayer NPI: 1528407483 Taxonomy: 183500000X (Pharmacist) Address: 860 ARNOLD COMMONS DR, Arnold, MO, 63010
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1417121385 | Dierbergs Markets Inc | Organization | Community/Retail Pharmacy | Arnold, MO |
| 1427332113 | Amanda Huff | Individual | Pharmacist | Arnold, MO |
| 1457943854 | Mercy Pharmacy Services LLC | Organization | Community/Retail Pharmacy | Arnold, MO |
| 1033827688 | Mark Ivantsov | Individual | Pharmacist | Arnold, MO |
Verify this record
Cross-check NPI 1528407483 against the authoritative CMS record: view Robert J Mayer Sr. 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 2013-06-24.