Phylis Byrne, LCSW, CASAC
Phylis Byrne, LCSW, CASAC is a provider specialising in Clinical Social Worker in Rockville Centre, NY, registered under NPI 1003515172. 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 Rockville Centre, based on OpenStreetMap data collected Oct 2, 2026. Parking is available about 0.22 mi away at Village of Rockville Centre Parking Field 21. The nearest transit stop is 0.36 mi away, served by Merrick Road & Charing Cross Road. A pharmacy sits 0.47 mi from the entrance (CVS Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.32 mi away.
Getting here and what is nearby
Hotel Ramada 912 ft ~4 min
Parking 0.20 mi ~4 min
Parking 0.21 mi ~5 min
Restaurant McDonald's 0.21 mi ~5 min
618 Sunrise Highway, Rockville Centre 11570
07:00-23:00
Parking Village of Rockville Centre Parking Field 21 0.22 mi ~5 min
Restaurant Slider Joe's 0.24 mi ~5 min
Convenience Speedway 0.26 mi ~6 min
Grocery Associated Supermarket 0.26 mi ~6 min
160 North Long Beach Road, Rockville Centre 11570
Gas station Speedway 0.28 mi ~6 min
Transit Merrick Road & Yorktown Street 0.32 mi ~7 min
Coffee Bagel Boss Cafe 0.32 mi ~7 min
Merrick Road, Oceanside
Restaurant Terrace Cafe 0.32 mi ~7 min
Merrick Road
Convenience 7-Eleven 0.33 mi ~7 min
Transit Merrick Road & Rockville Centre Parkway 0.34 mi ~7 min
Transit Merrick Road & Charing Cross Road 0.36 mi ~8 min
Pharmacy CVS Pharmacy 0.47 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 |
|---|---|---|
| 091922-01 | NY | Clinical Social Worker primary |
This provider holds licence 091922-01 issued in NY. 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 | 091922-01 | NY | primary |
| 101YA0400X | Addiction (Substance Use Disorder) Counselor Addiction (Substance Use Disorder) | — | — |
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 | 1003515172 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Feb 28, 2023 |
| Last updated | Feb 28, 2023 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Credential | LCSW, CASAC |
| Practice address |
2 KENT CT Rockville Centre, NY 11570 (516) 761-8909 |
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 | 5 | 1 | 5 | 1 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 1 | 1 | 1 | 1 | 5 |
Sum = 38 · next multiple of 10 = 40 · 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.