Barbara M. Mackie, MD
NPI 1861492852ActiveIndividual· Allergy & Immunology· Vienna, VA
Allergy & Immunology (MD) in Vienna, Virginia, trained at Georgetown University School of Medicine (class of 1991). Their prescriptions cost Medicare Part D more than their services did: $106,658 for 238 claims, against $19,420 paid for services in 2024. Regeneron Healthcare Solutions, Inc. was the largest of 17 companies reporting payments in 2025, $1,485 in all, mostly food and beverage.
Overview
| NPI | 1861492852 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 30, 2005 |
| Last updated in NPPES | Mar 17, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Allergy & Immunology Primary | 207K00000X | 0101048568 | VA |
| Family Medicine | 207Q00000X | 0101048568 | 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 - Allergy/Immunology (DC); Practitioner - Allergy/Immunology (VA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 97 |
|---|---|
| Services billed | 1,162 across 21 procedure codes |
| Paid by Medicare | $19,420 |
Part D prescriptions in 2024
| Prescriptions (claims) | 238 · 443 30-day fills |
|---|---|
| Patients | 56 |
| Total drug cost | $106,658 |
| Generic share | 63% of claims |
Education and affiliations
| Medical school | Georgetown University School of Medicine |
|---|---|
| Graduation year | 1991 |
| Medicare specialty | Allergy/Immunology |
| Secondary specialties | Family Practice |
| Telehealth | Offers telehealth |
Medical group
- Privia Medical Group, LLCFairfax, VA · 1,533 clinicians
Industry payments (Open Payments)
- 2025$1,485 · 53 payments from 17 companies
- 2024$1,828 · 72 payments from 16 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Regeneron Healthcare Solutions, Inc. | $312.58 | 4 |
| Genzyme Corporation | $257.01 | 9 |
| Ars Pharmaceuticals Operations, Inc. | $164.99 | 9 |
| Astrazeneca Pharmaceuticals LP | $145.53 | 6 |
| Genentech USA, Inc. | $107.81 | 4 |
What the 2025 payments were for
- Food and Beverage$1,485 · 53 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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