NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum Organization subpart

Trihealth G LLC

Sleep Medicine (Internal Medicine) Physician in Hamilton, OH · enumerated 2012 · authorized official Donna Nienaber, Sr Vp & Corporate Counsel.

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

National Provider Identifier

1720349590

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Trihealth G LLC
Other name <Unavail>
Parent organization Trihealth G LLC
Practice address 3125 Hamilton Mason Rd, Hamilton, OH, 45011
Phone (513) 246-7000
Fax (513) 895-2147
Enumeration date Jun 7, 2012
Last updated in NPPES Aug 25, 2014

Taxonomy & classification

207RS0012X Sleep Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Donna Nienaber
Title Sr Vp & Corporate Counsel
Phone (513) 569-6062

Other identifiers

Identifier Type State Issuer
2565399 Medicaid OH -

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

Where is Trihealth G LLC located?
The practice location on file with NPPES is in Hamilton, OH.
How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2014-08-25. Verify at npiregistry.cms.hhs.gov.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-08-25.