John Thao, BA, CRT , RCP
John Thao, BA, CRT , RCP is a Certified Respiratory Therapist in Las Vegas, NV, registered under NPI 1275944027. 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
The practice address on file is 2675 S JONES BLVD STE 113, Las Vegas, NV 89146. 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 |
|---|---|---|
| 874539 | NV | Nursing Care Agency |
| RC346 | NV | Certified Respiratory Therapist primary |
This provider holds licence 874539 issued in NV. 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 Respiratory Therapist, Certified covers
A Certified Respiratory Therapist (CRT) is a an entry level therapist who has passed a standardized written examination administered by the National Board for Respiratory Care (NBRC). CRTs provide diagnostic testing, therapeutics, monitoring, rehabilitation, and education to patients with disorders of the cardiopulmonary system. They provide these respiratory care services in all health care facilities and in the home. A CRT is a graduate of an associate degree program approved by the Commission on Accreditation of Allied Health Educational Programs (CAAHEP) and where applicable, is licensed by the state and is practicing within the scope of the license. NUCC Health Care Provider Taxonomy, code 227800000X
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 | |
|---|---|---|---|---|
| 251J00000X | Nursing Care Agency | 874539 | NV | |
| 227800000X | Certified Respiratory Therapist | RC346 | NV | primary |
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 | 1275944027 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 14, 2014 |
| Last updated | Jun 13, 2025 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Credential | BA, CRT , RCP |
| Practice address |
2675 S JONES BLVD STE 113 Las Vegas, NV 89146 (702) 665-4156 Fax (702) 749-3184 |
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 | 2 | 7 | 5 | 9 | 4 | 4 | 0 | 2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 2 | 5 | 5 | 9 | 4 | 8 | 0 | 4 |
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.