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Upper Valley Ent & Allergy Pllc

Otolaryngology/Facial Plastic Surgery Physician in Rexburg, ID · enumerated 2013 · authorized official Jay Mcmaster, Physician/Surgeon.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1124462494

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Registry record

Entity type Organization (Type 2)
Legal business name Upper Valley Ent & Allergy Pllc
Practice address 256 N 2nd E, Rexburg, ID, 83440
Phone (208) 656-9646
Fax (208) 656-9645
Enumeration date Apr 17, 2013
Last updated in NPPES Jun 11, 2014

Taxonomy & classification

207KA0200X Allergy Physician Allopathic & Osteopathic Physicians Secondary
207YX0905X Otolaryngology/Facial Plastic Surgery Physician Allopathic & Osteopathic Physicians Primary
363AM0700X Medical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers Secondary

Authorized official

Name Jay Mcmaster
Title Physician/Surgeon
Phone (208) 656-9646

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.

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Frequently asked questions

Where is Upper Valley Ent & Allergy Pllc located?
The practice location on file with NPPES is in Rexburg, ID.
How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2014-06-11. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-06-11.