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Tammy Lynn Merson, MSN, PMHNP-BC

Psychiatric/Mental Health Nurse Practitioner in Easton, MD · enumerated 2013.

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

National Provider Identifier

1235578261

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Registry record

Entity type Individual (Type 1)
Name Tammy Lynn Merson
Credential MSN, PMHNP-BC
Sex Female
Practice address 29466 Pintail Dr, Easton, MD, 21601
Phone (443) 746-3698
Enumeration date Jun 24, 2013
Last updated in NPPES Jan 30, 2026

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License R129055 (MD) Secondary
363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License R129055 (MD) Primary

Other identifiers

Identifier Type State Issuer
2025092326 Other MD ANCC
R129055 Other MD MBON

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.

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Frequently asked questions

Where does Tammy Merson practice?
The practice location on file with NPPES is in Easton, MD. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Tammy Merson?
The National Provider Identifier (NPI) for Tammy Merson is 1235578261, 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 2026-01-30.