Jon Marrelli, PSY. D.
NPI 1689845893 · Clinical Psychologist · Brooklyn, NY
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jon Marrelli, PSY. D. is a Clinical Psychologist provider in Brooklyn, NY (NPI 1689845893).
Provider details
- NPI number
- 1689845893
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PSY. D.
- Sex
- Male
- Sole proprietor
- No
- License
- 017437 (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
18 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
- 2008-03-14
- Last updated
- 2021-08-13
- Certified
- 2021-08-13
Frequently asked questions
- What is Jon Marrelli's NPI number?
- Jon Marrelli's National Provider Identifier (NPI) is 1689845893, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jon Marrelli's specialty?
- Jon Marrelli is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Jon Marrelli located?
- Jon Marrelli's practice location on file with NPPES is 514 49th St, Brooklyn, NY 11220-2010.
- What is Jon Marrelli's phone number?
- The practice phone number listed in the NPPES registry for Jon Marrelli is (718) 854-1851.
- Does Jon Marrelli accept Medicare?
- Jon Marrelli is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jon Marrelli's NPI active?
- Yes — Jon Marrelli's NPI (1689845893) is active in the NPPES registry as of the last update on 2021-08-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.