Sean McMillan, MD

Addiction Medicine · Internal Medicine · Rheumatology

21+ years in practiceNPI: 1558353821Licensed in IDLicensed in UT

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Credentials & Recognition

Specialties

Addiction MedicineInternal MedicineRheumatology

NPI sub-specialties

Internal Medicine, Rheumatology207RR0500X

Internal Medicine, Rheumatology207RR0500X

Practice Signals

Editorial signals beyond credentials. Patient transparency over opacity. See methodology.

Mid-Level (PA/NP) Use

Doctor-led visits

Years in Practice

21+ years

Estimated from NPI enumeration date

Featured in PBCMMG Rankings

#1

Top Rheumatologists in Idaho, 2026

Rheumatology · Idaho · 2026

#33

Top Rheumatologists in Utah, 2026

Rheumatology · Utah · 2026

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Frequently Asked Questions about Dr. Sean McMillan, MD

Where does Dr. Sean McMillan, MD practice?+
Dr. Sean McMillan, MD practices in Utah, UT. 801 POLE LINE RD W STE 381 TWIN FALLS, ID 833015810.
What is Dr. Sean McMillan, MD's phone number?+
Dr. Sean McMillan, MD's practice phone is 208-814-8150. Office contact information is verified on the PBCMMG profile.
What does Dr. Sean McMillan, MD specialize in?+
Dr. Sean McMillan, MD's primary specialty is Addiction Medicine, with additional focus on Internal Medicine, Rheumatology.
Is Dr. Sean McMillan, MD board certified?+
Board certification status for Dr. Sean McMillan, MD has not been verified in the data sources PBCMMG uses (ABMS, state medical boards). The PBCMMG profile shows their current credential set.
How long has Dr. Sean McMillan, MD been practicing?+
Dr. Sean McMillan, MD has been in active practice for 21+ years, based on NPI enumeration and state licensing records.
What is Dr. Sean McMillan, MD's NPI number?+
Dr. Sean McMillan, MD's National Provider Identifier (NPI) is 1558353821, registered in the federal NPPES registry.

Profile maintained by Palm Beach County Medical Media Group, Inc. | Data verified from public registries (NPPES, ABMS, state medical boards). Methodology · Editorial Standards

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