Sumiko Armstead, MD
NPI 1528267812ActiveIndividual· Internal Medicine, Nephrology· Cypress, TX
Internal Medicine, Nephrology (MD) in Cypress, Texas, trained at Baylor College of Medicine (class of 2007). Their prescriptions cost Medicare Part D more than their services did: $220,085 for 826 claims, against $78,995 paid for services in 2024.
Overview
| NPI | 1528267812 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 16, 2007 |
| Last updated in NPPES | Mar 19, 2026 |
| Certified by provider | Mar 19, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | N4916 | TX |
| Hospitalist | 208M00000X | N4916 | TX |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Nephrology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 173 |
|---|---|
| Services billed | 653 across 16 procedure codes |
| Paid by Medicare | $78,995 |
Part D prescriptions in 2024
| Prescriptions (claims) | 826 · 1,522 30-day fills |
|---|---|
| Patients | 177 |
| Total drug cost | $220,085 |
| Generic share | 84% of claims |
Education and affiliations
| Medical school | Baylor College of Medicine |
|---|---|
| Graduation year | 2007 |
| Medicare specialty | Nephrology |
| Secondary specialties | Hospitalist, Internal Medicine |
Medical group
- Memorial Hermann Medical GroupSugar Land, TX · 762 clinicians
Hospital affiliations
- Houston Methodist Cypress HospitalCypress, TX
- Houston Methodist West HospitalHouston, TX
- Memorial Hermann - Texas Medical CenterHouston, TX
- Memorial Hermann Hospital SystemHouston, TX
- Memorial Hermann Memorial City HospitalHouston, TX
Other facilities
- Davita Barker Cypress DialysisDialysis facility · Cypress, TX
- Davita Cypress Fairfield DialysisDialysis facility · Cypress, TX
- Fkc FairfieldDialysis facility · Cypress, TX
- Northwest Houston Dialysis CtrDialysis facility · Houston, TX
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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