Judith Liu, LCSW
Judith Liu, LCSW is a provider specialising in Clinical Social Worker in Stamford, CT, registered under NPI 1003359712. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty. 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 Stamford, based on OpenStreetMap data collected Sep 21, 2026. Parking is available about 708 ft away at Connecticut Park and Ride. There is EV charging 989 ft from the office (Stamford Supercharger) — useful if you are driving in from out of town. If you arrive early, there is a coffee shop 939 ft away.
Getting here and what is nearby
Parking 122 ft ~1 min
Parking 247 ft ~1 min
Gas station Global 334 ft ~2 min
1199 High Ridge Road, Stamford 06905
Restaurant Five Guys 364 ft ~2 min
1221 High Ridge Road, Stamford 06905
10:00-21:30
Grocery Acme 451 ft ~2 min
1201 High Ridge Road, Stamford 06905
Mo-Sa 07:00-22:00; Su 07:00-21:00
Parking Connecticut Park and Ride 708 ft ~3 min
Coffee Starbucks 939 ft ~4 min
EV charging Stamford Supercharger 989 ft ~4 min
Restaurant Burger King 0.20 mi ~5 min
1058 High Ridge Road, Stamford 06905-1122
Mo-Sa 07:00-24:00; Su 07:00-23:00
Grocery Trader Joe's 0.23 mi ~5 min
1041 High Ridge Road, Stamford 06905
Mo-Su 08:00-21:00
Restaurant Chicky’s Grill and Pizza 0.47 mi ~10 min
19 Cedar Heights Road, Stamford 06905
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 |
|---|---|---|
| 092353-01 | NY | Social Worker |
| 44SC06563000 | NJ | Clinical Social Worker |
| 1140819 | MA | Clinical Social Worker |
| 011631 | CT | Social Worker |
| 24475 | FL | Clinical Social Worker |
| 0904018317 | VA | Clinical Social Worker |
Licences are recorded in 6 states: NY, NJ, MA, CT, FL, VA. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
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.
Licensed in 6 states
This provider holds licences in 6 states: Connecticut, Florida, Massachusetts, New Jersey, New York and Virginia. The practice address on file is in Stamford, CT, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.
Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.
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 7 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 | — | — | primary |
| 104100000X | Social Worker | 092353-01 | NY | |
| 1041C0700X | Clinical Social Worker Clinical | 44SC06563000 | NJ | |
| 1041C0700X | Clinical Social Worker Clinical | 1140819 | MA | |
| 104100000X | Social Worker | 011631 | CT | |
| 1041C0700X | Clinical Social Worker Clinical | 24475 | FL | |
| 1041C0700X | Clinical Social Worker Clinical | 0904018317 | VA |
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 | 1003359712 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Nov 29, 2016 |
| Last updated | Jul 23, 2026 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Credential | LCSW |
| Practice address |
1200 HIGH RIDGE RD HUMANLY SUITE Stamford, CT 06905 (201) 477-8751 |
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 | 3 | 5 | 9 | 7 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 6 | 5 | 9 | 7 | 2 |
Sum = 58 · next multiple of 10 = 60 · check digit = 2 · actual last digit = 2
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.