Katherine Ruiz-de-luzuriaga, M.D.
Katherine Ruiz-de-luzuriaga, M.D. is a Pediatric Infectious Diseases Physician in Worcester, MA, registered under NPI 1487638516. 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 55 LAKE AVE N DEPARTMENT OF PEDIATRIC IMMUNOLOGY/INFECTIOUS DISEASE, Worcester, MA 01655. 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 |
|---|---|---|
| 58569 | MA | Pediatric Infectious Diseases Physician primary |
| 58569 | MA | Pediatrics Physician |
| 58569 | MA | Pediatric Allergy/Immunology Physician |
This provider holds licence 58569 issued in MA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Infectious Disease
- PAC ID
- 1658457932
- Enrollment ID
- I20080326000985
Medicare enrolment is recorded as approved under the provider type Practitioner - Infectious Disease. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Pediatric Infectious Diseases covers
A pediatrician trained to care for children in the diagnosis, treatment and prevention of infectious diseases. This specialist can apply specific knowledge to affect a better outcome for pediatric infections with complicated courses, underlying diseases that predispose to unusual or severe infections, unclear diagnoses, uncommon diseases and complex or investigational treatments. NUCC Health Care Provider Taxonomy, code 2080P0208X
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 | |
|---|---|---|---|---|
| 2080P0208X | Pediatric Infectious Diseases Physician Pediatric Infectious Diseases | 58569 | MA | primary |
| 208000000X | Pediatrics Physician | 58569 | MA | |
| 2080P0201X | Pediatric Allergy/Immunology Physician Pediatric Allergy/Immunology | 58569 | MA |
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 | 1487638516 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Dec 1, 2005 |
| Last updated | Aug 25, 2023 |
| Status | Active |
| Sole proprietor | No |
| Credential | M.D. |
| Practice address |
55 LAKE AVE N DEPARTMENT OF PEDIATRIC IMMUNOLOGY/INFECTIOUS DISEASE Worcester, MA 01655 (774) 442-3947 Fax (774) 443-8733 |
| Mailing address |
PO BOX 415348 Boston, MA 02241 |
| Other identifiers |
J0747601
· Other (MA) 110045838A · Medicaid (MA) |
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 | 4 | 8 | 7 | 6 | 3 | 8 | 5 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 4 | 7 | 7 | 3 | 3 | 7 | 5 | 2 |
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.