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

Dorothy Susan Ferreira, RDH

Dental Hygienist in River Vale, NJ · enumerated 2024 · practices at William R. Levin Dmd PA.

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

National Provider Identifier

1336908078

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Registry record

Entity type Individual (Type 1)
Name Dorothy Susan Ferreira
Credential RDH
Sex Female
Practice address River Vale, NJ, 07675
Phone (201) 666-7555
Enumeration date Mar 15, 2024
Last updated in NPPES Mar 15, 2024

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

Taxonomy & licenses

124Q00000X Dental Hygienist Dental Providers · License 22HI00497000 (NJ) Primary

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

What is the NPI number for Dorothy Ferreira?
The National Provider Identifier (NPI) for Dorothy Ferreira is 1336908078, a Type 1 (individual) record in the CMS NPPES registry.
Where does Dorothy Ferreira practice?
The practice location on file with NPPES is in River Vale, NJ. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-03-15.