Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

JOHN PATRICK O'BRIEN MD
NPI 1396072195
Radiology - Diagnostic Radiology in Seattle, WA

Active since November 16, 2009PECOS EnrolledAccepts Medicare Assignment
325 9TH AVE, SEATTLE, WA 98104(206) 744-3561 Get Directions Write a Review

NPPES record last updated: September 29, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About John Patrick O'brien Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JOHN PATRICK O'BRIEN MD (NPI 1396072195) is an individual diagnostic radiology provider in Seattle, Washington, licensed in New York (286896) and active in the NPI registry since November 2009. He is enrolled in Medicare PECOS and is a graduate of Other (1989).

NPPES Registry Identity

NPI1396072195
Entity TypeIndividualMale
Primary Taxonomy2085R0202X
Provider Legal NameJOHN PATRICK O'BRIENCredential: MD
Location Address325 9TH AVESeattle, WA 98104-2420
Mailing AddressPo Box 50095Seattle, WA 98145-5095 · (206) 520-5307
Sole ProprietorNo
Medical School CMSOtherGraduated 1989
Enumeration DateNovember 16, 2009
Last NPPES UpdateSeptember 29, 2026
NPPES CertifiedSeptember 29, 2026
✔ NPI 1396072195 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0202X
Licenses✔ Licensed in NY · 286896✔ Licensed in WA · MD00031261
Definition
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
Also ListedRadiology · Body ImagingTaxonomy 2085B0100X · License MD00031261 (WA)
325 9TH AVE, Seattle, WA 98104

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

John Patrick O'brien 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.

PECOS PAC ID3476692500
PECOS Enrollment IDI20170104000466
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

3

Medicare enrollment records show John O'brien reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Diagnostic Radiology
43 NEW SCOTLAND AVE, MAIL CODE 113
Albany, NY 12208
  • Reassigned Medicare billing, New York enrollment
  • 68 clinicians in this Medicare group
Internal Medicine
139 CENTRE ST STE 711
New York, NY 10013
  • Reassigned Medicare billing, New York enrollment
  • 284 clinicians in this Medicare group
Specialist
49 NESCONSET HWY
Port Jefferson Station, NY 11776
  • Reassigned Medicare billing, New York enrollment
  • 636 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98104 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$97.43 typical visit price
range $63.67 – $189.37
Typical copayment $24.35 (range $15.91 – $47.34)
Most-billed visit code 99203
Established Patient
$78.74 typical visit price
range $21.12 – $155.00
Typical copayment $19.68 (range $5.28 – $38.75)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

Nurse Practitioner (Acute Care)
325 9TH AVE
SEATTLE, WA 98104
Physical Therapist
325 9TH AVE, BOX 359920
SEATTLE, WA 98104
Pharmacist
325 9TH AVE, MAILSTOP 359912
SEATTLE, WA 98104
Social Worker (Clinical)
325 9TH AVE, BOX 359760
SEATTLE, WA 98104
Physician Assistant (Medical)
325 9TH AVE
SEATTLE, WA 98104
Physical Therapist
325 9TH AVE
SEATTLE, WA 98104
Internal Medicine (Infectious Disease)
325 9TH AVE
SEATTLE, WA 98104
Occupational Therapist
325 9TH AVE
SEATTLE, WA 98104

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 John O'brien's NPI number?

The NPI number for John O'brien is 1396072195. It was assigned to this individual provider in the NPPES registry on November 16, 2009.

Where is John O'brien located?

John O'brien practices at 325 9th Ave, Seattle, WA 98104. The listed phone number is (206) 744-3561.

What is John O'brien's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Is John O'brien enrolled in Medicare?

Yes. John O'brien 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 John O'brien's services?

According to the CMS Revalidation Reassignment List (October 2026 release), John O'brien reassigns Medicare benefits to 3 organizations: Albany Medical Center Hospital (Albany, NY), Chinatown True Care Medical PLLC (New York, NY) and North Shore Hematology Oncology Associates PC (Port Jefferson Station, 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 John O'brien's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for John O'brien was last updated on September 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 days 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.