Keina Tirrell, LCSW
Keina Tirrell, LCSW is a provider specialising in Clinical Social Worker in Millsboro, DE, registered under NPI 1003430356.
Getting there
Here is what surrounds this office in Millsboro, based on OpenStreetMap data collected Sep 26, 2026. Parking is available about 791 ft away. A pharmacy sits 0.36 mi from the entrance (Walgreens), which helps if you leave with a prescription.
Getting here and what is nearby
Parking 599 ft ~3 min
Parking 649 ft ~3 min
Parking 791 ft ~3 min
Restaurant Hardee's 1,007 ft ~4 min
Pharmacy Millsboro Pharmacy 0.23 mi ~5 min
321 Old Landing Road, Millsboro 19966
Restaurant Pizza Palace 0.24 mi ~5 min
28544 Dupont Boulevard, Millsboro 19966
Restaurant Dunkin' 0.25 mi ~6 min
Grocery Food Lion 0.25 mi ~6 min
28544 Dupont Boulevard, Millsboro 19966
Convenience K & K Cigarettes & Deli 0.35 mi ~8 min
28515 Dupont Boulevard, Millsboro 19966
Gas station Carroll Motor Fuels 0.36 mi ~8 min
Pharmacy Walgreens 0.36 mi ~8 min
28516 Dupont Boulevard, Millsboro 19966
Gas station Wawa 0.39 mi ~8 min
Convenience Wawa 0.40 mi ~9 min
Gas station Bodies Market 0.45 mi ~9 min
Convenience Bodies Market 0.46 mi ~10 min
222 Railroad Avenue, Millsboro 19966
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 |
|---|---|---|
| Q1-0001806 | DE | Clinical Social Worker primary |
This provider holds licence Q1-0001806 issued in DE. 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 | 1003430356 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jun 2, 2020 |
| Last updated | Jun 2, 2020 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | LCSW |
| Practice address |
29611 SAWYER LOOP Millsboro, DE 19966 (302) 858-3835 |
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 | 4 | 3 | 0 | 3 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 8 | 3 | 0 | 3 | 1 |
Sum = 44 · next multiple of 10 = 50 · check digit = 6 · actual last digit = 6
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.