Mary Sullivan, LCSW
Quick Facts
NPI Validation Status: Verified
Provider Overview
MARY SULLIVAN, LCSW is a Clinical Social Worker provider based in Cos Cob, CT who has been registered with CMS since 2006. 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 1174551030 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 1174551030for 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 1174551030 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 Clinical Social Worker
Clinical Social Workers provide counseling, therapy, and support services to diagnose and treat mental, behavioral, and emotional disorders, often advocating for clients' access to social resources.
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People Also Ask
What is Mary Sullivan's NPI number?
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What does Mary Sullivan specialize in?
1041C0700X.