NPI Portal NPI Lookup & Verification

Mr. Arthur H. Siegle, RPH

Mr. Arthur H. Siegle is a Pharmacist provider (Pharmacist) practicing in Boulder, CO, registered in the NPPES registry with NPI 1164556148 since 2007. The credential RPH stands for Registered Pharmacist.

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NPI 1164556148
Entity type Individual (Type 1)
Name Mr. Arthur H. Siegle
Credential RPH
Sex Male
Practice address 1333 IRIS AVE, IRIS PHARMACY, Boulder, CO, 80304
Phone 3034136288
Fax 3034136291
Enumeration date 2007-03-14
Last updated in NPPES 2007-07-08

Taxonomy & licenses

Taxonomy code Specialty Primary License State
183500000X Pharmacist Primary 10875 CO

RPH — Registered Pharmacist: A licensed pharmacist registered with a state board of pharmacy. About the RPH credential

Copy-ready billing details
Provider: Arthur Siegle, RPH
NPI: 1164556148
Taxonomy: 183500000X (Pharmacist)
Address: 1333 IRIS AVE, IRIS PHARMACY, Boulder, CO, 80304

Other providers at this practice address

NPI Name Type Specialty Location
1982606521 Karen Hine Individual Psychiatric/Mental Health Nurse Practitioner Boulder, CO
1679556203 Elizabeth Cullen Individual Nurse Practitioner Boulder, CO
1003873373 Kristina Hindert Individual Psychiatry Physician Boulder, CO
1710938816 Brenda Bridges Individual Advanced Practice Midwife Boulder, CO
1194827378 Mary Ellen Becker Individual Psychiatry Physician Boulder, CO
1588766778 Safia Nawroz Individual Psychiatry Physician Boulder, CO
1114020245 Raquel Cagan Individual Clinical Child & Adolescent Psychologist Boulder, CO
1972606176 Maria Fiorini Individual Community Health Registered Nurse Boulder, CO

Verify this record

Cross-check NPI 1164556148 against the authoritative CMS record: view Mr. Arthur H. Siegle 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

How do I verify Arthur Siegle's NPI record?
Cross-check NPI 1164556148 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1164556148 active?
Yes — as of the latest NPPES snapshot, NPI 1164556148 is active (record last updated 2007-07-08).

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.