William Selim, MD
William Selim, MD is a Pediatrics Physician in Worcester, MA, registered under NPI 1083673149.
Getting there
The practice address on file is 630 PLANTATION ST, Worcester, MA 01605. 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 |
|---|---|---|
| 50186 | MA | Pediatrics Physician primary |
This provider holds licence 50186 issued in MA. 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 Pediatrics covers
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development. NUCC Health Care Provider Taxonomy, code 208000000X
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 | 1083673149 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 18, 2006 |
| Last updated | Feb 24, 2009 |
| Status | Active |
| Sole proprietor | No |
| Credential | MD |
| Practice address |
630 PLANTATION ST Worcester, MA 01605 (508) 852-8570 Fax (508) 852-1022 |
| Other identifiers |
28364
· CHILDRENS MEDICAL SECURIT H05070 · BLUE SHIELD HMO BLUE 042472266 · ONE HEALTH PLAN 4570514 · AETNA US HEALTHCARE 6658558 · CIGNA HEALTH PLAN 784189 · MVP HEALTH CARE 0181919 (MA) H05070 · MEDICARE B 1293416 · FALLON COMMUNITY HEALTH P 0181919 · MEDICAID WELFARE H05070 · BLUE CARE ELECT 28364 · HEALTHY START H05070 · BLUE SHIELD INDEMNITY 2047118 · FIRST HEALTH AA1270 · HARVARD PILGRIM HEALTHCAR |
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 | 8 | 3 | 6 | 7 | 3 | 1 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 7 | 3 | 3 | 7 | 6 | 1 | 8 |
Sum = 61 · next multiple of 10 = 70 · check digit = 9 · actual last digit = 9
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.