Jessica O'Brien, P.A.
NPI 1710902457 · Medical Physician Assistant · Greenwich, CT
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jessica O'Brien, P.A. is a Medical Physician Assistant provider in Greenwich, CT (NPI 1710902457).
Provider details
- NPI number
- 1710902457
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- P.A.
- Sex
- Female
- Sole proprietor
- No
- License
- 008468 (NY)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
382 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 168 | $151 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 151 | $104 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 50 | $61 |
| Simple Repair of Surface Wound of Scalp, Neck, Underarms, Trunk, Arms, Or Legs, 2.5 Cm Or Less12001 | 13 | $38 |
Typical Medicare-allowed amounts for these services range $38–$151 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 3 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cefuroxime Axetilbrand: Cefuroxime | 16 | 16 |
| Cephalexin | 16 | 16 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 12 | 12 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$33 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 160 N Midland AveNyack, NY 10960-1912Phone: (203) 863-3638
Registry dates
- Enumerated
- 2006-07-13
- Last updated
- 2020-04-13
- Certified
- 2020-04-13
Frequently asked questions
- What is Jessica O'Brien's NPI number?
- Jessica O'Brien's National Provider Identifier (NPI) is 1710902457, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jessica O'Brien's specialty?
- Jessica O'Brien is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Jessica O'Brien located?
- Jessica O'Brien's practice location on file with NPPES is 5 Perryridge Rd, Greenwich, CT 06830-4608.
- What is Jessica O'Brien's phone number?
- The practice phone number listed in the NPPES registry for Jessica O'Brien is (203) 863-3637.
- Does Jessica O'Brien accept Medicare?
- Jessica O'Brien is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jessica O'Brien's NPI active?
- Yes — Jessica O'Brien's NPI (1710902457) is active in the NPPES registry as of the last update on 2020-04-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.