Dr. William M. Redden, M.D.
Psychiatry (Psychiatry Physician)
- Medicare participating
At a glance
- Medical school
- Brody School of Medicine at East Carolina University (2002)
- Years since graduation
- 24
- In the NPI registry since
- 2007
- Medicare patients seen, 2024
- 171
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
- 2002Medical school: Brody School of Medicine at East Carolina University
- 2007Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
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
-
Psychiatry Physician primary
MO license FR1546300 -
Geriatric Psychiatry Physician
MO license FR1546300
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Ssm Health Saint Louis University Hospital Saint Louis, MO
- Ssm Health St Mary's Hospital - St Louis Saint Louis, MO
- Ssm Health Depaul Hospital St Louis Bridgeton, MO
Medical groups
- Ssm Health Care Group (940 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 171
- Services billed
- 587
- Patients’ average age
- 58
| Service | Times | Patients |
|---|---|---|
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 487 | 121 |
| Established patient office or other outpatient visit, 30-39 minutes | 148 | 62 |
| Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 71 | 28 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 42 | 40 |
| Established patient office or other outpatient visit, 20-29 minutes | 38 | 25 |
| Telephone medical discussion with physician, 11-20 minutes | 29 | 11 |
| Hospital discharge day management, 30 minutes or less | 16 | 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 |
|---|---|
| Dextroamphetamine-Amphetamine (dextroamphetamine/amphetamine) Other prescribers in Saint Louis, MO | 254 |
| Clonazepam Other prescribers in Saint Louis, MO | 183 |
| Trazodone Hcl Other prescribers in Saint Louis, MO | 148 |
| Alprazolam Other prescribers in Saint Louis, MO | 123 |
| Duloxetine Hcl Other prescribers in Saint Louis, MO | 117 |
| Quetiapine Fumarate Other prescribers in Saint Louis, MO | 104 |
| Mirtazapine Other prescribers in Saint Louis, MO | 96 |
| Bupropion Xl (bupropion hcl) Other prescribers in Saint Louis, MO | 87 |
| Memantine Hcl Other prescribers in Saint Louis, MO | 85 |
| Fluoxetine Hcl Other prescribers in Saint Louis, MO | 77 |
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.
Payments from drug and device companies
In 2025, 1 companies reported 2 payments worth $111 in total to this clinician.
| Lundbeck LLC | $111 |
|---|
| Food and Beverage | $111 |
|---|
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.
Industry-funded research
Named as a principal investigator on 2 industry-funded studies in 2025, from 1 companies. The companies reported $31,963 in research payments for these studies, mostly to the institutions running them.
- A Randomized, Double-blind, Placebo-controlled, Global Study to Evaluate the Efficacy, Safety, and Tolerability of BMS-986446, an Anti-MTBR Tau Monoclonal Antibody, in Participants with Early Alzheimers Disease (Targe…
E.r. Squibb & Sons, L.l.c. - Study to Evaluate the Efficacy, Safety, and Tolerability of an Anti-MTBR Tau Monoclonal Antibody (BMS-986446) in Participants With Early Alzheimer's Disease
E.r. Squibb & Sons, L.l.c. · Active, not recruiting · NCT06268886
From CMS Open Payments research payments, where companies name up to five principal investigators per payment. Research payments usually go to hospitals, universities and research sites, not to the investigator personally. A payment is not evidence of wrongdoing.