OWEN A O'CONNOR MD
NPI 1245201052
Internal Medicine - Medical Oncology in New York, NY
About Owen A O'connor Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
OWEN A O'CONNOR MD (NPI 1245201052) is an individual medical oncology provider in New York, New York, licensed in New York (203055) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS, is affiliated with White Plains Hospital Center, and is a graduate of Rutgers New Jersey Medical School (1994).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
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
Owen A O'connor 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 Owen O'connor 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 10032
- Reassigned Medicare billing, New York enrollment
- 612 clinicians in this Medicare group
New York, NY 10032
- Reassigned Medicare billing, New York enrollment
- Also billed through NPI 1982993184 (New York)
- 3,922 clinicians in this Medicare group
White Plains, NY 10601
- Reassigned Medicare billing, New York enrollment
- 17 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 3
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.
White 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 20
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 Owen O'connor's NPI number?
The NPI number for Owen O'connor is 1245201052. It was assigned to this individual provider in the NPPES registry on January 30, 2006.
Where is Owen O'connor located?
Owen O'connor practices at 1275 York Ave, New York, NY 10021. The listed phone number is (646) 227-3813.
What is Owen O'connor's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.
Is Owen O'connor enrolled in Medicare?
Yes. Owen O'connor 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 Owen O'connor's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Owen O'connor reassigns Medicare benefits to 3 organizations: Trustees Of Columbia University In The City Of New York (New York, NY), Trustees Of Columbia University In The City Of New York (New York, NY) and Cancer And Blood Medical Services Of New York PC (White Plains, 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 Owen O'connor's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Owen O'connor affiliated with any hospitals?
According to CMS data, Owen O'connor is affiliated with White Plains Hospital Center.
When was this NPI record last updated?
The NPPES record for Owen O'connor was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# Owen A O'connor, MD · NPI 1245201052
Medical Oncology physician in New York, New York. Individual provider, active in the CMS NPPES registry since January 30, 2006.
## Identity
- **NPI:** 1245201052 (Entity type: Individual)
- **Enumerated:** January 30, 2006
- **Primary specialty:** Internal Medicine - Medical Oncology · taxonomy 207RX0202X
- **State license:** 203055 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 1275 YORK AVE, New York, NY 10021-6007
- **Phone:** (646) 227-3813
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Trustees Of Columbia University In The City Of New York (NPI 1437176047, New York, NY); Trustees Of Columbia University In The City Of New York (NPI 1477068971, New York, NY); Cancer And Blood Medical Services Of New York PC (NPI 1396087888, White Plains, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Rutgers New Jersey Medical School, class of 1994
## Record status
- **NPPES last updated:** July 8, 2007
- **Other identifiers:** Medicare UPIN H12237; Medicare ID-Type Unspecified 58C351
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Source: [NPI Profile](https://npiprofile.com/npi/1245201052) · Data from the CMS NPPES public registry.