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

Dr. Michael Patrick Rudolph, DO

Anesthesiology Physician in Marshfield, WI · enumerated 2005.

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

National Provider Identifier

1295732923

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Michael Patrick Rudolph

Credential DO

Sex Male

Practice address Marshfield, WI, 54449

Phone (715) 387-5511

Enumeration date Jul 7, 2005

Last updated in NPPES Mar 19, 2026

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

Taxonomy & licenses

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License DO0000001935 (TN) Secondary

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License 02003014A (IN) Secondary

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License 3564 (IA) Secondary

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License 35353 (WI) Primary

207LP2900X Pain Medicine (Anesthesiology) Physician Allopathic & Osteopathic Physicians · License 3564 (IA) Secondary

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
0120733	Medicaid	IA	-
0442343	Medicaid	IA	-
000000391600	Other	IN	ANTHEM PROVIDER NUMBER
200802530	Medicaid	IN	-
11507531	Other	IN	CAQH NUMBER
9265107	Other	IN	PHCS PID NUMBER
50171	Other	IA	WELLMARK GROUP #
4571	Other	SD	MEDICAL LICENSE

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 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 Michael Rudolph?

Michael Rudolph 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.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-19.