Dr. Christopher Merkl, M.D.
Neurology (Behavioral Neurology & Neuropsychiatry Physician)
- Medicare participating
At a glance
- In the NPI registry since
- 2006
- Medicare patients seen, 2024
- 408
Licensed in Texas since 1989, according to the Texas Medical Board. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is
Education and training
- 2006Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Medicare’s Care Compare data doesn’t list this clinician’s medical school. Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Behavioral Neurology & Neuropsychiatry Physician primary
TX license H6431 (first issued 1989; active)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Medicare patients and services
- Medicare patients, 2024
- 408
- Services billed
- 1,059
- Patients’ average age
- 79
| Service | Times | Patients |
|---|---|---|
| Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes | 461 | 181 |
| Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 223 | 221 |
| Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | 198 | 124 |
| Residence visit for established patient with straightforward medical decision making, per day, if using time, at least 15 minutes | 166 | 79 |
| Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes | 92 | 60 |
| Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes | 74 | 57 |
| Residence visit for new patient with moderate level of medical decision making, per day, if using time, at least 60 minutes | 59 | 59 |
| Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 41 | 36 |
| Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes | 22 | 16 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Medicare prescriptions
| Drug | Prescriptions |
|---|---|
| Quetiapine Fumarate Other prescribers in Houston, TX | 474 |
| Trazodone Hcl Other prescribers in Houston, TX | 345 |
| Lorazepam Other prescribers in Houston, TX | 88 |
| Risperidone Other prescribers in Houston, TX | 85 |
| Sertraline Hcl Other prescribers in Houston, TX | 65 |
| Alprazolam Other prescribers in Houston, TX | 62 |
| Clonazepam Other prescribers in Houston, TX | 61 |
| Citalopram Hbr (citalopram hydrobromide) Other prescribers in Houston, TX | 60 |
| Venlafaxine Hcl Er (venlafaxine hcl) Other prescribers in Houston, TX | 53 |
| Mirtazapine Other prescribers in Houston, TX | 52 |
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.