DR. ALEXANDER LLINAS M.D., PH.D.
NPI 1194900365
Ophthalmology in East Setauket, NY
About Dr. Alexander Llinas M.d., Ph.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ALEXANDER LLINAS M.D., PH.D. (NPI 1194900365) is an individual ophthalmology provider in East Setauket, New York, licensed in New York (246078) and active in the NPI registry since January 2008. He is enrolled in Medicare PECOS and is a graduate of New York University School Of 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
Dr. Alexander Llinas M.d., Ph.d. 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 Alexander Llinas reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
East Setauket, NY 11733
- Reassigned Medicare billing, New York enrollment
- Medicare enrollment name: Vincent P Basilice MD PC
- 5 clinicians in this Medicare group
Hauppauge, NY 11788
- Reassigned Medicare billing, New York enrollment
- 164 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.
Areas of Expertise CMS Part B claims 13
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11733 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare 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.
Reported Quality Measures
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 SETAUKET, NY 11733
EAST SETAUKET, NY 11733
EAST SETAUKET, NY 11733
EAST SETAUKET, NY 11733
EAST SETAUKET, NY 11733
EAST SETAUKET, NY 11733
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 Alexander Llinas's NPI number?
The NPI number for Alexander Llinas is 1194900365. It was assigned to this individual provider in the NPPES registry on January 7, 2008.
Where is Alexander Llinas located?
Alexander Llinas practices at 3400 Nesconset Hwy Suite 107, East Setauket, NY 11733. The listed phone number is (631) 751-2020.
What is Alexander Llinas's specialty?
The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.
Is Alexander Llinas enrolled in Medicare?
Yes. Alexander Llinas 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 Alexander Llinas's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alexander Llinas reassigns Medicare benefits to 2 organizations: Vincent P Basilice M D P C (East Setauket, NY) and Sight Medical Doctors PLLC (Hauppauge, 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 Alexander Llinas'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 Alexander Llinas was last updated on June 27, 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.