Doctor profile · Federal record
Dr. John Rostkowski, M.D.
Psychiatry Physician (CMS: Psychiatry) · Concord, CA
- NPI 1861424665
- Accepts Medicare
- 57 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
1420 Willow Pass RD # 200
Concord, CA 945205823
(925) 899-3883
fax (925) 229-9037 - Mailing address
-
1150 Arlington Way
Martinez, CA 945532322
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- March 1, 2023
- Year of graduation
- 1969 — 57 yrs since
- Specialty taxonomy
- 2084P0800X — NUCC code
- State license (1)
- California #G24111
- Medicaid
- CA #00G241110
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1861424665. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
126
Distinct HCPCS
4
Medicare allowed
$16,438
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 62 | 34 | $109 | |
90792 |
Psychiatric diagnostic evaluation with medical services | 28 | 21 | $221 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 22 | 19 | $74 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 14 | 12 | $133 |
In context: peer comparison
Among 2 peers in Concord Psychiatry Physician, average services per provider: 49. This provider delivers 2.6× the peer median.Open Payments
Industry payments received
All-time total
$765
Transactions
7
Manufacturers
6
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Janssen Pharmaceuticals, INC | 1 | $148.88 | |
| Axsome Therapeutics, INC. | 2 | $147.82 | |
| E.R. Squibb & Sons, L.L.C. | 1 | $124.06 | |
| Otsuka America Pharmaceutical, INC. | 1 | $121.83 | |
| Vanda Pharmaceuticals INC. | 1 | $114.29 | |
| Alkermes, INC. | 1 | $108.15 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
690
Patients
69
Total drug cost
$37,737
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Clonazepam | Generic | 143 | 23 | $2,767 |
| Trazodone Hcl | Generic | 75 | 18 | $1,736 |
| Quetiapine Fumarate | Generic | 60 | 17 | $6,185 |
| Olanzapine | Generic | 53 | 11 | $7,446 |
| Aripiprazole | Generic | 43 | 0 | $6,876 |
| Buspirone Hcl | Generic | 40 | 0 | $997 |
| Lorazepam | Generic | 39 | 0 | $806 |
| Paroxetine Hcl | Generic | 39 | 0 | $297 |
| Risperidone | Generic | 36 | 0 | $951 |
| Bupropion Xl (Bupropion Hcl) | Brand | 33 | 0 | $1,751 |
Frequently asked questions
What is Dr. John Rostkowski's medical specialty?
Dr. John Rostkowski practices Psychiatry Physician in Concord, CA.
Where does Dr. John Rostkowski practice?
Dr. John Rostkowski practices at 1420 Willow Pass RD # 200, Concord, CA 945205823. Office phone: 9258993883.
What is Dr. John Rostkowski's NPI?
Dr. John Rostkowski's National Provider Identifier (NPI) is 1861424665, issued by NPPES.
Does Dr. John Rostkowski accept Medicare assignment?
Yes. Dr. John Rostkowski accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Rostkowski commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Psychiatric diagnostic evaluation with medical services (HCPCS 90792); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.