AMY BETH GRUEN D.O.
NPI 1316054588
Anesthesiology in Stony Brook, NY
About Amy Beth Gruen D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
AMY BETH GRUEN D.O. (NPI 1316054588) is an individual anesthesiology provider in Stony Brook, New York, licensed in Florida (OS 9910) and active in the NPI registry since August 2006. She is enrolled in Medicare PECOS and is a graduate of Rowan University School Of Osteopathic Medicine (2002).
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
Amy Beth Gruen D.o. 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 Amy Gruen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
West Islip, NY 11795
- Reassigned Medicare billing, New York enrollment
- 67 clinicians in this Medicare group
Massapequa, NY 11758
- Reassigned Medicare billing, New York enrollment
- 223 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
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
STONY BROOK, NY 11794
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 Amy Gruen's NPI number?
The NPI number for Amy Gruen is 1316054588. It was assigned to this individual provider in the NPPES registry on August 24, 2006.
Where is Amy Gruen located?
Amy Gruen practices at Stony Brook Anesthesiology Ufpc Health Science Center Level 4 #060, Stony Brook, NY 11794. The listed phone number is (631) 444-2975.
What is Amy Gruen's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Amy Gruen enrolled in Medicare?
Yes. Amy Gruen 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 Amy Gruen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Amy Gruen reassigns Medicare benefits to 2 organizations: Long Island Anesthesiologists, PLLC (West Islip, NY) and Gastrointestinal Care Of Long Island PLLC (Massapequa, 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 Amy Gruen'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 Amy Gruen was last updated on November 4, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.