SONAR CLINICAL RESEARCH, LLC
SONAR CLINICAL RESEARCH, LLC is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1558186197, based in Riverdale, GA. The organization lists 3 taxonomy classifications, with Sleep Disorder Diagnostic Clinic/Center recorded as primary.
Getting there
The practice address on file is 483 UPPER RIVERDALE RD SW STE K, Riverdale, GA 30274. 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
NPPES does not list a state licence number for this record. That is not unusual — organizations and some provider types are not required to file one. Verify current licensure with the relevant state board before care.
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 Sleep Disorder Diagnostic covers
Definition to come... NUCC Health Care Provider Taxonomy, code 261QS1200X
All registered taxonomy codes
This provider registers 3 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 261QS1200X | Sleep Disorder Diagnostic Clinic/Center Sleep Disorder Diagnostic | — | — | primary |
| 261QR1100X | Research Clinic/Center Research | — | — | |
| 261QP2300X | Primary Care Clinic/Center Primary Care | — | — |
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-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1558186197 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Nov 19, 2024 |
| Last updated | Dec 6, 2025 |
| Status | Active |
| Practice address |
483 UPPER RIVERDALE RD SW STE K Riverdale, GA 30274 (470) 746-7814 Fax (678) 935-0790 |
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 | 5 | 5 | 8 | 1 | 8 | 6 | 1 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 5 | 1 | 8 | 2 | 8 | 3 | 1 | 9 |
Sum = 63 · next multiple of 10 = 70 · 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.