Erin Liiv, LCSW
Erin Liiv, LCSW is a provider specialising in Clinical Social Worker in Santa Rosa, CA, registered under NPI 1003142340.
Getting there
Here is what surrounds this office in Santa Rosa, based on OpenStreetMap data collected Sep 7, 2026. Parking is available about 0.32 mi away. The nearest transit stop is 0.43 mi away, served by Coddingtown Transit Hub. If you arrive early, there is a coffee shop 0.48 mi away.
Getting here and what is nearby
Parking 0.20 mi ~5 min
Parking 0.30 mi ~7 min
Transit West College Ave at Link Ln 0.32 mi ~7 min
Parking 0.32 mi ~7 min
Transit West College Ave at Maxwell Ct 0.34 mi ~7 min
Gas station West College Gas & Mart 0.36 mi ~8 min
Restaurant Carlos' Country Kitchen 0.36 mi ~8 min
90 West College Avenue
Transit Coddingtown Transit Hub 0.43 mi ~9 min
Coffee Sonoma Crust 0.47 mi ~10 min
1040-A North Dutton Avenue
Restaurant Acme Burger 0.47 mi ~10 min
1007 West College Avenue, Santa Rosa 95401
Mo-Su 11:00-21:00
Coffee Starbucks 0.48 mi ~10 min
Convenience Wagon Wheel Liquors 0.48 mi ~10 min
Restaurant Page's Diner 0.49 mi ~10 min
1039 West College Avenue, Santa Rosa 95401
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 |
|---|---|---|
| LCSW23841 | CA | Clinical Social Worker |
| LCS23841 | CA | Clinical Social Worker primary |
This provider holds licence LCSW23841 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
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 1041C0700X | Clinical Social Worker Clinical | LCSW23841 | CA | |
| 1041C0700X | Clinical Social Worker Clinical | LCS23841 | CA | primary |
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 | 1003142340 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Oct 21, 2009 |
| Last updated | Aug 23, 2021 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | LCSW |
| Practice address |
1300 N DUTTON AVE Santa Rosa, CA 95401 (707) 303-3600 |
| Mailing address |
PO BOX 49 Bodega, CA 94922 |
| Other names |
Erin Mallory Former Legal Business Name |
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 | 1 | 4 | 2 | 3 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 2 | 4 | 4 | 3 | 8 |
Sum = 50 · next multiple of 10 = 50 · check digit = 0 · actual last digit = 0
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.