GWENDOLYN SULLIVAN
NPI 1730716754
Counselor - Mental Health in Yorktown Heights, NY
About Gwendolyn Sullivan NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GWENDOLYN SULLIVAN (NPI 1730716754) is an individual mental health provider in Yorktown Heights, New York, licensed in New York (009625) and active in the NPI registry since March 2020. She is enrolled in Medicare PECOS and is a graduate of Other (2015).
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 (PECOS)
Gwendolyn Sullivan is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Gwendolyn Sullivan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Carmel, NY 10512
- Reassigned Medicare billing, New York enrollment
- 296 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.
Other Providers at the Same Location NPPES 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
YORKTOWN HEIGHTS, NY 10598
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 Gwendolyn Sullivan's NPI number?
The NPI number for Gwendolyn Sullivan is 1730716754. It was assigned to this individual provider in the NPPES registry on March 27, 2020.
Where is Gwendolyn Sullivan located?
Gwendolyn Sullivan practices at 1940 Commerce St Ste 300, Yorktown Heights, NY 10598. The listed phone number is (914) 245-0437.
What is Gwendolyn Sullivan's specialty?
The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.
Is Gwendolyn Sullivan enrolled in Medicare?
Yes. Gwendolyn Sullivan is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Gwendolyn Sullivan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gwendolyn Sullivan reassigns Medicare benefits to Carmel Psychological Health, PC (Carmel, 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 Gwendolyn Sullivan'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 Gwendolyn Sullivan was last updated on March 27, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Gwendolyn Sullivan · NPI 1730716754
Mental Health provider in Yorktown Heights, New York. Individual provider, active in the CMS NPPES registry since March 27, 2020.
## Identity
- **NPI:** 1730716754 (Entity type: Individual)
- **Enumerated:** March 27, 2020
- **Primary specialty:** Counselor - Mental Health · taxonomy 101YM0800X
- **State license:** 009625 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 1940 COMMERCE ST STE 300, Yorktown Heights, NY 10598-4448
- **Phone:** (914) 245-0437
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Carmel Psychological Health, PC (NPI 1720194335, Carmel, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2015
## Record status
- **NPPES last updated:** March 27, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1730716754) · Data from the CMS NPPES public registry.