NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Dean Louis Martinelli, MD

Otolaryngology Physician in Oconomowoc, WI · enumerated 2006 · practices at Central Otologic Ltd.

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

National Provider Identifier

1932174117

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mr. Dean Louis Martinelli
Credential MD
Sex Male
Practice address 888 Thackeray Trail, Suite 108, Oconomowoc, WI, 53066
Fax (262) 567-0778
Enumeration date Feb 21, 2006
Last updated in NPPES Feb 27, 2008

Taxonomy & licenses

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians · License 18169 (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
30179100 Medicaid WI -
588 Other WI DEAN HEALTH PLAN
1004202 Other WI PHYSICIANS PLUS

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

Where does Dean Martinelli practice?
The practice location on file with NPPES is in Oconomowoc, WI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Dean Martinelli?
The National Provider Identifier (NPI) for Dean Martinelli is 1932174117, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-02-27.