Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William J Holm, M.D.

Anesthesiology Physician in Wausau, WI · enumerated 2006.

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

National Provider Identifier

1164451530

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. William J Holm

Credential M.D.

Sex Male

Practice address 425 Pine Ridge Blvd, Suite 211, Wausau, WI, 54401

Phone (715) 845-5505

Fax (715) 848-2884

Enumeration date Jun 30, 2006

Last updated in NPPES Jul 9, 2007

Taxonomy & licenses

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License 46753020 (WI) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
HOLM	Other	WI	WPS
34556300	Other	WI	MANAGED HEALTH CARE
P00143615	Other	WI	MEDICARE RAILROAD
34556300	Medicaid	WI	-
92283	Other	WI	SECURITY HEALTH PLAN
92283	Other	WI	SECURITY HEALTH MEDICAID

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

What specialty is William Holm?

William Holm is registered in NPPES with the primary taxonomy of Anesthesiology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-09.