Karen Murphy-Acosta, PSY.D.
NPI 1851732937 · Clinical Psychologist · Westlake Village, CA
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Murphy-Acosta, PSY.D. is a Clinical Psychologist provider in Westlake Village, CA (NPI 1851732937).
Provider details
- NPI number
- 1851732937
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PSY.D.
- Sex
- Female
- Sole proprietor
- No
- License
- PSY23008 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
12 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
3,190 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Psychiatric Services Complicated By Communication Factor90785 | 1,308 | $14 |
| Psychotherapy, 30 Minutes90832 | 936 | $73 |
| Care Management Services for Behavioral Health Conditions, 20 Minutes Or More Clinical Staff Time Directed By Health Care Professional99484 | 440 | $49 |
| Psychiatric Diagnostic Evaluation90791 | 217 | $160 |
| Psychotherapy, 45 Minutes90834 | 210 | $95 |
| Psychotherapy, 1 Hour90837 | 79 | $146 |
Typical Medicare-allowed amounts for these services range $14–$160 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2013-07-17
- Last updated
- 2023-10-06
- Certified
- 2023-10-06
Frequently asked questions
- What is Karen Murphy-Acosta's NPI number?
- Karen Murphy-Acosta's National Provider Identifier (NPI) is 1851732937, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Murphy-Acosta's specialty?
- Karen Murphy-Acosta is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Karen Murphy-Acosta located?
- Karen Murphy-Acosta's practice location on file with NPPES is 1014 S Westlake Blvd # 14-243, Westlake Village, CA 91361-3108.
- What is Karen Murphy-Acosta's phone number?
- The practice phone number listed in the NPPES registry for Karen Murphy-Acosta is (805) 242-2429.
- Does Karen Murphy-Acosta accept Medicare?
- Karen Murphy-Acosta is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Murphy-Acosta's NPI active?
- Yes — Karen Murphy-Acosta's NPI (1851732937) is active in the NPPES registry as of the last update on 2023-10-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.