Provider Profile
Marina O'Brien, PA-C
Unclaimed ProfileAbout Marina O'brien
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Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (414) 672-1353
- Email not available
Practice Locations
2906 S 20TH ST
Milwaukee, WI 53215
1032 S Cesar E Chavez Dr
Milwaukee, WI 53204
1635 W National Ave
Milwaukee, WI 53204
4570 S 27th St
Milwaukee, WI 53221
309 E North St
Waukesha, WI 53188
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 physician assistants at this location 4
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
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 — 24 related providers in 3 groups
Other physician assistants in Milwaukee 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2025 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What kind of doctor is Marina O'Brien?
Marina O'Brien is a physician assistant in Milwaukee, WI. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Marina O'Brien's address?
Marina O'Brien is listed at 2906 S 20Th St, Milwaukee, WI 53215. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Marina O'Brien?
The number on file is (414) 672-1353. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Marina O'Brien?
Marina O'Brien's National Provider Identifier is 1932923489. 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 Marina O'Brien train?
Marina O'Brien attended Other, graduating in 2025. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Marina O'Brien have?
Marina O'Brien has 1 year experience. Calculated from a graduation year of 2025, reported in the CMS National Downloadable File.
CMS public data
Is Marina O'Brien's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Marina O'Brien. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.