Jo Grellong, LCSW
NPI 1023101441 · Clinical Social Worker · New York, NY
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jo Grellong, LCSW is a Clinical Social Worker provider in New York, NY (NPI 1023101441).
Provider details
- NPI number
- 1023101441
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- Yes
- License
- PR014231-1 (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
- 2006-09-30
- Last updated
- 2016-07-09
Frequently asked questions
- What is Jo Grellong's NPI number?
- Jo Grellong's National Provider Identifier (NPI) is 1023101441, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jo Grellong's specialty?
- Jo Grellong is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Jo Grellong located?
- Jo Grellong's practice location on file with NPPES is 205 W 89th St, New York, NY 10024-1838.
- What is Jo Grellong's phone number?
- The practice phone number listed in the NPPES registry for Jo Grellong is (212) 595-1788.
- Does Jo Grellong accept Medicare?
- Jo Grellong is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jo Grellong's NPI active?
- Yes — Jo Grellong's NPI (1023101441) is active in the NPPES registry as of the last update on 2016-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.