Bjoern Toennes, MD
Bjoern Toennes, MD is an Advanced Heart Failure and Transplant Cardiology Physician in Cleveland, OH, registered under NPI 1275772311. This provider registers 5 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 9500 EUCLID AVE MAIL CODE: J4-331, Cleveland, OH 44195. 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 |
|---|---|---|
| 129737 | OH | General Acute Care Hospital |
| 129737 | OH | Advanced Heart Failure and Transplant… primary |
| 129737 | OH | Internal Medicine Physician |
| 129737 | OH | Cardiovascular Disease Physician |
| 129737 | OH | Critical Care Medicine (Internal… |
This provider holds licence 129737 issued in OH. 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 Advanced Heart Failure and Transplant Cardiology covers
Specialists in Advanced Heart Failure and Transplant Cardiology would participate in the inpatient and outpatient management of patients with advanced heart failure across the spectrum from consideration for high-risk cardiac surgery, cardiac transplantation, or mechanical circulatory support, to pre-and post-operative evaluation and management of patients with cardiac transplants and mechanical support devices, and end-of-life care for patients with end-stage heart failure. NUCC Health Care Provider Taxonomy, code 207RA0001X
All registered taxonomy codes
This provider registers 5 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 282N00000X | General Acute Care Hospital | 129737 | OH | |
| 207RA0001X | Advanced Heart Failure and Transplant Cardiology Physician Advanced Heart Failure and Transplant Cardiology | 129737 | OH | primary |
| 207R00000X | Internal Medicine Physician | 129737 | OH | |
| 207RC0000X | Cardiovascular Disease Physician Cardiovascular Disease | 129737 | OH | |
| 207RC0200X | Critical Care Medicine (Internal Medicine) Physician Critical Care Medicine | 129737 | OH |
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 | 1275772311 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Feb 12, 2009 |
| Last updated | Jun 12, 2020 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Credential | MD |
| Practice address |
9500 EUCLID AVE MAIL CODE: J4-331 Cleveland, OH 44195 (216) 444-2779 Fax (216) 445-2536 |
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 | 7 | 7 | 2 | 3 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 2 | 5 | 5 | 5 | 7 | 4 | 3 | 2 |
Sum = 59 · next multiple of 10 = 60 · 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.