Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Maria Christina Koursaris, APRN

Adult Health Nurse Practitioner in Guilford, CT · enumerated 2019.

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

National Provider Identifier

1164083879

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Registry record

Entity type Individual (Type 1)

Name Dr. Maria Christina Koursaris

Credential APRN

Sex Female

Practice address 5 Durham Rd, Guilford, CT, 06437

Phone (203) 453-8625

Enumeration date Jun 24, 2019

Last updated in NPPES Jun 24, 2019

Taxonomy & licenses

363LG0600X Gerontology Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 7497 (CT) Secondary

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 7497 (CT) Primary

APRN · Advanced Practice Registered Nurse: An umbrella credential covering NPs, CRNAs, CNMs, and clinical nurse specialists. About the APRN 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

Where does Maria Koursaris practice?

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

What is the NPI number for Maria Koursaris?

The National Provider Identifier (NPI) for Maria Koursaris is 1164083879, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-06-24.