IndividualActive
Jonathan Alex, LCSW
NPI 1669424305 · Clinical Social Worker · New York, NY
Jonathan Alex, LCSW is a Clinical Social Worker provider in New York, NY (NPI 1669424305).
Provider details
- NPI number
- 1669424305
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Male
- License
- R052139-1 (NY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
423 E 23rd St
New York, NY 10010-5011
Phone: (212) 686-7500
Street-level locationGet directions
Mailing address
50 W 34th St
New York, NY 10001-3097
Registry dates
- Enumerated
- 2006-05-17
- Last updated
- 2007-07-08
Frequently asked questions
- What is Jonathan Alex's NPI number?
- Jonathan Alex's National Provider Identifier (NPI) is 1669424305, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jonathan Alex's specialty?
- Jonathan Alex is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Jonathan Alex located?
- Jonathan Alex's practice location on file with NPPES is 423 E 23rd St, New York, NY 10010-5011.
- What is Jonathan Alex's phone number?
- The practice phone number listed in the NPPES registry for Jonathan Alex is (212) 686-7500.
- Is Jonathan Alex's NPI active?
- Yes — Jonathan Alex's NPI (1669424305) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.