What is Brendan O'Connor's NPI number?

Brendan O'Connor's National Provider Identifier (NPI) is 1245467257, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Brendan O'Connor's specialty?

Brendan O'Connor is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).

Where is Brendan O'Connor located?

Brendan O'Connor's practice location on file with NPPES is Naval Medical Center Portsmouth, Portsmouth, VA 23708.

What is Brendan O'Connor's phone number?

The practice phone number listed in the NPPES registry for Brendan O'Connor is (757) 953-7550.

Does Brendan O'Connor accept Medicare?

Brendan O'Connor is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Brendan O'Connor's NPI active?

Yes — Brendan O'Connor's NPI (1245467257) is active in the NPPES registry as of the last update on 2021-04-13.

IndividualActiveAccepts Medicare

Brendan O'Connor, M.D.

NPI 1245467257 · Diagnostic Radiology Physician · Portsmouth, VA

Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Brendan O'Connor, M.D. is a Diagnostic Radiology Physician provider in Portsmouth, VA (NPI 1245467257).

Provider details

NPI number: 1245467257
Entity type: Individual
Primary specialty: Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Male
Sole proprietor: No

Specialties & taxonomies

Diagnostic Radiology PhysicianPrimary2085R0202XLicense 0101248034 (VA)
Allopathic & Osteopathic Physicians
Student in an Organized Health Care Education/Training Program390200000X
Student, Health Care

Profile Score

Established profile(74/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure25% of score
17 yrs in NPPES registry
Profile completeness25% of score
83% of core fields populated
Practice footprint15% of score
6 documented practice locations
Medicare service volume (vs. specialty peers)25% of score
1,396 Medicare services, 2024 (ranked within specialty)
Open Payments transparency10% of score
Has Open Payments disclosures (2024)

Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
X-Ray of Chest, 2 Views71046	231	$10
Screening Mammography77067	213	$34
Screening 3d Breast Mammography77063	211	$27
X-Ray of Chest, 1 View71045	94	$8
Ct Scan of Abdomen and Pelvis With Contrast74177	54	$79
Diagnostic Digital Breast Tomosynthesis, Unilateral Or Bilateral (list Separately in Addition to 77065 Or 77066)G0279	54	$27

Transparency — industry payments

Based on CMS Open Payments, 2024; not all care is captured.

$20 across 1 record (Open Payments 2024)

Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.

Practice location

Naval Medical Center Portsmouth

620 John Paul Jones Circle

Portsmouth, VA 23708

Phone: (757) 953-7550

Approximate (ZIP-level) locationGet directions

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Mailing address