DR. ALEXANDER TELIS MD
NPI 1508022088
Internal Medicine in Great Neck, NY
About Dr. Alexander Telis Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ALEXANDER TELIS MD (NPI 1508022088) is an individual internal medicine provider in Great Neck, New York, licensed in New York (244197) and active in the NPI registry since August 2008. He is enrolled in Medicare PECOS, is affiliated with Mercy Medical Center, and is a graduate of Other (2004).
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 Telis 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
3Medicare enrollment records show Alexander Telis reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Rockville Centre, NY 11571
- Reassigned Medicare billing, New York enrollment
- 266 clinicians in this Medicare group
Rockville Centre, NY 11571
- Reassigned Medicare billing, New York enrollment
- 30 clinicians in this Medicare group
Long Island City, NY 11102
- Reassigned Medicare billing, New York enrollment
- 69 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 8
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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mercy Medical Center
Acute Care Hospitals · Rockville Centre, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11021 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.
Referred Medical Equipment & Supplies CMS DME claims 5
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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 Telis's NPI number?
The NPI number for Alexander Telis is 1508022088. It was assigned to this individual provider in the NPPES registry on August 4, 2008.
Where is Alexander Telis located?
Alexander Telis practices at 46 Schenck Ave Apt. 2E, Great Neck, NY 11021. The listed phone number is (347) 782-1448.
What is Alexander Telis's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Alexander Telis enrolled in Medicare?
Yes. Alexander Telis 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 Telis's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alexander Telis reassigns Medicare benefits to 3 organizations: Mercy Medical Center (Rockville Centre, NY), Mercy Internal Medicine PC (Rockville Centre, NY) and The Mount Sinai Hospital (Long Island City, 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 Telis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Alexander Telis affiliated with any hospitals?
According to CMS data, Alexander Telis is affiliated with Mercy Medical Center.
When was this NPI record last updated?
The NPPES record for Alexander Telis was last updated on August 4, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.