Physician Profile
Unclaimed ProfileAbout O'BRIEN
Based in Missoula, MT, Patrick Joshua O'Brien, MD is listed in the NPI registry under vascular surgery. Patrick graduated from Jc Edwards School of Medicine, Marshall University in 2004.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What kind of doctor is Dr. O'Brien?
Dr. O'Brien is a vascular surgeon in Missoula, MT. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “VASCULAR SURGERY”.
NPI registry
What is Dr. O'Brien's address?
Dr. O'Brien is listed at 500 W BROADWAY ST STE 320, Missoula, MT 59802. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. O'Brien?
The number on file is (406) 329-5615. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. O'Brien's NPI number?
Dr. O'Brien's National Provider Identifier is 1942414040. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. O'Brien train?
Dr. O'Brien attended Jc Edwards School of Medicine, Marshall University, graduating in 2004. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. O'Brien been practising?
Dr. O'Brien has 22 years experience. Calculated from a graduation year of 2004, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. O'Brien perform?
According to Medicare billing data, Dr. O'Brien provides treatments such as ultrasound of both sides of head and neck blood flow and ultrasound study of arm and leg arteries, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. O'Brien confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. O'Brien. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (406) 329-5615
- Email not available
Practice Locations
500 W BROADWAY ST STE 320
Missoula, MT 59802
Procedures Most Often Billed to Medicare
695 services · 657 patients · 18 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Ultrasound of both sides of head and neck blood flow | Treatment | 93880 |
153 |
| Ultrasound study of arm and leg arteries | Treatment | 93922 |
85 |
| Complete ultrasound of aorta, vena cava, groin vessels or bypass grafts | Treatment | 93978 |
53 |
| Ultrasound of one leg arteries or artery grafts | Treatment | 93926 |
31 |
| Ultrasound of hemodialysis access | Treatment | 93990 |
19 |
| Ultrasound study of one arm or leg veins with compression and maneuvers | Treatment | 93971 |
16 |
| Complete ultrasound of abdomen and pelvis artery and vein blood flow | Treatment | 93975 |
14 |
| Ultrasound study of arm or leg veins with compression and maneuvers | Treatment | 93970 |
12 |
| Ultrasound of leg arteries or artery grafts | Treatment | 93925 |
12 |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
79 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other vascular surgeons at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 21 related providers in 4 groups
Trained at Jc Edwards School of Medicine, Marshall University 6
Other providers in the same specialty who trained at the same institution.
Class of 2004 at Jc Edwards School of Medicine, Marshall University 8
Providers who graduated from the same medical school in the same year.
Also performs Ultrasound of both sides of head and neck blood flow 6
Providers in MT who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.