Physician Profile
Unclaimed ProfileAbout Mary O'brien
Mary Alice O'Brien, FNP is a nurse practitioner practicing in Vestal, NY. Mary is also listed as specializing in registered nurse. According to Medicare claims data, Mary cared for 238 Medicare patients across 240 services.
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
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (607) 658-1003
- Email not available
Practice Locations
200 FRONT ST
Vestal, NY 13850
Procedures Most Often Billed to Medicare
240 services · 238 patients · 7 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
65 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
56 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
30 |
| Detection test by multiplex amplified probe technique for severe acute respiratory syndrome coronavirus 2 (sars-cov-2) (covid-19) and influenza virus types a and b | Lab test | 87636 |
30 |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
23 |
| Automated urinalysis test | Lab test | 81003 |
19 |
| Detection test by nucleic acid for strep (streptococcus, group a), amplified probe technique | Lab test | 87651 |
17 |
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 nurse practitioners at this location 3
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 nurse practitioners in Vestal 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2004 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What kind of doctor is Dr. O'Brien?
Dr. O'Brien is a nurse practitioner in Vestal, NY. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “NURSE PRACTITIONER”.
NPI registry
What is Dr. O'Brien's address?
Dr. O'Brien is listed at 200 FRONT ST, Vestal, NY 13850. 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 (607) 658-1003. 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 1821176264. 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 Other, graduating in 2004. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. O'Brien been practicing?
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 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 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.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.