Doctor profile · Federal record
Dr. Barbara Johnston, PH.D.
Psychologist (CMS: Clinical Psychologist) · Martinez, CA
- NPI 1982924965
- Accepts Medicare
- 29 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
41 Wanda Way
Martinez, CA 945539778
(925) 229-3162
Credentials & registration
- NPI registered
- June 2010 — 16 yrs on file
- Profile last updated
- October 25, 2010
- Year of graduation
- 1997 — 29 yrs since
- Specialty taxonomy
- 103T00000X — NUCC code
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1982924965. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
104
Distinct HCPCS
2
Medicare allowed
$9,971
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
90832 |
Psychotherapy, 30 minutes | 60 | 14 | $84 | |
90834 |
Psychotherapy, 45 minutes | 44 | 13 | $112 |
In context: peer comparison
Among 1 peers in Martinez Psychologist, average services per provider: 52. This provider delivers 2.0× the peer median.Frequently asked questions
What is Dr. Barbara Johnston's medical specialty?
Dr. Barbara Johnston practices Psychologist in Martinez, CA.
Where does Dr. Barbara Johnston practice?
Dr. Barbara Johnston practices at 41 Wanda Way, Martinez, CA 945539778. Office phone: 9252293162.
What is Dr. Barbara Johnston's NPI?
Dr. Barbara Johnston's National Provider Identifier (NPI) is 1982924965, issued by NPPES.
Does Dr. Barbara Johnston accept Medicare assignment?
Yes. Dr. Barbara Johnston accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Barbara Johnston commonly perform?
Top Medicare-reported procedures in 2023: Psychotherapy (HCPCS 90832); Psychotherapy (HCPCS 90834). Source: CMS Medicare Physician & Other Practitioners file.