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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Brian Longhurst Merrill, DO

Psychiatry Physician in Balsam Lake, WI · enumerated 2006 · practices at Polk County Dept of Administration.

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

National Provider Identifier

1982648929

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Registry record

Entity type Individual (Type 1)
Name Brian Longhurst Merrill
Credential DO
Sex Male
Practice address Balsam Lake, WI, 54810
Phone (715) 485-8876
Enumeration date Jun 16, 2006
Last updated in NPPES Mar 1, 2023

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 73041 (MN) Secondary
2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 4993153 (UT) Secondary
2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 1851-321 (WI) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier Type State Issuer
751650 Other UT DMBA
200521603BM2 Other UT EMIA
79126 Other UT PEHP
200521603 Other UT FIRSTHEALTH
49931531200001 Other UT BCBS OF UT
107012431102 Other UT SELECTHEALTH

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

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Brian Merrill?
Brian Merrill is registered in NPPES with the primary taxonomy of Psychiatry Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-01.