Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Brenda K Balthazor, PA

Medical Physician Assistant in Wausau, WI · enumerated 2006 · practices at Ent & Allergy Associates, S.C..

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

National Provider Identifier

1851316871

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Registry record

Entity type Individual (Type 1)

Name Brenda K Balthazor

Credential PA

Sex Female

Practice address 512 S 28th Ave, Wausau, WI, 54401

Phone (715) 847-2021

Fax (715) 847-2325

Enumeration date Jul 12, 2006

Last updated in NPPES Apr 8, 2020

Taxonomy & licenses

363AM0700X Medical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 186923 (WI) Primary

PA · Physician Assistant: A licensed clinician who practices medicine in collaboration with physicians, trained in a graduate PA program. About the PA credential

Other identifiers

Identifier	Type	State	Issuer
42871300	Medicaid	WI	-

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 → Validate an NPI →

Frequently asked questions

Is NPI 1851316871 active?

Yes, as of the latest NPPES snapshot, NPI 1851316871 is active (record last updated 2020-04-08).

How do I verify Brenda Balthazor's NPI record?

Cross-check NPI 1851316871 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

David Edmondson Allergy Physician · Wausau, WI NPI 1124079033 Ent & Allergy Associates, S.C. Otolaryngology Physician · Wausau, WI NPI 1255384301 Mark Voss Otolaryngology Physician · Wausau, WI NPI 1700830205 Gregory Sewall Otolaryngology Physician · Wausau, WI NPI 1336195023 Sarvi Nalwa Otolaryngology Physician · Wausau, WI NPI 1467491324 Todd Hostetler Allergy & Immunology Physician · Wausau, WI NPI 1619015088 Jessica Weddle Otolaryngology/Facial Plastic Surgery Physician · Wausau, WI NPI 1275725913 Mollie Berg Medical Physician Assistant · Wausau, WI NPI 1124352604

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-04-08.