Robert Jay Marshall, DDS, MS

Robert Jay Marshall is a Orthodontics and Dentofacial Orthopedics Dentistry provider (Dentist) practicing in Great Falls, MT, registered in the NPPES registry with NPI 1063670032 since 2008. The credential DDS stands for Doctor of Dental Surgery.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI	1063670032
Entity type	Individual (Type 1)
Name	Robert Jay Marshall
Credential	DDS, MS
Sex	Male
Practice address	Great Falls, MT, 59405
Phone	4067610314
Enumeration date	2008-05-27
Last updated in NPPES	2025-02-19

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

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
261Q00000X	Clinic/Center	Secondary	2384	MT
1223X0400X	Orthodontics and Dentofacial Orthopedics Dentistry	Primary	2384	MT

DDS — Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

Copy-ready billing details

Provider: Robert Marshall, DDS, MS
NPI: 1063670032
Taxonomy: 1223X0400X (Orthodontics and Dentofacial Orthopedics Dentistry)
Address: Great Falls, MT, 59405

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1356497473	David R Neil DDS PC	Organization	Orthodontics and Dentofacial Orthopedics Dentistry	Great Falls, MT
1346518834	Marshall Orthodontics, P.C.	Organization	Orthodontics and Dentofacial Orthopedics Dentistry	Great Falls, MT

Verify this record

Cross-check NPI 1063670032 against the authoritative CMS record: view Robert Jay Marshall 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

What specialty is Robert Marshall?

Robert Marshall is registered in NPPES with the primary taxonomy of Orthodontics and Dentofacial Orthopedics Dentistry. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2025-02-19.