WILLIAM O'SULLIVAN
NPI 1801408877
Counselor - Professional in Fernandina Beach, FL

Q: What is William O'sullivan's NPI number?

The NPI number for William O'sullivan is 1801408877. It was assigned to this individual provider in the NPPES registry on August 20, 2020.

Q: What is William O'sullivan's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Professional, with taxonomy code 101YP2500X.

Active since August 20, 2020

1890 S 14TH ST STE 110, FERNANDINA BEACH, FL 32034(904) 599-8320 Get Directions Write a Review

NPPES record last updated: August 20, 2020. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About William O'sullivan NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

WILLIAM O'SULLIVAN (NPI 1801408877) is an individual professional provider in Fernandina Beach, Florida and active in the NPI registry since August 2020.

NPPES Registry Identity

NPI1801408877

Entity TypeIndividualMale

Primary Taxonomy101YP2500X

Provider Legal NameWILLIAM O'SULLIVAN

Location Address1890 S 14TH ST STE 110Fernandina Beach, FL 32034-4718

Mailing Address1890 S 14th St Ste 110Fernandina Beach, FL 32034-4718 · (904) 599-8320

Phone(904) 599-8320

Sole ProprietorYes

Enumeration DateAugust 20, 2020

NPPES CertifiedAugust 20, 2020

✔ NPI 1801408877 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · ProfessionalBehavioral Health & Social Service Providers

Taxonomy Code101YP2500X

1890 S 14TH ST STE 110, Fernandina Beach, FL 32034

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Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

BETHANY G PAIGE RMHCI

Counselor (Mental Health)

1890 S 14TH ST STE 110
FERNANDINA BEACH, FL 32034

Nassau County (978) 403-0497

MARGARET NICK LCSW

Social Worker (Clinical)

1890 S 14TH ST STE 110
FERNANDINA BEACH, FL 32034

Nassau County (904) 383-0626

KELLY SAYERS COUNSELING SERVICES, LLC

Clinic/Center (Mental Health (Including Community Mental Health Center))

1890 S 14TH ST STE 110
FERNANDINA BEACH, FL 32034

Nassau County (904) 556-7242

KELLY ANN SAYERS LCSW

Social Worker (Clinical)

1890 S 14TH ST STE 110
FERNANDINA BEACH, FL 32034

Nassau County (904) 556-7242

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William O'sullivan's NPI number?

The NPI number for William O'sullivan is 1801408877. It was assigned to this individual provider in the NPPES registry on August 20, 2020.

Where is William O'sullivan located?

William O'sullivan practices at 1890 S 14th St Ste 110, Fernandina Beach, FL 32034. The listed phone number is (904) 599-8320.

What is William O'sullivan's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Professional, with taxonomy code 101YP2500X.

When was this NPI record last updated?

The NPPES record for William O'sullivan was last updated on August 20, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.