Heidi Siebert, MFT
NPI 1740455435 · Marriage & Family Therapist · Southport, CT
Heidi Siebert, MFT is a Marriage & Family Therapist provider in Southport, CT (NPI 1740455435).
Provider details
- NPI number
- 1740455435
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- MFT
- Sex
- Female
- Sole proprietor
- Yes
- License
- 001250 (CT)
Specialties & taxonomies
Behavioral Health & Social 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
- 2008-04-24
- Last updated
- 2008-04-24
Frequently asked questions
- What is Heidi Siebert's NPI number?
- Heidi Siebert's National Provider Identifier (NPI) is 1740455435, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Heidi Siebert's specialty?
- Heidi Siebert is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Heidi Siebert located?
- Heidi Siebert's practice location on file with NPPES is 49 John Street, Southport, CT 06890-1436.
- What is Heidi Siebert's phone number?
- The practice phone number listed in the NPPES registry for Heidi Siebert is (203) 307-3030.
- Is Heidi Siebert's NPI active?
- Yes — Heidi Siebert's NPI (1740455435) is active in the NPPES registry as of the last update on 2008-04-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.