Cynthia Longway, APRN CNS
Cynthia Longway, APRN CNS is an Adult Psychiatric/Mental Health Clinical Nurse Specialist in Warwick, RI, registered under NPI 1861447831. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
The practice address on file is 828 TOLL GATE RD, Warwick, RI 02886. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| APRN00031 | RI | Adult Psychiatric/Mental Health Clinical… primary |
This provider holds licence APRN00031 issued in RI. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Certified Clinical Nurse Specialist (cns)
- PAC ID
- 0648439166
- Enrollment ID
- I20171229000045
Medicare enrolment is recorded as approved under the provider type Practitioner - Certified Clinical Nurse Specialist (cns). Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Psychiatric/Mental Health, Adult covers
Definition to come... NUCC Health Care Provider Taxonomy, code 364SP0809X
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 | 1861447831 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 24, 2006 |
| Last updated | Aug 1, 2025 |
| Status | Active |
| Sole proprietor | Yes |
| Credential | APRN CNS |
| Practice address |
828 TOLL GATE RD Warwick, RI 02886 (401) 385-3936 Fax (401) 397-3488 |
| Mailing address |
140 LAKE DR West Greenwich, RI 02817 |
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 | 8 | 6 | 1 | 4 | 4 | 7 | 8 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 8 | 3 | 1 | 8 | 4 | 5 | 8 | 6 |
Sum = 69 · next multiple of 10 = 70 · check digit = 1 · actual last digit = 1
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.