ANDREA R.O. CLARK (PH.D) – Clinical Psychologist, NPI 1013146802
Clinical Psychologist
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
4,434 CLINICAL PSYCHOLOGIST in CA
Provider Addresses for ANDREA R.O. CLARK (PH.D)
31194 LA BAYA DR STE 100
WESTLAKE VILLAGE, CA 913626420
Phone: (805) 242-2429
Fax: (310) 870-7197
Type: Mailing
1966, Tice Valley Boulevard, Walnut Creek, Contra Costa County, California, 94595, United States
#233
WALNUT CREEK, CA 945952203
Phone: (925) 330-2121
Type: Mailing
268, Grand Avenue, Adams Point, Oakland, Alameda County, California, 94610, United States
OAKLAND, CA 946104724
Phone: (510) 835-2777
Type: Location
2425 BISSO LN STE 100
CONCORD, CA 945204817
Phone: (925) 348-3895
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2016-10-24
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20161024000819 | I | Clinical Psychologist | CA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 90785 | Psychiatric services complicated by communication factor | 1,089 | 184 | $0 |
| 90832 | Psychotherapy, 30 minutes | 911 | 163 | $0 |
| 99484 | Care management services for behavioral health conditions, 20 minutes or more clinical staff time directed by health care professional | 402 | 167 | $0 |
| 90791 | Psychiatric diagnostic evaluation | 171 | 170 | $0 |
| 90837 | Psychotherapy, 1 hour | 74 | 17 | $0 |
Insurance plans in this area (ZIP 91362)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Clinical Psychologist | CA | |
| Clinical Psychologist | CA | |
| Clinical Psychologist | CA | |
| - | CA | |
| Clinical Psychologist | CA | |
| Clinical Psychologist | CA | |
| Clinical Psychologist | CA | |
| Clinical Psychologist | CA | |
| Clinical Psychologist | CA | |
| Clinical Psychologist | CA |
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