NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Mercy Dental Group, LLC

General Practice Dentistry in Middleton, WI · enumerated 2020 · authorized official Darren Marabelli, Chief Operating Officer.

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

National Provider Identifier

1174129019

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Mercy Dental Group, LLC
Practice address 6660 University Ave., Middleton, WI, 53562
Phone (608) 836-1446
Enumeration date Dec 7, 2020
Last updated in NPPES Dec 7, 2020

Taxonomy & classification

1223E0200X Endodontics Dental Providers Secondary
1223G0001X General Practice Dentistry Dental Providers Primary
1223P0300X Periodontics Dental Providers Secondary
1223S0112X Oral and Maxillofacial Surgery (Dentist) Dental Providers Secondary

Authorized official

Name Darren Marabelli
Title Chief Operating Officer
Phone (608) 609-4023

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 type of organization is Mercy Dental Group, LLC?
Mercy Dental Group, LLC is registered in NPPES as a General Practice Dentistry (its primary provider taxonomy).
What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-12-07.