Jonathan Marx, LCSW
NPI 1699498097 · Clinical Social Worker · Fpo
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jonathan Marx, LCSW is a Clinical Social Worker provider in Fpo (NPI 1699498097).
Provider details
- NPI number
- 1699498097
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Male
- Sole proprietor
- No
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
3 yrs in NPPES registry
- Profile completeness38% of score
67% 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
- 2022-09-21
- Last updated
- 2025-10-23
- Certified
- 2025-10-23
Frequently asked questions
- What is Jonathan Marx's NPI number?
- Jonathan Marx's National Provider Identifier (NPI) is 1699498097, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jonathan Marx's specialty?
- Jonathan Marx is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Jonathan Marx located?
- Jonathan Marx's practice location on file with NPPES is Psc 851 Box 340, Fpo, 09834-0004.
- What is Jonathan Marx's phone number?
- The practice phone number listed in the NPPES registry for Jonathan Marx is (999) 999-9999.
- Does Jonathan Marx accept Medicare?
- Jonathan Marx is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jonathan Marx's NPI active?
- Yes — Jonathan Marx's NPI (1699498097) is active in the NPPES registry as of the last update on 2025-10-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.