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Heidi Grantz, LCSW
NPI 1881863439 · Clinical Social Worker · New Haven, CT
Heidi Grantz, LCSW is a Clinical Social Worker provider in New Haven, CT (NPI 1881863439).
Provider details
- NPI number
- 1881863439
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- No
- License
- 006203 (CT)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(88/100 index)
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
350 George St
New Haven, CT 06511-6617
Phone: (203) 737-5814
Fax: (203) 737-5455
Street-level locationGet directions
Mailing address
230 S Frontage Rd
New Haven, CT 06519-1124
Registry dates
- Enumerated
- 2008-02-28
- Last updated
- 2021-01-08
- Certified
- 2021-01-08
Frequently asked questions
- What is Heidi Grantz's NPI number?
- Heidi Grantz's National Provider Identifier (NPI) is 1881863439, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Heidi Grantz's specialty?
- Heidi Grantz is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Heidi Grantz located?
- Heidi Grantz's practice location on file with NPPES is 350 George St, New Haven, CT 06511-6617.
- What is Heidi Grantz's phone number?
- The practice phone number listed in the NPPES registry for Heidi Grantz is (203) 737-5814.
- Is Heidi Grantz's NPI active?
- Yes — Heidi Grantz's NPI (1881863439) is active in the NPPES registry as of the last update on 2021-01-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.