George Chacko, M.D.
George Chacko, M.D. is a Nuclear Imaging & Therapy Physician in Oklahoma City, OK, registered under NPI 1891837787. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
The practice address on file is 8224 SILVER XING, Oklahoma City, OK 73132. 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 |
|---|---|---|
| 17461 | OK | Nuclear Imaging & Therapy Physician primary |
This provider holds licence 17461 issued in OK. 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 - Nuclear Medicine
- PAC ID
- 8426959115
- Enrollment ID
- I20040115001042
Medicare enrolment is recorded as approved under the provider type Practitioner - Nuclear Medicine. 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 Nuclear Imaging & Therapy covers
A nuclear medicine physician who specializes in nuclear imaging and therapy. NUCC Health Care Provider Taxonomy, code 207UN0902X
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 | 1891837787 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Feb 13, 2007 |
| Last updated | Mar 5, 2021 |
| Status | Active |
| Sole proprietor | Yes |
| Credential | M.D. |
| Practice address |
8224 SILVER XING Oklahoma City, OK 73132 (405) 722-4645 |
| Mailing address |
2714 LAMOND HILL AVE Edmond, OK 73034 |
| Other identifiers |
100827610A
· Medicaid (OK) 360004269 · 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 | 8 | 9 | 1 | 8 | 3 | 7 | 7 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 8 | 9 | 1 | 7 | 3 | 5 | 7 | 7 |
Sum = 73 · next multiple of 10 = 80 · check digit = 7 · actual last digit = 7
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.