Bonnie Lang, LCSW
NPI 1598809121 · Clinical Social Worker · Stony Brook, NY
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Bonnie Lang, LCSW is a Clinical Social Worker provider in Stony Brook, NY (NPI 1598809121).
Provider details
- NPI number
- 1598809121
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- Yes
- License
- R019517 (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
19 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
- 2007-02-16
- Last updated
- 2007-07-08
Frequently asked questions
- What is Bonnie Lang's NPI number?
- Bonnie Lang's National Provider Identifier (NPI) is 1598809121, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Bonnie Lang's specialty?
- Bonnie Lang is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Bonnie Lang located?
- Bonnie Lang's practice location on file with NPPES is 3 Mystic Ct, Stony Brook, NY 11790-2920.
- What is Bonnie Lang's phone number?
- The practice phone number listed in the NPPES registry for Bonnie Lang is (631) 751-0058.
- Does Bonnie Lang accept Medicare?
- Bonnie Lang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Bonnie Lang's NPI active?
- Yes — Bonnie Lang's NPI (1598809121) 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.