Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Maryellen Simko, APRN

Adult Health Nurse Practitioner in Vernon, CT · enumerated 2006.

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

National Provider Identifier

1154428282

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Registry record

Entity type Individual (Type 1)

Name Maryellen Simko

Credential APRN

Sex Female

Practice address 95 Hockanum Blvd, Unit 5013, Vernon, CT, 06066

Phone (860) 538-5049

Enumeration date Sep 20, 2006

Last updated in NPPES Apr 7, 2017

Taxonomy & licenses

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 002739 (CT) Primary

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

Other identifiers

Identifier	Type	State	Issuer
004265006	Medicaid	CT	-

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

What is the NPI number for Maryellen Simko?

The National Provider Identifier (NPI) for Maryellen Simko is 1154428282, a Type 1 (individual) record in the CMS NPPES registry.

Where does Maryellen Simko practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-04-07.