Doctor profile · Federal record
Dr. Stephen Allison, M.D.
Psychiatry Physician (CMS: Psychiatry) · Greenbrae, CA
- NPI 1023336294
- 16 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
250 Bon Air RD
Greenbrae, CA 949041702
(415) 925-7663
fax (415) 925-7665 - Mailing address
-
250 Bon Air RD Unit A
Greenbrae, CA 949041702
Credentials & registration
- NPI registered
- May 2010 — 16 yrs on file
- Profile last updated
- March 28, 2022
- Year of graduation
- 2010 — 16 yrs since
- Specialty taxonomy
- 2084P0800X — NUCC code
- State license (1)
- California #A118576
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1023336294. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
417
Distinct HCPCS
3
Medicare allowed
$55,288
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 338 | 68 | $127 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 44 | 42 | $185 | |
99239 |
Hospital discharge day management, more than 30 minutes | 35 | 32 | $124 |
In context: peer comparison
Among 1 peers in Greenbrae Psychiatry Physician, average services per provider: 139. This provider delivers 3.0× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
14
Patients
12
Total drug cost
$398
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Olanzapine | Generic | 14 | 12 | $398 |
Frequently asked questions
What is Dr. Stephen Allison's medical specialty?
Dr. Stephen Allison practices Psychiatry Physician in Greenbrae, CA.
Where does Dr. Stephen Allison practice?
Dr. Stephen Allison practices at 250 Bon Air RD, Greenbrae, CA 949041702. Office phone: 4159257663.
What is Dr. Stephen Allison's NPI?
Dr. Stephen Allison's National Provider Identifier (NPI) is 1023336294, issued by NPPES.
Does Dr. Stephen Allison accept Medicare assignment?
Dr. Stephen Allison does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Stephen Allison commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Initial hospital care with moderate level of medical decision making (HCPCS 99223); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.