Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Caroline Trommels, NURSE PRACTITIONER

Family Nurse Practitioner in Norman, OK · enumerated 2015.

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

National Provider Identifier

1194195867

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Registry record

Entity type Individual (Type 1)

Name Mrs. Caroline Trommels

Credential NURSE PRACTITIONER

Sex Female

Practice address 3261 24th Ave Nw Ste 101, Norman, OK, 73069

Phone (405) 364-6432

Enumeration date Oct 6, 2015

Last updated in NPPES Jan 11, 2023

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License R 0103736 (OK) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License R0103736 (OK) Primary

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 does Caroline Trommels practice?

The practice location on file with NPPES is in Norman, OK. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Caroline Trommels?

The National Provider Identifier (NPI) for Caroline Trommels is 1194195867, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-01-11.