Krystal E. Ainsley, MD
NPI 1588890545ActiveIndividual· Internal Medicine· Williamsburg, VA
Internal Medicine (MD) in Williamsburg, Virginia, trained at University of Nebraska College of Medicine (class of 2009). Their prescriptions cost Medicare Part D more than their services did: $847,871 for 10,209 claims, against $489,862 paid for services in 2024. Grifols USA, LLC was the largest of 7 companies reporting payments in 2025, $141.24 in all, mostly food and beverage.
Overview
| NPI | 1588890545 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 4, 2009 |
| Last updated in NPPES | May 2, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 0101251138 | VA |
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 - Internal Medicine (VA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 694 |
|---|---|
| Services billed | 17,737 across 134 procedure codes |
| Paid by Medicare | $489,862 |
Part D prescriptions in 2024
| Prescriptions (claims) | 10,209 · 22,671 30-day fills |
|---|---|
| Patients | 717 |
| Total drug cost | $847,871 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | University of Nebraska College of Medicine |
|---|---|
| Graduation year | 2009 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Riverside Physician Services IncWilliamsburg, VA · 797 clinicians
Hospital affiliations
- Riverside Doctors' Hospital of WilliamsburgWilliamsburg, VA
- Riverside Regional Medical CenterNewport News, VA
- Riverside Walter Reed HospitalGloucester, VA
- Sentara Careplex HospitalHampton, VA
- Sentara Williamsburg Regional Medical CenterWilliamsburg, VA
Other facilities
- Brookside Home Health, An Amedisys CompanyHome health agency · Williamsburg, VA
- Commonwealth Home CareHome health agency · Portsmouth, VA
- Riverside Home HealthHome health agency · Gloucester, VA
- Sentara Home Care Services-WilliamsburgHome health agency · Williamsburg, VA
- Woodhaven Hall at Williamsburg LandingNursing home · Williamsburg, VA
Industry payments (Open Payments)
- 2025$141.24 · 7 payments from 7 companies
- 2024$219.73 · 12 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Grifols USA, LLC | $27.86 | 1 |
| Mannkind Corporation | $23.78 | 1 |
| Astrazeneca Pharmaceuticals LP | $21.49 | 1 |
| Novo Nordisk Inc | $18.38 | 1 |
| Pfizer Inc. | $18.31 | 1 |
What the 2025 payments were for
- Food and Beverage$141.24 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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