Physician Profile
Unclaimed ProfileAbout O'BRIEN
Based in Milwaukee, WI, Daniel O'Brien, M.D. is listed in the NPI registry under general surgery. Daniel graduated from Northwestern University Feinberg Medical School in 2016. Daniel is also listed as specialising in transplant surgery, surgery, and student in an organized health care education program.
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 does Dr. O'Brien specialise in?
Dr. O'Brien is a general surgeon in Milwaukee, WI. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “GENERAL SURGERY”.
NPI registry
Where is Dr. O'Brien located?
Dr. O'Brien is listed at 2900 W OKLAHOMA AVE, Milwaukee, WI 53215. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. O'Brien's phone number?
The number on file is (414) 649-6000. 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 1548659980. 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 go to medical school?
Dr. O'Brien attended Northwestern University Feinberg Medical School, graduating in 2016. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. O'Brien been practising?
Dr. O'Brien has 10 years experience. Calculated from a graduation year of 2016, reported in the CMS National Downloadable File.
CMS public data
What does Dr. O'Brien do most often?
According to Medicare billing data, Dr. O'Brien performs procedures including transplantation of donor kidney, insertion of stent in ureter and preparation of donor kidney for transplantation, 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
- (414) 649-6000
- Email not available
Practice Locations
2900 W OKLAHOMA AVE
Milwaukee, WI 53215
Procedures Most Often Billed to Medicare
375 services · 189 patients · 7 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Transplantation of donor kidney | Procedure | 50360 |
14 |
| Insertion of stent in ureter | Procedure | 50605 |
13 |
| Preparation of donor kidney for transplantation | Procedure | 50323 |
13 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
129 |
| Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient' | Billing code | G2211 |
103 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
88 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
15 |
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.
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.
Other general surgeons in Milwaukee 8
Same specialty, same city.
Trained at Northwestern University Feinberg Medical School 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 2016 at Northwestern University Feinberg Medical School 8
Providers who graduated from the same medical school in the same year.
Also performs Transplantation of donor kidney 8
Providers in WI 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.