Physician Profile
Patricia O'Sullivan, M.D.
Unclaimed ProfileAbout Dr. O'sullivan
Patricia O'Sullivan, M.D. is a healthcare provider in Oakdale, NY specializing in obstetrics. Patricia trained at State University of New York at Stony Brook, School of Medicine, graduating in 1994. Patricia is also listed as specializing in obstetrics & gynecology and gynecology. According to Medicare claims data, Patricia cared for 550 Medicare patients across 599 services. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, cervical or vaginal cancer screening; pelvic and clinical breast examination, and screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory.
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
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
- (631) 589-4344
- Email not available
Practice Locations
971 MONTAUK HWY
Oakdale, NY 11769
Procedures Most Often Billed to Medicare
599 services · 550 patients · 7 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
191 | More than most peers in Obstetrics |
| Cervical or vaginal cancer screening; pelvic and clinical breast examination | Billing code | G0101 |
169 | More than most peers in Obstetrics |
| Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory | Billing code | Q0091 |
112 | More than most peers in Obstetrics |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
66 | More often than most peers in Obstetrics |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
26 | More often than most peers in Obstetrics |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
20 | More often than most peers in Obstetrics |
| Automated urinalysis test | Lab test | 81003 |
15 | Less often than most peers in Obstetrics |
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 obstetricses at this location 3
Same specialty, same street address — most likely the same department or group.
Also at this address 3
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Trained at State University of New York at Stony Brook, School of Medicine 1
Other providers in the same specialty who trained at the same institution.
More connections — 7 related providers in 1 group
Class of 1994 at State University of New York at Stony Brook, School of Medicine 7
Providers who graduated from the same medical school in the same year.
Common questions
What is Patricia O'Sullivan's specialty?
Patricia O'Sullivan is an obstetrics in Oakdale, NY. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Patricia O'Sullivan?
Patricia O'Sullivan is listed at 971 Montauk Hwy, Oakdale, NY 11769. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Patricia O'Sullivan?
The number on file is (631) 589-4344. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Patricia O'Sullivan's NPI number?
Patricia O'Sullivan's National Provider Identifier is 1891718508. 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
What is Patricia O'Sullivan's education?
Patricia O'Sullivan attended State University of New York at Stony Brook, School of Medicine, graduating in 1994. This comes from the CMS National Downloadable File.
CMS public data
How long has Patricia O'Sullivan been practicing?
Patricia O'Sullivan has 32 years experience. Calculated from a graduation year of 1994, reported in the CMS National Downloadable File.
CMS public data
What is Patricia O'Sullivan known for?
According to Medicare billing data, Patricia O'Sullivan 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 Patricia O'Sullivan confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Patricia O'Sullivan. 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.