Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Stephen Herbert Troyer, DDS, MSD

Oral & Maxillofacial Surgery (D.M.D.) in Evansville, IN · enumerated 2007 · practices at Oral Surgery Group of Evansville, Inc.

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

National Provider Identifier

1952455743

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Stephen Herbert Troyer

Credential DDS, MSD

Sex Male

Practice address 550 W Virginia St, Evansville, IN, 47710

Phone (812) 425-5194

Fax (812) 435-8755

Enumeration date Jan 22, 2007

Last updated in NPPES Sep 10, 2015

Taxonomy & licenses

1223S0112X Oral and Maxillofacial Surgery (Dentist) Dental Providers · License 12006538 (IN) Secondary

204E00000X Oral & Maxillofacial Surgery (D.M.D.) Allopathic & Osteopathic Physicians · License 12006538 (IN) Primary

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

Other identifiers

Identifier	Type	State	Issuer
100246120	Medicaid	IN	-

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

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.

What specialty is Stephen Troyer?

Stephen Troyer is registered in NPPES with the primary taxonomy of Oral & Maxillofacial Surgery (D.M.D.). The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

David Yates Oral & Maxillofacial Surgery (D.M.D.) · Evansville, IN NPI 1215084413 Paul Pogue Oral & Maxillofacial Surgery (D.M.D.) · Evansville, IN NPI 1609923804 David Hayhurst Oral & Maxillofacial Surgery (D.M.D.) · Evansville, IN NPI 1386791580 Oral Surgery Group of Evansville, Inc Oral and Maxillofacial Surgery (Dentist) · Evansville, IN NPI 1467506188 William Farnsworth Oral and Maxillofacial Surgery (Dentist) · Evansville, IN NPI 1790813293 Randall Edwards Oral and Maxillofacial Surgery (Dentist) · Evansville, IN NPI 1871751644 Mitchell Troyer Oral and Maxillofacial Surgery (Dentist) · Evansville, IN NPI 1518387828

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-09-10.