IRENA GARIST MD
NPI 1679764815
Anesthesiology in East Meadow, NY
About Irena Garist Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
IRENA GARIST MD (NPI 1679764815) is an individual anesthesiology provider in East Meadow, New York, licensed in New York (245173) and active in the NPI registry since August 2007. She is enrolled in Medicare PECOS, is affiliated with Nassau University Medical Center, and is a graduate of Other (1986).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
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
Irena Garist 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 Reassignments
2Medicare enrollment records show Irena Garist reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
East Meadow, NY 11554
- Reassigned Medicare billing, New York enrollment
- 553 clinicians in this Medicare group
East Meadow, NY 11554
- Reassigned Medicare billing, New York enrollment
- 141 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Nassau University Medical Center
Acute Care Hospitals · East Meadow, NYMedicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
EAST MEADOW, NY 11554
EAST MEADOW, NY 11554
EAST MEADOW, NY 11554
EAST MEADOW, NY 11554
EAST MEADOW, NY 11554
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 Irena Garist's NPI number?
The NPI number for Irena Garist is 1679764815. It was assigned to this individual provider in the NPPES registry on August 5, 2007.
Where is Irena Garist located?
Irena Garist practices at 2201 Hempstead Tpke, East Meadow, NY 11554. The listed phone number is (516) 572-6131.
What is Irena Garist's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Irena Garist enrolled in Medicare?
Yes. Irena Garist 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 organizations bill Medicare for Irena Garist's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Irena Garist reassigns Medicare benefits to 2 organizations: Nassau Health Care Corporation (East Meadow, NY) and Upstate Anesthesia Services, P.C. (East Meadow, NY). Each 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 Irena Garist's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Irena Garist affiliated with any hospitals?
According to CMS data, Irena Garist is affiliated with Nassau University Medical Center.
When was this NPI record last updated?
The NPPES record for Irena Garist was last updated on March 20, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# Irena Garist, MD · NPI 1679764815
Anesthesiology physician in East Meadow, New York. Individual provider, active in the CMS NPPES registry since August 5, 2007.
## Identity
- **NPI:** 1679764815 (Entity type: Individual)
- **Enumerated:** August 5, 2007
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 245173 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 2201 HEMPSTEAD TPKE, East Meadow, NY 11554-1859
- **Phone:** (516) 572-6131
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Nassau Health Care Corporation (NPI 1003832098, East Meadow, NY); Upstate Anesthesia Services, P.C. (NPI 1629272141, East Meadow, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1986
## Record status
- **NPPES last updated:** March 20, 2015
- **Other identifiers:** Other 245173; Medicaid 02913142 (NY); Other 11-3465690
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Source: [NPI Profile](https://npiprofile.com/npi/1679764815) · Data from the CMS NPPES public registry.