Mr. Rodney J. Diffendaffer, RPH
Mr. Rodney J. Diffendaffer is a Pharmacist provider (Pharmacist) practicing in Aspen, CO, registered in the NPPES registry with NPI 1285842393 since 2007. The credential RPH stands for Registered Pharmacist. Practices at Aspen Centers for Advanced Treatment (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1285842393 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Mr. Rodney J. Diffendaffer |
| Credential | RPH |
| Sex | Male |
| Practice address | Aspen, CO, 81611 |
| Phone | 9709258837 |
| Fax | 9709254233 |
| Enumeration date | 2007-05-21 |
| Last updated in NPPES | 2007-07-08 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 183500000X | Pharmacist | Primary | 14639 | CO |
RPH — Registered Pharmacist: A licensed pharmacist registered with a state board of pharmacy. About the RPH credential
Copy-ready billing details
Provider: Rodney Diffendaffer, RPH NPI: 1285842393 Taxonomy: 183500000X (Pharmacist) Address: Aspen, CO, 81611
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1053315606 | Carl Schiller | Individual | Internal Medicine Physician | Aspen, CO |
| 1720082217 | Barry Mink | Individual | Internal Medicine Physician | Aspen, CO |
| 1902854045 | Linda Shaw | Individual | Psychiatric/Mental Health Nurse Practitioner | Aspen, CO |
| 1487692117 | Kenton Bruice | Individual | Specialist | Aspen, CO |
| 1376621698 | Eleanor Vonstade | Individual | Orthopaedic Surgery Physician | Aspen, CO |
| 1477753713 | Lyndsey Haynie | Individual | Physician Assistant | Aspen, CO |
| 1598031692 | Aspen Centers for Advanced Treatment | Organization | Child & Adolescent Psychiatry Physician | Aspen, CO |
Verify this record
Cross-check NPI 1285842393 against the authoritative CMS record: view Mr. Rodney J. Diffendaffer 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 2007-07-08.