Arianna Tatarczuk Youell, PA-C
NPI 1427591510ActiveIndividual· Physician Assistant, Medical· Hartford, CT
Physician Assistant, Medical (PA-C) with Connecticut Gi PLLC, practicing in Hartford, Connecticut. Their prescriptions cost Medicare Part D more than their services did: $642,117 for 3,113 claims, against $24,694 paid for services in 2024. Phathom Pharmaceuticals, Inc. was the largest of 12 companies reporting payments in 2025, $1,042 in all, mostly food and beverage. Lists Hartford Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1427591510 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Nov 22, 2016 |
| Last updated in NPPES | May 28, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant, Medical Primary | 363AM0700X | 3711 | CT |
| Physician Assistant | 363A00000X | 23.003711 | CT |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Physician Assistant (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 191 |
|---|---|
| Services billed | 274 across 7 procedure codes |
| Paid by Medicare | $24,694 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,113 · 6,873 30-day fills |
|---|---|
| Patients | 759 |
| Total drug cost | $642,117 |
| Generic share | 85% of claims |
Education and affiliations
| Graduation year | 2016 |
|---|---|
| Medicare specialty | Physician Assistant |
| Telehealth | Offers telehealth |
Medical group
- Connecticut Gi PLLCWallingford, CT · 248 clinicians
Hospital affiliations
- Hartford HospitalHartford, CT
- Manchester Memorial HospitalManchester, CT
Industry payments (Open Payments)
- 2025$1,042 · 52 payments from 12 companies
- 2024$1,975 · 89 payments from 22 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Phathom Pharmaceuticals, Inc. | $271.92 | 16 |
| Abbvie Inc. | $258.51 | 15 |
| Janssen Biotech, Inc. | $100.71 | 4 |
| Takeda Pharmaceuticals U.S.A., Inc. | $89.72 | 3 |
| Ardelyx, Inc. | $74.37 | 3 |
What the 2025 payments were for
- Food and Beverage$1,042 · 52 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 250 physician assistants in Hartford · All physician assistants in Connecticut