What is Stephanie Duff's NPI number?

Stephanie Duff's National Provider Identifier (NPI) is 1396365748, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Stephanie Duff's specialty?

Stephanie Duff is listed in the NPPES registry with a primary specialty of Speech-Language Pathologist (Speech, Language and Hearing Service Providers).

Where is Stephanie Duff located?

Stephanie Duff's practice location on file with NPPES is 101 Fireplace Neck Rd, Brookhaven, NY 11719-9796.

What is Stephanie Duff's phone number?

The practice phone number listed in the NPPES registry for Stephanie Duff is (516) 318-2940.

Is Stephanie Duff's NPI active?

Yes — Stephanie Duff's NPI (1396365748) is active in the NPPES registry as of the last update on 2025-05-06.

IndividualActive

Stephanie Duff

NPI 1396365748 · Speech-Language Pathologist · Brookhaven, NY

Stephanie Duff is a Speech-Language Pathologist provider in Brookhaven, NY (NPI 1396365748).

Provider details

NPI number: 1396365748
Entity type: Individual
Primary specialty: Speech-Language PathologistSpeech, Language and Hearing Service Providers
Sex: Female
Sole proprietor: No

Specialties & taxonomies

Speech-Language PathologistPrimary235Z00000X
Speech, Language and Hearing Service Providers

Profile Score

Established profile(58/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
6 yrs in NPPES registry
Profile completeness38% of score
83% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

101 Fireplace Neck Rd

Brookhaven, NY 11719-9796

Phone: (516) 318-2940

Street-level locationGet directions

More NY providers

Mailing address

668 N Broome Ave

Lindenhurst, NY 11757-2801

Enumerated: 2020-04-24
Last updated: 2025-05-06
Certified: 2025-05-06

Frequently asked questions

What is Stephanie Duff's NPI number?: Stephanie Duff's National Provider Identifier (NPI) is 1396365748, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Stephanie Duff's specialty?: Stephanie Duff is listed in the NPPES registry with a primary specialty of Speech-Language Pathologist (Speech, Language and Hearing Service Providers).
Where is Stephanie Duff located?: Stephanie Duff's practice location on file with NPPES is 101 Fireplace Neck Rd, Brookhaven, NY 11719-9796.
What is Stephanie Duff's phone number?: The practice phone number listed in the NPPES registry for Stephanie Duff is (516) 318-2940.
Is Stephanie Duff's NPI active?: Yes — Stephanie Duff's NPI (1396365748) is active in the NPPES registry as of the last update on 2025-05-06.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.