Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Ingrid E Trenkle MD Inc

Q: What is the NPI number for Ingrid E Trenkle MD Inc?

The NPI for Ingrid E Trenkle MD Inc is 1285976423, a Type 2 (organization) record in the CMS NPPES registry.

MOHS-Micrographic Surgery Physician in Redlands, CA · enumerated 2013 · authorized official Ingrid Trenkle, Owner.

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

National Provider Identifier

1285976423

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Registry record

Entity type Organization (Type 2)

Legal business name Ingrid E Trenkle MD Inc

Practice address 124 E Olive Ave, Redlands, CA, 92373

Phone (909) 335-2018

Fax (909) 335-1641

Enumeration date Mar 26, 2013

Last updated in NPPES Mar 26, 2013

Taxonomy & classification

207ND0101X MOHS-Micrographic Surgery Physician Allopathic & Osteopathic Physicians · License G27162 (CA) Primary

Authorized official

Name Ingrid Trenkle

Title Owner

Phone (909) 335-2018

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

Who is the authorized official for Ingrid E Trenkle MD Inc?

NPPES lists Ingrid Trenkle (Owner) as the authorized official for this organization.

What is the NPI number for Ingrid E Trenkle MD Inc?

The NPI for Ingrid E Trenkle MD Inc is 1285976423, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-03-26.