Provider Profile
Maureen L. O'Brien, PA
Unclaimed ProfileAbout Maureen O'brien
Maureen L. O'Brien, PA is a physician assistant practicing in Annapolis, MD. Maureen is also listed as specializing in physician assistant — surgical. According to Medicare claims data, Maureen cared for 202 Medicare patients across 204 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (443) 481-5300
- Email not available
Practice Locations
2000 MEDICAL PARKWAY SUITE 200
Annapolis, MD 21401
Procedures Most Often Billed to Medicare
204 services · 202 patients · 2 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
181 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
23 |
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 physician assistants at this location 6
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 4
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 — 5 related providers in 1 group
Common questions
What is Maureen L. O'Brien's specialty?
Maureen L. O'Brien is a physician assistant in Annapolis, MD. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Maureen L. O'Brien?
Maureen L. O'Brien is listed at 2000 Medical Parkway Suite 200, Annapolis, MD 21401. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Maureen L. O'Brien?
The number on file is (443) 481-5300. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Maureen L. O'Brien's NPI number?
Maureen L. O'Brien's National Provider Identifier is 1740275148. 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
How long has Maureen L. O'Brien been practicing?
Maureen L. O'Brien has 21+ years experience. Registered with an NPI since 2005. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What is Maureen L. O'Brien known for?
According to Medicare billing data, Maureen L. O'Brien the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Maureen L. O'Brien confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Maureen L. 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.