Drs. Downey & Gantz DDS PC

Drs. Downey & Gantz DDS PC is a healthcare organization registered as General Practice Dentistry in Marshalltown, IA, holding Type 2 (organization) NPI 1437164506 since 2006. The authorized official on file is Matthew Downey, President.

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NPI	1437164506
Entity type	Organization (Type 2)
Legal business name	Drs. Downey & Gantz DDS PC
Practice address	201 NICHOLAS DR, Marshalltown, IA, 50158
Phone	6417522752
Fax	6417537981
Enumeration date	2006-07-29
Last updated in NPPES	2020-08-22

Authorized official

Name	Matthew Downey
Title	President
Phone	6417522752

Taxonomy & classification

Taxonomy code	Specialty	Primary	License	State
1223G0001X	General Practice Dentistry	Primary	—	—

Copy-ready billing details

Provider: Drs. Downey & Gantz DDS PC
NPI: 1437164506
Taxonomy: 1223G0001X (General Practice Dentistry)
Address: 201 NICHOLAS DR, Marshalltown, IA, 50158

Providers at this address

NPI	Name	Type	Specialty	Location
1487669750	Robert Gantz	Individual	Dentist	Marshalltown, IA
1962416297	Matthew Downey	Individual	Dentist	Marshalltown, IA
1629890520	Applewhite Dental Iowa PC	Organization	Dentist	Marshalltown, IA

Verify this record

Cross-check NPI 1437164506 against the authoritative CMS record: view Drs. Downey & Gantz DDS PC on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

Where is Drs. Downey & Gantz DDS PC located?

The practice location on file with NPPES is in Marshalltown, IA.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2020-08-22. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2020-08-22.