Darren Bond Keller, M.D.
NPI 1013988922ActiveIndividual· Internal Medicine, Gastroenterology· San Diego, CA
Internal Medicine, Gastroenterology (M.D.) in San Diego, California, trained at Boston University School of Medicine (class of 2001). Their prescriptions cost Medicare Part D more than their services did: $297,413 for 386 claims, against $55,095 paid for services in 2024. Olympus Medical Systems Corporation reported $1,000 in payments in 2025, mostly consulting fees.
Overview
| NPI | 1013988922 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jan 30, 2006 |
| Last updated in NPPES | Jun 19, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | C54900 | CA |
| Internal Medicine | 207R00000X | 0101234685 | 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 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Gastroenterology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 173 |
|---|---|
| Services billed | 1,003 across 44 procedure codes |
| Paid by Medicare | $55,095 |
Part D prescriptions in 2024
| Prescriptions (claims) | 386 · 775 30-day fills |
|---|---|
| Patients | 122 |
| Total drug cost | $297,413 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | Boston University School of Medicine |
|---|---|
| Graduation year | 2001 |
| Medicare specialty | Gastroenterology |
| Telehealth | Offers telehealth |
Medical group
- Sharp Rees-Stealy Medical Group IncSan Diego, CA · 884 clinicians
Hospital affiliation
- Sharp Memorial HospitalSan Diego, CA
Industry payments (Open Payments)
- 2025$1,000 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Olympus Medical Systems Corporation | $1,000 | 1 |
What the 2025 payments were for
- Consulting Fee$1,000 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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