Heidi Weinreich, LCSW
Heidi Weinreich, LCSW is a provider specialising in Clinical Social Worker in Los Angeles, CA, registered under NPI 1003091331. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
Here is what surrounds this office in Los Angeles, based on OpenStreetMap data collected Sep 4, 2026. Parking is available about 773 ft away. The nearest transit stop is 485 ft away, served by Los Feliz & Hillhurst. A pharmacy sits 0.27 mi from the entrance (Sav-On), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 909 ft away.
Getting here and what is nearby
Transit Los Feliz & Commonwealth 75 ft ~1 min
Transit Los Feliz & Commonwealth 146 ft ~1 min
Transit Los Feliz & Hillhurst 485 ft ~2 min
Gas station 76 516 ft ~2 min
Parking 520 ft ~2 min
Parking 605 ft ~3 min
Coffee Starbucks Reserve 658 ft ~3 min
2138 Hillhurst Avenue, Los Angeles 90027
Mo-Su 05:00-22:00
Restaurant Casa Leo 707 ft ~3 min
4500 Los Feliz Boulevard, Los Angeles 90027
Mo-Su 08:00-20:00
Restaurant Messhall Kitchen 723 ft ~3 min
4500 Los Feliz Boulevard, Los Angeles 90027
Su-Th 09:00-22:00; Fr-Sa 09:00-23:00
Restaurant Little Dom's 729 ft ~3 min
2128 Hillhurst Avenue, Los Angeles 90027
Mo-Th 08:00-15:00,17:30-23:00; Su 08:00-15:00,17:30-23:00; Fr-Sa 08:00-15:00,17:30-24:00
Parking 773 ft ~3 min
Coffee Cafe Los Feliz 862 ft ~4 min
2118 Hillhurst Avenue, Los Angeles 90027
Mo-Sa 07:00-18:00; Su 07:00-15:00
Coffee Philz Coffee 909 ft ~4 min
2117 Hillhurst Avenue, Los Angeles 90027
Grocery Lassen's Natural Foods & Vitamins 0.20 mi ~4 min
2080 Hillhurst Avenue, Los Angeles 90027
Mo-Sa 11:00-19:00
Pharmacy Sav-On 0.27 mi ~6 min
2035 Hillhurst Avenue, Los Angeles 90027
Mo-Su 08:00-20:00
Grocery Albertsons 0.27 mi ~6 min
2035 Hillhurst Avenue, Los Angeles 90027
Mo-Su 06:00-23:00
Gas station Chevron 0.34 mi ~7 min
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 21999 | CA | Clinical Social Worker primary |
This provider holds licence 21999 issued in CA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Clinical covers
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances. NUCC Health Care Provider Taxonomy, code 1041C0700X
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1003091331 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jan 6, 2008 |
| Last updated | Jan 6, 2008 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Credential | LCSW |
| Practice address |
4411 LOS FELIZ BLVD APT 403 Los Angeles, CA 90027 (323) 640-5122 Fax (323) 665-5866 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 0 | 0 | 3 | 0 | 9 | 1 | 3 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 9 | 2 | 3 | 6 |
Sum = 49 · next multiple of 10 = 50 · check digit = 1 · actual last digit = 1
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.