ALEXANDER I GEYER M.D.
NPI 1083631444
Internal Medicine - Pulmonary Disease in New York, NY
About Alexander I Geyer M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALEXANDER I GEYER M.D. (NPI 1083631444) is an individual pulmonary disease provider in New York, New York, licensed in Ohio (254170) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Lenox Hill Hospital, and is a graduate of Other (2003).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
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
Alexander I Geyer M.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
3Medicare enrollment records show Alexander Geyer 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 10065
- Reassigned Medicare billing, New York enrollment
- 34 clinicians in this Medicare group
New York, NY 10021
- Reassigned Medicare billing, New York enrollment
- 482 clinicians in this Medicare group
Cleveland, OH 44195
- Reassigned Medicare billing, Ohio enrollment
- 7,608 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 20
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Lenox Hill Hospital
Acute Care Hospitals · New York, NYCleveland Clinic
Acute Care Hospitals · Cleveland, OHHillcrest Hospital
Acute Care Hospitals · Mayfield Heights, OHPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10065 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 9
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
NEW YORK, NY 10065
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 Geyer's NPI number?
The NPI number for Alexander Geyer is 1083631444. It was assigned to this individual provider in the NPPES registry on July 15, 2006.
Where is Alexander Geyer located?
Alexander Geyer practices at 1275 York Ave, New York, NY 10065. The listed phone number is (212) 639-7588.
What is Alexander Geyer's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.
Is Alexander Geyer enrolled in Medicare?
Yes. Alexander Geyer 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 Geyer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alexander Geyer reassigns Medicare benefits to 3 organizations: Memorial Pulmonary Function Group (New York, NY), Memorial Anesthesiology Group (New York, NY) and The Cleveland Clinic Foundation (Cleveland, OH). 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 Geyer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Alexander Geyer accept?
Health plans from Anthem Blue Cross and Blue Shield and Oscar Insurance Corporation of Ohio list Alexander Geyer as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Alexander Geyer affiliated with any hospitals?
According to CMS data, Alexander Geyer is affiliated with Lenox Hill Hospital, Cleveland Clinic and Hillcrest Hospital.
When was this NPI record last updated?
The NPPES record for Alexander Geyer was last updated on August 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months 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.