SHIRLEY ANN RIGGS, M.D., F.A.C.P., P.A.
SHIRLEY ANN RIGGS, M.D., F.A.C.P., P.A. is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1336458512, based in Houston, TX. It is classified under Hematology (Internal Medicine) Physician.
Getting there
The practice address on file is CHI ST. LUKE'S TEXAS HEART INSTITUTE CLINIC, SUITE P115 1101 BATES AVENUE, MC4-160, Houston, TX 77030. 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
NPPES does not list a state licence number for this record. That is not unusual — organizations and some provider types are not required to file one. Verify current licensure with the relevant state board before care.
- Status
- Approved
- Provider type
- Part B Supplier - Clinic/group Practice
- PAC ID
- 2365624673
- Enrollment ID
- O20110308000680
Medicare enrolment is recorded as approved under the provider type Part B Supplier - Clinic/group Practice. 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 Hematology covers
An internist with additional training who specializes in diseases of the blood, spleen and lymph. This specialist treats conditions such as anemia, clotting disorders, sickle cell disease, hemophilia, leukemia and lymphoma. NUCC Health Care Provider Taxonomy, code 207RH0000X
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 | 1336458512 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Oct 5, 2010 |
| Last updated | Dec 3, 2021 |
| Status | Active |
| Practice address |
CHI ST. LUKE'S TEXAS HEART INSTITUTE CLINIC, SUITE P115 1101 BATES AVENUE, MC4-160 Houston, TX 77030 (713) 529-4343 Fax (713) 790-1871 |
| Mailing address |
8205 BRAESMAIN DRIVE #20609 Houston, TX 77225 |
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 | 3 | 3 | 6 | 4 | 5 | 8 | 5 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 3 | 6 | 6 | 8 | 5 | 7 | 5 | 2 |
Sum = 68 · next multiple of 10 = 70 · check digit = 2 · actual last digit = 2
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.