Doctor profile · Federal record
Dr. Warren Kammerer, MD
Psychiatry Physician (CMS: Psychiatry) · Park Ridge, IL
- NPI 1134236565
- Accepts Medicare
- 39 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
1440 Renaissance Dr, Suite 200
Park Ridge, IL 600681356
(847) 296-3442
fax (847) 296-3543
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- March 26, 2008
- Year of graduation
- 1987 — 39 yrs since
- Specialty taxonomy
- 2084P0800X — NUCC code
- State license (1)
- Illinois #036077883
- Medicaid
- IL #036077883
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1134236565. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
442
Distinct HCPCS
2
Medicare allowed
$37,737
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 269 | 81 | $94 | |
90833 |
Psychotherapy with evaluation and management visit, 30 minutes | 173 | 65 | $71 |
In context: peer comparison
Among 10 peers in this city , average services per provider: 226. This provider delivers 2.0× the peer median.Open Payments
Industry payments received
All-time total
$440
Transactions
22
Manufacturers
9
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Lundbeck LLC | 6 | $119.63 | |
| ABBVIE INC. | 4 | $90.86 | |
| Axsome Therapeutics, Inc. | 3 | $63.90 | |
| Otsuka America Pharmaceutical, Inc. | 2 | $33.88 | |
| Takeda Pharmaceuticals U.S.A., Inc. | 2 | $32.92 | |
| Alkermes, Inc. | 2 | $32.32 | |
| Janssen Pharmaceuticals, Inc | 1 | $23.41 | |
| Bausch Health US, LLC | 1 | $23.17 | |
| Noven Therapeutics, LLC | 1 | $19.58 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
920
Patients
71
Total drug cost
$22,250
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Alprazolam | Generic | 117 | 16 | $796 |
| Clozapine | Generic | 101 | 0 | $5,572 |
| Clonazepam | Generic | 98 | 17 | $1,083 |
| Venlafaxine Hcl Er (Venlafaxine Hcl) | Brand | 96 | 15 | $2,581 |
| Lorazepam | Generic | 86 | 11 | $1,034 |
| Quetiapine Fumarate | Generic | 76 | 12 | $967 |
| Duloxetine Hcl | Generic | 66 | 0 | $3,201 |
| Bupropion Xl (Bupropion Hcl) | Brand | 50 | 0 | $1,588 |
| Mirtazapine | Generic | 39 | 0 | $638 |
| Lamotrigine | Generic | 38 | 0 | $971 |
Frequently asked questions
What is Dr. Warren Kammerer's medical specialty?
Dr. Warren Kammerer practices Psychiatry Physician in Park Ridge, IL.
Where does Dr. Warren Kammerer practice?
Dr. Warren Kammerer practices at 1440 Renaissance Dr, Park Ridge, IL 600681356. Office phone: 8472963442.
What is Dr. Warren Kammerer's NPI?
Dr. Warren Kammerer's National Provider Identifier (NPI) is 1134236565, issued by NPPES.
Does Dr. Warren Kammerer accept Medicare assignment?
Yes. Dr. Warren Kammerer accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Warren Kammerer commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Psychotherapy with evaluation and management visit (HCPCS 90833). Source: CMS Medicare Physician & Other Practitioners file.