GREGORY MICHAEL O'CONNOR
NPI 1164982872
Radiology - Diagnostic Radiology in Durham, NC
About Gregory Michael O'connor NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GREGORY MICHAEL O'CONNOR (NPI 1164982872) is an individual diagnostic radiology provider in Durham, North Carolina, licensed in North Carolina (2024-01538) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS, is affiliated with St Clare Hospital, and maintains a secondary practice location in Tacoma.
NPPES Registry Identity
Specialties & Licenses
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
Gregory Michael O'connor 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
6Medicare enrollment records show Gregory O'connor reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Durham, NC 27705
- Reassigned Medicare billing, North Carolina enrollment
- Also billed through NPI 1376574798 (North Carolina)
- 1,503 clinicians in this Medicare group
Durham, NC 27710
- Reassigned Medicare billing, North Carolina enrollment
- 3,671 clinicians in this Medicare group
Bonney Lake, WA 98391
- Reassigned Medicare billing, Washington enrollment
- 137 clinicians in this Medicare group
Federal Way, WA 98003
- Reassigned Medicare billing, Washington enrollment
- 137 clinicians in this Medicare group
Tacoma, WA 98405
- Reassigned Medicare billing, Washington enrollment
- 116 clinicians in this Medicare group
Tacoma, WA 98405
- Reassigned Medicare billing, Washington enrollment
- 133 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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
St Clare Hospital
Acute Care Hospitals · Lakewood, WAMulticare Good Samaritan Hospital
Acute Care Hospitals · Puyallup, WASt Joseph Medical Center
Acute Care Hospitals · Tacoma, WATacoma General Allenmore Hospital
Acute Care Hospitals · Tacoma, WASt Anthony Hospital
Acute Care Hospitals · Gig Harbor, WAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 27705 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.
DURHAM, NC 27705
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 Gregory O'connor's NPI number?
The NPI number for Gregory O'connor is 1164982872. It was assigned to this individual provider in the NPPES registry on March 20, 2019.
Where is Gregory O'connor located?
Gregory O'connor practices at 2301 Erwin Rd, Durham, NC 27705. The listed phone number is (919) 684-8111.
What is Gregory O'connor's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Gregory O'connor enrolled in Medicare?
Yes. Gregory 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 Gregory O'connor's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregory O'connor reassigns Medicare benefits to 6 organizations: Duke University Health System, Inc. (Durham, NC), Duke Health Integrated Practice, Inc. (Durham, NC), Medical Imaging Northwest - Good Samaritan Hospital Imaging Alliance (Bonney Lake, WA), Tra-Minw P S (Federal Way, WA), Tra Medical Imaging Centers LLC (Tacoma, WA) and 1 more organization, listed in the Medicare section above. 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 Gregory O'connor's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Gregory O'connor affiliated with any hospitals?
According to CMS data, Gregory O'connor is affiliated with St Clare Hospital, Multicare Good Samaritan Hospital, St Joseph Medical Center, Tacoma General Allenmore Hospital and St Anthony Hospital.
When was this NPI record last updated?
The NPPES record for Gregory O'connor was last updated on April 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Gregory Michael O'connor · NPI 1164982872
Diagnostic Radiology physician in Durham, North Carolina. Individual provider, active in the CMS NPPES registry since March 20, 2019.
## Identity
- **NPI:** 1164982872 (Entity type: Individual)
- **Enumerated:** March 20, 2019
- **Primary specialty:** Radiology - Diagnostic Radiology · taxonomy 2085R0202X
- **State license:** 2024-01538 (North Carolina)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 2301 ERWIN RD, Durham, NC 27705-4699
- **Phone:** (919) 684-8111
## 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:** 6 organizations under Medicare reassignment (form CMS-855R): Duke University Health System, Inc. (NPI 1497912232, Durham, NC); Duke Health Integrated Practice, Inc. (NPI 1205553369, Durham, NC); Medical Imaging Northwest - Good Samaritan Hospital Imaging Alliance (NPI 1699063354, Bonney Lake, WA); Tra-Minw P S (NPI 1184790032, Federal Way, WA); Tra Medical Imaging Centers LLC (NPI 1447041751, Tacoma, WA); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2014
## Record status
- **NPPES last updated:** April 16, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1164982872) · Data from the CMS NPPES public registry.