Clifford Doss, RRT
Clifford Doss, RRT is a Pulmonary Diagnostics Registered Respiratory Therapist in Cushing, OK, registered under NPI 1710866165. This provider registers 3 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 601 E BROADWAY ST, Cushing, OK 74023. 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 |
|---|---|---|
| 4691 | OK | Pulmonary Diagnostics Registered… primary |
| 4691 | OK | Educational Registered Respiratory… |
| 4691 | OK | Pulmonary Function Technologist… |
This provider holds licence 4691 issued in OK. 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 Pulmonary Diagnostics covers
Included in the area of pulmonary diagnostics are the following; collection and analysis of physiological specimens, interpretation of physiological data, administration of tests of the cardiopulmonary system, and the conduct of both neurophysiological and sleep disorders studies. NUCC Health Care Provider Taxonomy, code 2279P1004X
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 | |
|---|---|---|---|---|
| 2279P1004X | Pulmonary Diagnostics Registered Respiratory Therapist Pulmonary Diagnostics | 4691 | OK | primary |
| 2279E1000X | Educational Registered Respiratory Therapist Educational | 4691 | OK | |
| 2279P1006X | Pulmonary Function Technologist Registered Respiratory Therapist Pulmonary Function Technologist | 4691 | OK |
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 | 1710866165 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Aug 29, 2025 |
| Last updated | Aug 29, 2025 |
| Status | Active |
| Sole proprietor | No |
| Credential | RRT |
| Practice address |
601 E BROADWAY ST Cushing, OK 74023 (479) 965-6219 |
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 | 7 | 1 | 0 | 8 | 6 | 6 | 1 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 7 | 2 | 0 | 7 | 6 | 3 | 1 | 3 |
Sum = 55 · next multiple of 10 = 60 · check digit = 5 · actual last digit = 5
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.