Janet Seifert-Duffy, M.S., CCC-A
NPI 1902074883 · Audiologist-Hearing Aid Fitter · Southbury, CT
Janet Seifert-Duffy, M.S., CCC-A is a Audiologist-Hearing Aid Fitter provider in Southbury, CT (NPI 1902074883).
Provider details
- NPI number
- 1902074883
- Entity type
- Individual
- Primary specialty
- Audiologist-Hearing Aid FitterSpeech, Language and Hearing Service Providers
- Credential
- M.S., CCC-A
- Sex
- Female
- Sole proprietor
- No
- License
- 290 (CT)
Specialties & taxonomies
Speech, Language and Hearing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
100% 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
Mailing address
Registry dates
- Enumerated
- 2008-02-13
- Last updated
- 2014-12-02
Frequently asked questions
- What is Janet Seifert-Duffy's NPI number?
- Janet Seifert-Duffy's National Provider Identifier (NPI) is 1902074883, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Janet Seifert-Duffy's specialty?
- Janet Seifert-Duffy is listed in the NPPES registry with a primary specialty of Audiologist-Hearing Aid Fitter (Speech, Language and Hearing Service Providers).
- Where is Janet Seifert-Duffy located?
- Janet Seifert-Duffy's practice location on file with NPPES is 7 Garage Rd, Southbury, CT 06488-3884.
- What is Janet Seifert-Duffy's phone number?
- The practice phone number listed in the NPPES registry for Janet Seifert-Duffy is (203) 405-6715.
- Is Janet Seifert-Duffy's NPI active?
- Yes — Janet Seifert-Duffy's NPI (1902074883) is active in the NPPES registry as of the last update on 2014-12-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.