MR. CHARLES SOCK LCSW
NPI 1881958379
Social Worker - Clinical in New York, NY
About Mr. Charles Sock Lcsw NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. CHARLES SOCK LCSW (NPI 1881958379) is an individual clinical provider in New York, New York, licensed in New York (064750) and active in the NPI registry since June 2012. He is enrolled in Medicare PECOS and is a graduate of Other (2001).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Mr. Charles Sock Lcsw is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Charles Sock reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
New York, NY 10010
- Reassigned Medicare billing, New York enrollment
- 21 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10009 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 10
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
NEW YORK, NY 10009
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Charles Sock's NPI number?
The NPI number for Charles Sock is 1881958379. It was assigned to this individual provider in the NPPES registry on June 28, 2012.
Where is Charles Sock located?
Charles Sock practices at 743 E 9th St, New York, NY 10009. The listed phone number is (212) 677-7999.
What is Charles Sock's specialty?
The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.
Is Charles Sock enrolled in Medicare?
Yes. Charles Sock is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Charles Sock's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Charles Sock reassigns Medicare benefits to Cassandra Reid LLC (New York, NY). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Charles Sock's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Charles Sock was last updated on June 28, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Mr. Charles Sock, LCSW · NPI 1881958379
Clinical provider in New York, New York. Individual provider, active in the CMS NPPES registry since June 28, 2012.
## Identity
- **NPI:** 1881958379 (Entity type: Individual)
- **Enumerated:** June 28, 2012
- **Primary specialty:** Social Worker - Clinical · taxonomy 1041C0700X
- **State license:** 064750 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 743 E 9TH ST, New York, NY 10009-5335
- **Phone:** (212) 677-7999
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Cassandra Reid LLC (NPI 1396110060, New York, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2001
## Record status
- **NPPES last updated:** June 28, 2012
---
Source: [NPI Profile](https://npiprofile.com/npi/1881958379) · Data from the CMS NPPES public registry.