Joan Helfenstein, LCSW
NPI 1942321740 · Clinical Social Worker · Los Angeles, CA
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joan Helfenstein, LCSW is a Clinical Social Worker provider in Los Angeles, CA (NPI 1942321740).
Provider details
- NPI number
- 1942321740
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- Yes
- License
- LI9449 (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
19 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
858 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) |
|---|---|---|
| Psychotherapy, 1 Hour90837 | 858 | $120 |
Typical Medicare-allowed amounts for these services range $120–$120 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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
- 2007-04-02
- Last updated
- 2025-09-03
- Certified
- 2025-09-03
Frequently asked questions
- What is Joan Helfenstein's NPI number?
- Joan Helfenstein's National Provider Identifier (NPI) is 1942321740, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joan Helfenstein's specialty?
- Joan Helfenstein is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Joan Helfenstein located?
- Joan Helfenstein's practice location on file with NPPES is 566 S San Vicente Blvd Ste 103, Los Angeles, CA 90048-4650.
- What is Joan Helfenstein's phone number?
- The practice phone number listed in the NPPES registry for Joan Helfenstein is (310) 278-8211.
- Does Joan Helfenstein accept Medicare?
- Joan Helfenstein is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joan Helfenstein's NPI active?
- Yes — Joan Helfenstein's NPI (1942321740) is active in the NPPES registry as of the last update on 2025-09-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.