Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Mara-Joanne Derinor, DNP, PMHNP-BC

Psychiatric/Mental Health Nurse Practitioner in Kissimmee, FL · enumerated 2022 · practices at Boss Psychiatry & Counseling.

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

National Provider Identifier

1518675156

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Registry record

Entity type Individual (Type 1)

Name Dr. Mara-Joanne Derinor

Credential DNP, PMHNP-BC

Sex Female

Practice address Kissimmee, FL, 34742

Phone (347) 460-9989

Fax (407) 337-0137

Enumeration date Nov 14, 2022

Last updated in NPPES Feb 9, 2026

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 11023083 (FL) 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

What is the NPI number for Mara-Joanne Derinor?

The National Provider Identifier (NPI) for Mara-Joanne Derinor is 1518675156, a Type 1 (individual) record in the CMS NPPES registry.

Where does Mara-Joanne Derinor practice?

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

Other providers at this practice address

Browse all →

Boss Psychiatry & Counseling Mental Health Clinic/Center (Including Community Mental Health Center) · Kissimmee, FL NPI 1619777240

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-09.