Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Trenell Darby, DNP
Nurse Practitioner in Madison, WI · enumerated 2017.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1619413960
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Registry record
Entity type Individual (Type 1)
Name Dr. Trenell Darby
Credential DNP
Sex Male
Practice address 1705 Hoffman St, Ste 150, Madison, WI, 53704
Phone (608) 441-3220
Enumeration date Jan 10, 2017
Last updated in NPPES Jan 10, 2017
Taxonomy & licenses
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 7530 - 33 (WI) Primary
DNP · Doctor of Nursing Practice: A clinical doctorate for advanced practice nurses.
About the DNP 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.
Frequently asked questions
What is the NPI number for Trenell Darby?
The National Provider Identifier (NPI) for Trenell Darby is 1619413960, a Type 1 (individual) record in the CMS NPPES registry.
Where does Trenell Darby practice?
The practice location on file with NPPES is in Madison, WI. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-01-10.