NPI age
20 years
Enumerated 2005-11-07
● Active
Type 1 · Individual
Swaminathan Padmanabhan Iyer, M.D.
Iyer is 1 of 48 internal medicine providers in Houston and 1 of 78 in Texas.
Primary specialty
Internal Medicine
Plus 2 subspecialties
Licensed in
TX, NY
2 states
Status
Active
No deactivations on record
Last NPPES update
2019-03-27
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 78 active internal medicine providers in Texas.
NPI age
20 years
↑ 4 yr above median (16 yr)
State licenses
2 states
Top 85% — 14% of peers are multi-state
Subspecialties
1
In the 52% of peers with subspecialties
NPI lifetime · 2005 → 2026
2005-11Enumerated in NPPES
2005
2026
Where they practice
Practice location
1515 Holcombe Blvd
Houston, TX 770304009
Mailing address
P O Box 4439
Houston, TX 772104439
Additional practice locations
1 secondary location on file with NPPES.
Location 2
6445 Main St Fl 21
Houston, TX 770301502
Specialties
-
Internal Medicine PrimaryAn 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.
-
Internal MedicineAn internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine...
Identifiers
| Type | Value | Notes |
|---|---|---|
| 05 (TX) | 200008504 | |
| 01 (TX) | 200008510 | CSHCN |
| 01 (TX) | 8JP566 | BCBS |
| 05 (TX) | 200008503 | |
| 05 (TX) | 200008506 | |
| 05 (TX) | 200008509 | |
| 05 (TX) | 02499136 | |
| 01 (TX) | 1063493229 | BLUE CROSS BLUE SHIELD |
| 05 (TX) | 200008505 |
Multi-state credentialing: Licensed in 2 states. Useful context for credentialers building cross-state provider networks.
Practice context
Part of a multi-provider practice. 3675 other active providers share this practice address in NPPES.
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- Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
- Check the state license is currently active.State licensing boards publish current status; NPPES does not.
- Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.