Joanna Williams
Joanna Williams is a provider specialising in Clinical Social Worker in Durham, NC, registered under NPI 1003615907. 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 Durham, based on OpenStreetMap data collected Oct 10, 2026. Parking is available about 913 ft away. The nearest transit stop is 463 ft away, served by Research Dr at Erwin Rd (Eye Center Garage). A pharmacy sits 0.38 mi from the entrance (Walgreens), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.41 mi away.
Getting here and what is nearby
Coffee Saladelia @Hock Plaza 53 ft ~1 min
Transit Hock Plaza (2424 Erwin Rd) 130 ft ~1 min
Transit Erwin Rd at Research Dr 176 ft ~1 min
Convenience Family Fare 159 ft ~1 min
Gas station BP 158 ft ~1 min
Gas station Exxon 386 ft ~2 min
Convenience Cruizers 419 ft ~2 min
2500 Erwin Road, Durham 27705
Transit Research Dr at Erwin Rd (Eye Center Garage) 463 ft ~2 min
Parking 530 ft ~3 min
7 Sands Parking Drive, Durham 27705
Parking 732 ft ~3 min
3 Genome Court, Durham 27705
Restaurant Dunkin' 786 ft ~3 min
2608 Erwin Road, Durham 27705
Mo-Sa 04:30-23:00; Su 05:00-22:00
Restaurant Noodles & Company 798 ft ~4 min
2608 Erwin Road, Durham 27705
Mo-Su 11:00-21:00; Th-Sa 11:00-22:00
Restaurant Chipotle 865 ft ~4 min
Parking 913 ft ~4 min
2606 Erwin Road, Durham 27705
Hotel CAMBRiA hotel & suites Durham - Duke University Medical Center Area 0.28 mi ~6 min
Hotel AC Hotel by Marriott Durham 0.31 mi ~7 min
Hotel The University Inn 0.31 mi ~7 min
Pharmacy Walgreens 0.38 mi ~8 min
Coffee Twinnies Cafe 0.41 mi ~9 min
Gas station Town -N- Country 0.48 mi ~10 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 |
|---|---|---|
| P021324 | NC | Clinical Social Worker primary |
This provider holds licence P021324 issued in NC. 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 | 1003615907 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 12, 2025 |
| Last updated | Mar 12, 2025 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Practice address |
615 DOUGLAS ST STE 500 Durham, NC 27705 (919) 358-4983 |
| Mailing address |
1295 BANDANA BLVD WEST STE 210 St. Paul, MN 55108 |
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 | 6 | 1 | 5 | 9 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 3 | 1 | 1 | 9 | 0 |
Sum = 43 · next multiple of 10 = 50 · check digit = 7 · actual last digit = 7
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.