DR. GILLIAN PEREZ MD
NPI 1184328668
Family Medicine in Florida, NY
About Dr. Gillian Perez Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. GILLIAN PEREZ MD (NPI 1184328668) is an individual family medicine provider in Florida, New York, licensed in New York (344850) and active in the NPI registry since March 2023. She is enrolled in Medicare PECOS and is a graduate of City University Of New York School Of Medicine (2023).
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
Dr. Gillian Perez Md 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 Gillian Perez reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Goshen, NY 10924
- Reassigned Medicare billing, New York enrollment
- Medicare enrollment name: Horizon Medical Group PC
- 98 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 10921 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 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Gillian Perez's NPI number?
The NPI number for Gillian Perez is 1184328668. It was assigned to this individual provider in the NPPES registry on March 28, 2023.
Where is Gillian Perez located?
Gillian Perez practices at 21 Edward J Lempka Dr, Florida, NY 10921. The listed phone number is (845) 651-1777.
What is Gillian Perez's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Gillian Perez enrolled in Medicare?
Yes. Gillian Perez 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 Gillian Perez's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gillian Perez reassigns Medicare benefits to Horizon Medical Group, P.C. (Goshen, 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 Gillian Perez'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 Gillian Perez was last updated on September 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months 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.
# Dr. Gillian Perez, MD · NPI 1184328668
Family Medicine physician in Florida, New York. Individual provider, active in the CMS NPPES registry since March 28, 2023.
## Identity
- **NPI:** 1184328668 (Entity type: Individual)
- **Enumerated:** March 28, 2023
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 344850 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 21 EDWARD J LEMPKA DR, Florida, NY 10921-1036
- **Phone:** (845) 651-1777 · **Fax:** (845) 651-3299
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Horizon Medical Group, P.C. (NPI 1063488179, Goshen, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** City University Of New York School Of Medicine, class of 2023
## Record status
- **NPPES last updated:** September 5, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1184328668) · Data from the CMS NPPES public registry.