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Rodney J. Diffendaffer , RPH

Pharmacist • Aspen, CO

Active NPI 1285842393 Individual Practitioner Male Practitioner
Practice location in NPPES

100 E Main St, Suite 102
Aspen, CO 816111780

Call 9709258837 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

100 E Main St
Suite 102

Aspen, CO 816111780

Telephone 9709258837
Fax 9709254233
Organization at the Same NPPES Address or Phone
Aspen Centers For Advanced Treatment Facility NPI 1598031692

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

NPI first issued

2007

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Medicare assignment not listed

CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Compared with the same specialty in Aspen and Colorado

8 active clinicians are listed under Pharmacist with a practice address in Aspen, CO (4,386 in Colorado).

Addresses are self-reported to NPPES and may be out of date.

Sources: CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo · Report an error.

Specialties & License Numbers Reported to NPPES

Pharmacist Primary Specialty

NUCC Taxonomy Code: 183500000X

License # reported to NPPES CO 14639

An individual licensed by the appropriate state regulatory agency to engage in the practice of pharmacy. The practice of pharmacy includes, but is not limited to, assessment, interpretation, evaluation, and implementation, initiation, monitoring or modification of medication and or medical orders; the compounding or dispensing of medication and or medical orders; participation in drug and device procurement, storage, and selection; drug administration; drug regimen reviews; drug or drug-related research; provision of patient education and the provision of those acts or services necessary to provide medication therapy management services in all areas of patient care.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Colorado Division of Professions and Occupations.
Look Up on State Board Site

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

4 listed
NPI 1487692117

Doctor of Medicine (M.D.)

Dr. Carl Schiller , MD

Internal Medicine

NPI 1053315606

Doctor of Medicine (M.D.)

Linda Shaw , NP

Nurse Practitioner - Psychiatric/Mental Health

NPI 1902854045

Nurse Practitioner

Dr. Eleanor Vonstade , MD

Orthopaedic Surgery

NPI 1376621698

Doctor of Medicine (M.D.)

Career & Practice History

NPI enumerated May 21, 2007.

No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.

No reviews have been published yet. Leave a review.

NPI Administrative Meta

NPI Number: 1285842393
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: May 21, 2007
Last Update: July 08, 2007
Sole Proprietor: Yes

Other Pharmacists in Aspen

Mailing Address

100 E Main St, Suite 102

Aspen, CO 816111780

Phone: 9709258837

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.