DR. ALEXANDER MAYER D.O.
NPI 1023278041
Internal Medicine - Interventional Cardiology in New York, NY
About Dr. Alexander Mayer D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ALEXANDER MAYER D.O. (NPI 1023278041) is an individual interventional cardiology provider in New York, New York, licensed in New York (249610) and active in the NPI registry since June 2008. He is enrolled in Medicare PECOS, is affiliated with Mount Sinai St Luke's Roosevelt Hospital, and maintains a secondary practice location in New York.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
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 Mayer 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
3Medicare enrollment records show Alexander Mayer reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
New York, NY 10016
- Reassigned Medicare billing, New York enrollment
- 346 clinicians in this Medicare group
New York, NY 10011
- Reassigned Medicare billing, New York enrollment
- Also billed through NPI 1487912416 (New York)
- 309 clinicians in this Medicare group
Carrollton, GA 30117
- Reassigned Medicare billing, Georgia enrollment
- 232 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 25
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.
Mount Sinai St Luke's Roosevelt Hospital
Acute Care Hospitals · New York, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10010 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Mayer's NPI number?
The NPI number for Alexander Mayer is 1023278041. It was assigned to this individual provider in the NPPES registry on June 12, 2008.
Where is Alexander Mayer located?
Alexander Mayer practices at 147 E 26th St Fl 2, New York, NY 10010. The listed phone number is (212) 870-9497.
What is Alexander Mayer's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Interventional Cardiology, with taxonomy code 207RI0011X.
Is Alexander Mayer enrolled in Medicare?
Yes. Alexander Mayer 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 Mayer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alexander Mayer reassigns Medicare benefits to 3 organizations: Icahn School Of Medicine At Mount Sinai (New York, NY), Icahn School Of Medicine At Mount Sinai (New York, NY) and Tanner Medical Group Inc (Carrollton, GA). 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 Mayer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Alexander Mayer affiliated with any hospitals?
According to CMS data, Alexander Mayer is affiliated with Mount Sinai St Luke's Roosevelt Hospital.
When was this NPI record last updated?
The NPPES record for Alexander Mayer was last updated on November 22, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.