Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Gemma Modell Hill, DDS, MS

Orthodontics and Dentofacial Orthopedics Dentistry in Clackamas, OR · enumerated 2017 · practices at Gemma Hill DDS LLC.

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

National Provider Identifier

1366972671

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Registry record

Entity type Individual (Type 1)

Name Dr. Gemma Modell Hill

Credential DDS, MS

Sex Female

Practice address 14210 Se Sunnyside Rd Ste 300, Clackamas, OR, 97015

Phone (503) 659-5000

Enumeration date Jun 19, 2017

Last updated in NPPES Jul 16, 2024

Taxonomy & licenses

122300000X Dentist Dental Providers · License 2901022204 (MI) Secondary

1223X0400X Orthodontics and Dentofacial Orthopedics Dentistry Dental Providers · License DE61337356 (WA) Secondary

1223X0400X Orthodontics and Dentofacial Orthopedics Dentistry Dental Providers · License D11698 (OR) Primary

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

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.

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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 Gemma Hill?

Gemma Hill 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.

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Gemma Hill DDS LLC Dental Clinic/Center · Clackamas, OR NPI 1124886163

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-07-16.