Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John Dahunsi, DNP

Q: What is the NPI number for John Dahunsi?

The National Provider Identifier (NPI) for John Dahunsi is 1386378735, a Type 1 (individual) record in the CMS NPPES registry.

Psychiatric/Mental Health Nurse Practitioner in Olney, MD · enumerated 2022.

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

National Provider Identifier

1386378735

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Registry record

Entity type Individual (Type 1)

Name Dr. John Dahunsi

Credential DNP

Sex Male

Practice address 17709 Queen Elizabeth Dr, Olney, MD, 20832

Phone (301) 305-9738

Enumeration date Jul 12, 2022

Last updated in NPPES Jul 10, 2023

Taxonomy & licenses

363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License R201599 (MD) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does John Dahunsi practice?

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

What is the NPI number for John Dahunsi?

The National Provider Identifier (NPI) for John Dahunsi is 1386378735, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-07-10.