Samuel Essma, MD
Samuel Essma, MD is a Diagnostic Radiology Physician in Alton, IL, registered under NPI 1457361065.
Getting there
The practice address on file is 1 MEMORIAL DR ALTON MEMORIAL HOSPITAL, Alton, IL 62002. 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 |
|---|---|---|
| 036084761 | IL | Diagnostic Radiology Physician primary |
This provider holds licence 036084761 issued in IL. 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 Diagnostic Radiology covers
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease. NUCC Health Care Provider Taxonomy, code 2085R0202X
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 | 1457361065 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Aug 8, 2006 |
| Last updated | Apr 9, 2010 |
| Status | Active |
| Sole proprietor | No |
| Credential | MD |
| Practice address |
1 MEMORIAL DR ALTON MEMORIAL HOSPITAL Alton, IL 62002 (618) 463-7415 Fax (314) 821-2180 |
| Mailing address |
55 WESTPORT PLAZA DRIVE SUITE 300 St Louis, MO 63146 |
| Other identifiers |
1390
· Other 431725842MID · Other 225826 · Other 2781 · Other 46033 · Other 300066977 · Other 300066982 · Other F42701 · Other 136331 · Other 1600001 · Other 300066972 · Other 0006021895 · Other 0360847611 · Medicaid (IL) 300066 · Other |
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 | 5 | 7 | 3 | 6 | 1 | 0 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 4 | 1 | 7 | 6 | 6 | 2 | 0 | 3 |
Sum = 55 · next multiple of 10 = 60 · check digit = 5 · actual last digit = 5
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.