IndividualActive
Heidi Seifert
NPI 1811129869 · Clinical Social Worker · New York, NY
Heidi Seifert is a Clinical Social Worker provider in New York, NY (NPI 1811129869).
Provider details
- NPI number
- 1811129869
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- R072690-1 (NY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(85/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 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
1727 Amsterdam Ave
New York, NY 10031-4611
Phone: (212) 694-9200
Fax: (212) 694-9230
Street-level locationGet directions
Mailing address
434 E 84th St
New York, NY 10028-6200
Registry dates
- Enumerated
- 2009-08-10
- Last updated
- 2009-08-10
Frequently asked questions
- What is Heidi Seifert's NPI number?
- Heidi Seifert's National Provider Identifier (NPI) is 1811129869, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Heidi Seifert's specialty?
- Heidi Seifert is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Heidi Seifert located?
- Heidi Seifert's practice location on file with NPPES is 1727 Amsterdam Ave, New York, NY 10031-4611.
- What is Heidi Seifert's phone number?
- The practice phone number listed in the NPPES registry for Heidi Seifert is (212) 694-9200.
- Is Heidi Seifert's NPI active?
- Yes — Heidi Seifert's NPI (1811129869) is active in the NPPES registry as of the last update on 2009-08-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.