Open Source Therapy & Counseling
NPI 1891200101 · Clinical Social Worker · Brooklyn, NY
Open Source Therapy & Counseling is a Clinical Social Worker organization in Brooklyn, NY (NPI 1891200101).
Provider details
- NPI number
- 1891200101
- Entity type
- Organization
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Organization subpart
- No
- Authorized official
- Christina Karlowski, Owner(347) 309-8548
- License
- 083877 (NY)
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
8 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
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
Other names (DBA / former)
- Other name
- Christina R. Karlowski, Lcsw
Additional practice locations (2)
- 645 Morgan Ave Ste 1Brooklyn, NY 11222-3709Phone: (347) 309-8548
- 331 Leonard St Fl 1Brooklyn, NY 11211-2309Phone: (347) 309-8548
Registry dates
- Enumerated
- 2017-12-08
- Last updated
- 2018-03-17
Frequently asked questions
- What is Open Source Therapy & Counseling's NPI number?
- Open Source Therapy & Counseling's National Provider Identifier (NPI) is 1891200101, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Open Source Therapy & Counseling?
- Open Source Therapy & Counseling is classified in the NPPES registry as Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Open Source Therapy & Counseling located?
- Open Source Therapy & Counseling's practice location on file with NPPES is 117 Dobbin St Ste 206, Brooklyn, NY 11222-2803.
- What is Open Source Therapy & Counseling's phone number?
- The practice phone number listed in the NPPES registry for Open Source Therapy & Counseling is (347) 309-8548.
- Who is the authorized official for Open Source Therapy & Counseling?
- The authorized official listed on Open Source Therapy & Counseling's NPPES record is Christina Karlowski, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Open Source Therapy & Counseling's NPI active?
- Yes — Open Source Therapy & Counseling's NPI (1891200101) is active in the NPPES registry as of the last update on 2018-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.