Laurence R. O'Halloran, MD
NPI 1023007044ActiveIndividual· Specialist· Annandale, VA
Specialist (MD) in Annandale, Virginia, trained at Washington University School of Medicine (class of 1994). Mostly services rather than prescriptions: Medicare paid $66,731 for 176 patients in 2024, with only 26 Part D claims. Regeneron Healthcare Solutions, Inc. was the largest of 6 companies reporting payments in 2025, $515.95 in all, mostly food and beverage.
Overview
| NPI | 1023007044 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Oct 21, 2005 |
| Last updated in NPPES | Jul 13, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Specialist Primary | 174400000X | 0101051134 | VA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Otolaryngology (DC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 176 |
|---|---|
| Services billed | 1,080 across 38 procedure codes |
| Paid by Medicare | $66,731 |
Part D prescriptions in 2024
| Prescriptions (claims) | 26 · 28 30-day fills |
|---|---|
| Patients | 17 |
| Total drug cost | $678.94 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | Washington University School of Medicine |
|---|---|
| Graduation year | 1994 |
| Medicare specialty | Otolaryngology |
| Secondary specialties | Plastic And Reconstructive Surgery |
Medical group
- Fairfax ENT and Facial Plastic Surgery PCFalls Church, VA · 5 clinicians
Hospital affiliation
- Inova Fairfax HospitalFalls Church, VA
Industry payments (Open Payments)
- 2025$515.95 · 16 payments from 6 companies
- 2024$526.83 · 14 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Regeneron Healthcare Solutions, Inc. | $314.70 | 9 |
| Genzyme Corporation | $91.24 | 3 |
| Inspire Medical Systems, Inc. | $31.86 | 1 |
| Aerin Medical Inc. | $30.10 | 1 |
| Harmony Biosciences LLC | $25.17 | 1 |
What the 2025 payments were for
- Food and Beverage$417.61 · 15 payments
- Education$98.34 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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