Thomas Hennessey, MD
Thomas Hennessey, MD is an Emergency Medical Services (Emergency Medicine) Physician in Minneapolis, MN, registered under NPI 1861423196. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 2800 CHICAGO AVE SUITE 401, Minneapolis, MN 55407. 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 |
|---|---|---|
| 22165 | MN | Emergency Medical Services (Emergency… primary |
| 22165 | MN | Pain Medicine (Physical Medicine &… |
This provider holds licence 22165 issued in MN. 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 Emergency Medical Services covers
An emergency medicine physician who specializes in non-hospital based emergency medical services (e.g., disaster site, accident scene, transport vehicle, etc.) to provide pre-hospital assessment, treatment, and transport patients. NUCC Health Care Provider Taxonomy, code 207PE0004X
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 | |
|---|---|---|---|---|
| 207PE0004X | Emergency Medical Services (Emergency Medicine) Physician Emergency Medical Services | 22165 | MN | primary |
| 2081P2900X | Pain Medicine (Physical Medicine & Rehabilitation) Physician Pain Medicine | 22165 | MN |
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 | 1861423196 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jul 5, 2006 |
| Last updated | Sep 11, 2025 |
| Status | Active |
| Sole proprietor | No |
| Credential | MD |
| Practice address |
2800 CHICAGO AVE SUITE 401 Minneapolis, MN 55407 (952) 814-6600 |
| Mailing address |
3001 METRO DR SUITE 330 Bloomington, MN 55425 |
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 | 2 | 3 | 1 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 8 | 3 | 1 | 8 | 2 | 6 | 1 | 9 |
Sum = 64 · next multiple of 10 = 70 · check digit = 6 · actual last digit = 6
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.