NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

P. A. Janusonis, M.D., S.C.

Anesthesiology Physician in Oconomowoc, WI · enumerated 2006 · authorized official Palmira Janusonis, Authorized Official.

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

National Provider Identifier

1205883048

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name P. A. Janusonis, M.D., S.C.
Practice address 791 E Summit Ave, Oconomowoc, WI, 53066
Enumeration date May 27, 2006
Last updated in NPPES Jun 17, 2008

Taxonomy & classification

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians Primary
207LP2900X Pain Medicine (Anesthesiology) Physician Allopathic & Osteopathic Physicians Secondary

Authorized official

Name Palmira Janusonis
Title Authorized Official

Other identifiers

Identifier Type State Issuer
31223900 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

What is the NPI number for P. A. Janusonis, M.D., S.C.?
The NPI for P. A. Janusonis, M.D., S.C. is 1205883048, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for P. A. Janusonis, M.D., S.C.?
NPPES lists Palmira Janusonis (Authorized Official) as the authorized official for this organization.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-06-17.