Erika Lauren Grigg, M.D.
NPI 1487774410ActiveIndividual· Internal Medicine, Gastroenterology· Kingsport, TN
Internal Medicine, Gastroenterology (M.D.) with Holston Medical Group PC, practicing in Kingsport, Tennessee. Their prescriptions cost Medicare Part D more than their services did: $1,426,024 for 1,580 claims, against $61,002 paid for services in 2024. Janssen Biotech, Inc. was the largest of 19 companies reporting payments in 2025, $1,606 in all, mostly food and beverage. Lists Wellmont Holston Valley Medical Center as a hospital affiliation.
Overview
| NPI | 1487774410 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Mar 31, 2007 |
| Last updated in NPPES | May 25, 2023 |
| Certified by provider | May 25, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 048179 | TN |
| Internal Medicine | 207R00000X | 061438 | GA |
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 - Gastroenterology (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 287 |
|---|---|
| Services billed | 808 across 29 procedure codes |
| Paid by Medicare | $61,002 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,580 · 3,209 30-day fills |
|---|---|
| Patients | 427 |
| Total drug cost | $1,426,024 |
| Generic share | 80% of claims |
Education and affiliations
| Graduation year | 2005 |
|---|---|
| Medicare specialty | Gastroenterology |
Medical group
- Holston Medical Group PCKingsport, TN · 238 clinicians
Hospital affiliation
- Wellmont Holston Valley Medical CenterKingsport, TN
Industry payments (Open Payments)
- 2025$1,606 · 86 payments from 19 companies
- 2024$1,005 · 54 payments from 13 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $537.15 | 24 |
| Abbvie Inc. | $187.35 | 15 |
| Takeda Pharmaceuticals U.S.A., Inc. | $152.55 | 8 |
| Ardelyx, Inc. | $149.67 | 7 |
| Celltrion USA Inc. | $85.66 | 4 |
What the 2025 payments were for
- Food and Beverage$1,606 · 86 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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