William O'sullivan
Quick Facts
NPI Validation Status: Verified
Provider Overview
WILLIAM O'SULLIVAN is a Professional Counselor provider based in Fernandina Beach, FL who has been registered with CMS since 2020. This NPI is currently Active under CMS NPPES registry.
Provider Details
Practice Location
Specialties & Licenses
Mailing Address
How to Use This NPI
For Insurance Billing
Use NPI 1801408877 in Box 33 of the CMS-1500 claim form. This number is required by all major insurance carriers to identify the billing provider and process electronic medical claims.
For Credentialing
Reference NPI 1801408877for provider credential verification. Hospital systems, state licensing boards, and CAQH directories query this number to verify the provider's active clinical status.
For Patients
Share NPI 1801408877 with your insurance company. If you need to verify out-of-network benefits or file a reimbursement claim, your insurance provider will require this number to process it.
About Professional Counselor
Professional Counselors provide individual, family, or group therapy to help clients resolve personal, social, career, or clinical mental health challenges.
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People Also Ask
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