Christopher Keilty Darnall, M.D.
NPI 1225204530ActiveIndividual· Psychiatry & Neurology, Sleep Medicine· Austin, TX
Psychiatry & Neurology, Sleep Medicine (M.D.) in Austin, Texas, trained at University of Mississippi School of Medicine (class of 2002). 1,347 Medicare patients in 2024, $234,947 paid; nearly all of their 485 Part D prescriptions were generic (94%). Jazz Pharmaceuticals Inc. reported $150.00 in payments in 2025, mostly consulting fees.
Overview
| NPI | 1225204530 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 6, 2008 |
| Last updated in NPPES | Jun 3, 2026 |
| Certified by provider | Jun 3, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Sleep Medicine Primary | 2084S0012X | M9242 | TX |
| Psychiatry & Neurology, Neurology | 2084N0400X | M9242 | TX |
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 - Sleep Medicine (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,347 |
|---|---|
| Services billed | 2,081 across 13 procedure codes |
| Paid by Medicare | $234,947 |
Part D prescriptions in 2024
| Prescriptions (claims) | 485 · 783 30-day fills |
|---|---|
| Patients | 122 |
| Total drug cost | $30,502 |
| Generic share | 94% of claims |
Education and affiliations
| Medical school | University of Mississippi School of Medicine |
|---|---|
| Graduation year | 2002 |
| Medicare specialty | Sleep Medicine |
Medical group
- Austin Regional Clinic PAHutto, TX · 397 clinicians
Industry payments (Open Payments)
- 2025$150.00 · 1 payment from 1 company
- 2024$175.43 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Jazz Pharmaceuticals Inc. | $150.00 | 1 |
What the 2025 payments were for
- Consulting Fee$150.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Psychiatry & Neurology, Sleep Medicine providers in Austin
- 1669447397
- 1487626008
- 1801832209
All Psychiatry & Neurology, Sleep Medicine providers in Texas