Doctor profile · Federal record
Dr. Mark Diercks, M.D.
Psychiatry Physician (CMS: Psychiatry) · Omaha, NE
- NPI 1134283567
- Accepts Medicare
- 45 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
1111 North 13Th Street, Suite 207
Omaha, NE 681024251
(402) 348-1996
fax (402) 348-1879
Credentials & registration
- NPI registered
- December 2006 — 20 yrs on file
- Profile last updated
- March 21, 2019
- Year of graduation
- 1981 — 45 yrs since
- Specialty taxonomy
- 2084P0800X — NUCC code
- State license (1)
- Nebraska #16137
- Medicaid
- NE #47068181100
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1134283567. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
430
Distinct HCPCS
6
Medicare allowed
$37,156
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 187 | 33 | $73 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 161 | 57 | $82 | |
99239 |
Hospital discharge day management, more than 30 minutes | 35 | 29 | $106 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 19 | 13 | $110 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 16 | 14 | $161 | |
90792 |
Psychiatric diagnostic evaluation with medical services | 12 | 11 | $163 |
In context: peer comparison
Among 29 peers in Omaha Psychiatry Physician, average services per provider: 89. This provider delivers 4.8× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
1,377
Patients
245
Total drug cost
$255,465
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Quetiapine Fumarate | Generic | 280 | 53 | $8,102 |
| Alprazolam | Generic | 179 | 34 | $2,162 |
| Lamotrigine | Generic | 112 | 26 | $3,026 |
| Clonazepam | Generic | 95 | 21 | $1,834 |
| Zolpidem Tartrate | Generic | 86 | 11 | $1,195 |
| Buspirone Hcl | Generic | 84 | 26 | $2,334 |
| Venlafaxine Hcl ER (Venlafaxine Hcl) | Brand | 78 | 0 | $3,462 |
| Clozapine | Generic | 70 | 0 | $5,771 |
| Escitalopram Oxalate | Generic | 66 | 16 | $1,079 |
| Invega Sustenna (Paliperidone Palmitate) | Brand | 60 | 0 | $217,583 |
Frequently asked questions
What is Dr. Mark Diercks's medical specialty?
Dr. Mark Diercks practices Psychiatry Physician in Omaha, NE.
Where does Dr. Mark Diercks practice?
Dr. Mark Diercks practices at 1111 North 13Th Street, Omaha, NE 681024251. Office phone: 4023481996.
What is Dr. Mark Diercks's NPI?
Dr. Mark Diercks's National Provider Identifier (NPI) is 1134283567, issued by NPPES.
Does Dr. Mark Diercks accept Medicare assignment?
Yes. Dr. Mark Diercks accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Diercks commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Established patient office or other outpatient visit (HCPCS 99213); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.