Peter Hesslein, MD
Peter Hesslein, MD is a Pediatric Cardiology Physician in Seattle, WA, registered under NPI 1003979071. 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 1101 MADISON ST STE 800, Seattle, WA 98104. 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 |
|---|---|---|
| MD00044176 | WA | Pediatric Cardiology Physician primary |
| MD00044176 | WA | Pediatrics Physician |
This provider holds licence MD00044176 issued in WA. 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 Pediatric Cardiology covers
A pediatric cardiologist provides comprehensive care to patients with cardiovascular problems. This specialist is skilled in selecting, performing and evaluating the structural and functional assessment of the heart and blood vessels, and the clinical evaluation of cardiovascular disease. NUCC Health Care Provider Taxonomy, code 2080P0202X
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 | |
|---|---|---|---|---|
| 2080P0202X | Pediatric Cardiology Physician Pediatric Cardiology | MD00044176 | WA | primary |
| 208000000X | Pediatrics Physician | MD00044176 | WA |
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 | 1003979071 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Dec 19, 2006 |
| Last updated | May 29, 2012 |
| Status | Active |
| Sole proprietor | No |
| Credential | MD |
| Practice address |
1101 MADISON ST STE 800 Seattle, WA 98104 (206) 215-2700 Fax (206) 215-2702 |
| Mailing address |
PO BOX 84026 Seattle, WA 98124 |
| Other identifiers |
0189723
· LABOR AND INDUSTRIES (WA) 8407348 (WA) |
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 | 0 | 0 | 3 | 9 | 7 | 9 | 0 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 9 | 7 | 9 | 0 | 5 |
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.