Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Justin Defendis Mertens

Individual provider Certified Registered Nurse Anesthetist · NPI 1073374146

Justin Defendis Mertens is a Certified Registered Nurse Anesthetist (CRNA) in Fresno, California. Graduated from National Medical University in 2025, 1 year ago. Practices with Anesthesia Consultants of Fresno, a 66-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
1
Trained at
National Medical University
Licensed in
CA
In the registry since
2024
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Practice location Address checks out

8840 N Fuller Ave
Fresno, CA 93720-1626
Phone: (559) 367-4171
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Certified Registered Nurse Anesthetist (primary) Taxonomy 367500000X · Licence 95002820 (CA)

Record details

NPI number1073374146
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedJanuary 17, 2024
Last updated in NPPESMarch 17, 2026
Certification dateMarch 17, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)
Medical schoolNATIONAL MEDICAL UNIVERSITY
Graduated 2025 (1 years in practice)
Group practice Anesthesia Consultants Of Fresno — 66 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in Fresno