Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Ms. Toni Marcina Tumonis, APRN

Q: What is the NPI number for Toni Tumonis?

The National Provider Identifier (NPI) for Toni Tumonis is 1952479321, a Type 1 (individual) record in the CMS NPPES registry.

Psychiatric/Mental Health Nurse Practitioner in Silver Spring, MD · enumerated 2006.

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

National Provider Identifier

1952479321

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Registry record

Entity type Individual (Type 1)

Name Ms. Toni Marcina Tumonis

Credential APRN

Sex Female

Practice address Silver Spring, MD, 20910

Phone (240) 472-5639

Enumeration date Dec 1, 2006

Last updated in NPPES Dec 6, 2016

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License R115284 (MD) 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
012173800	Medicaid	MD	-

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 Toni Tumonis practice?

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

What is the NPI number for Toni Tumonis?

The National Provider Identifier (NPI) for Toni Tumonis is 1952479321, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Ivette Sanchez-Carbo Clinical Psychologist · Silver Spring, MD NPI 1063490662 Kelly Cregan Clinical Social Worker · Silver Spring, MD NPI 1801993498 Elizabeth Pearce Clinical Social Worker · Silver Spring, MD NPI 1063574911 Elizabeth Hood Clinical Social Worker · Silver Spring, MD NPI 1003978875 Jacqueline Brown Orthodontics and Dentofacial Orthopedics Dentistry · Silver Spring, MD NPI 1003961079 Michael Bulger Clinical Psychologist · Silver Spring, MD NPI 1447390562 Mauricio Cortina Psychiatry Physician · Silver Spring, MD NPI 1285762179 Johnette Brock General Practice Dentistry · Silver Spring, MD NPI 1073639324

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-12-06.