KEIR ALEXANDER ROSS
NPI 1245727122
Orthopaedic Surgery in New York, NY
About Keir Alexander Ross NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KEIR ALEXANDER ROSS (NPI 1245727122) is an individual orthopaedic surgery provider in New York, New York, licensed in New York (322569) and active in the NPI registry since April 2018. He is enrolled in Medicare PECOS, is affiliated with Lenox Hill Hospital, and is a graduate of University Of Maryland School Of Medicine (2018).
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
Keir Alexander Ross 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 Reassignment
Medicare enrollment records show Keir Ross reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
New York, NY 10021
- Reassigned Medicare billing, New York enrollment
- 22 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 2
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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Lenox Hill Hospital
Acute Care Hospitals · New York, NYBellevue Hospital Center
Acute Care Hospitals · New York, NYNyu Langone Hospitals
Acute Care Hospitals · New York, NYHospital For Special Surgery
Acute Care Hospitals · New York, NYWhite Plains Hospital Center
Acute Care Hospitals · White Plains, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10021 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
NEW YORK, NY 10021
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 Keir Ross's NPI number?
The NPI number for Keir Ross is 1245727122. It was assigned to this individual provider in the NPPES registry on April 17, 2018.
Where is Keir Ross located?
Keir Ross practices at 159 E 74th St Fl 2, New York, NY 10021. The listed phone number is (212) 737-3301.
What is Keir Ross's specialty?
The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.
Is Keir Ross enrolled in Medicare?
Yes. Keir Ross 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 organization bills Medicare for Keir Ross's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Keir Ross reassigns Medicare benefits to Stephen J Nicholas MD PC (New York, NY). The 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 Keir Ross's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Keir Ross affiliated with any hospitals?
According to CMS data, Keir Ross is affiliated with Lenox Hill Hospital, Bellevue Hospital Center, Nyu Langone Hospitals, Hospital For Special Surgery and White Plains Hospital Center.
When was this NPI record last updated?
The NPPES record for Keir Ross was last updated on March 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.
# Keir Alexander Ross · NPI 1245727122
Orthopaedic Surgery physician in New York, New York. Individual provider, active in the CMS NPPES registry since April 17, 2018.
## Identity
- **NPI:** 1245727122 (Entity type: Individual)
- **Enumerated:** April 17, 2018
- **Primary specialty:** Orthopaedic Surgery · taxonomy 207X00000X
- **State license:** 322569 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 159 E 74TH ST FL 2, New York, NY 10021-3309
- **Phone:** (212) 737-3301
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Stephen J Nicholas MD PC (NPI 1316933872, New York, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Maryland School Of Medicine, class of 2018
## Record status
- **NPPES last updated:** March 4, 2025
---
Source: [NPI Profile](https://npiprofile.com/npi/1245727122) · Data from the CMS NPPES public registry.