RALPH N DADO JR MD
RALPH N DADO JR MD is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1811156516, based in Oak Lawn, IL. It is classified under Eyewear Supplier.
Getting there
The practice address on file is 9621 SOUTHWEST HWY, Oak Lawn, IL 60453. 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 |
|---|---|---|
| 11473835 | Eyewear Supplier primary |
Licences are recorded in 0 states: . Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
- Status
- Approved
- Provider type
- Dme Supplier - Physician - Ophthalmology
- PAC ID
- 9436277613
- Enrollment ID
- O20100930099279
Medicare enrolment is recorded as approved under the provider type Dme Supplier - Physician - Ophthalmology. 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 Eyewear Supplier covers
An organization that provides spectacles, contact lenses, and other vision enhancement devices prescribed by an optometrist or ophthalmologist. NUCC Health Care Provider Taxonomy, code 332H00000X
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-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1811156516 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Jun 6, 2008 |
| Last updated | Jun 10, 2008 |
| Status | Active |
| Practice address |
9621 SOUTHWEST HWY Oak Lawn, IL 60453 (708) 425-7088 Fax (708) 425-8882 |
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 | 1 | 1 | 1 | 5 | 6 | 5 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 8 | 2 | 1 | 2 | 5 | 3 | 5 | 2 |
Sum = 54 · next multiple of 10 = 60 · 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.