Doctor profile · Federal record
Dr. Sumiko Armstead, MD
Nephrology Physician (CMS: Nephrology) · Hospitalist Physician · Cypress, TX
- NPI 1528267812
- 19 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 3 locations .
- Primary practice
-
27700 Northwest Fwy Ste 330
Cypress, TX 774336767
(281) 908-8047
fax (281) 456-3981 - Additional location
-
7600 Beechnut St Fl 8
Houston, TX 770744302
(713) 456-5686 - Additional location
-
909 Dairy Ashford RD Ste 207
Houston, TX 770795306 - Mailing address
-
Po Box 1536
Cypress, TX 774101536
Credentials & registration
- NPI registered
- July 2007 — 19 yrs on file
- Profile last updated
- March 19, 2026
- Year of graduation
- 2007 — 19 yrs since
- Specialty taxonomy
- 207RN0300X — NUCC code
- State license (1)
- Texas #N4916
- Medicaid
- TX #350958002
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1528267812. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
524
Distinct HCPCS
8
Medicare allowed
$77,981
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 168 | 55 | $121 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 150 | 61 | $123 | |
90961 |
Dialysis services, 2-3 physician visits per month (20 years or older) | 73 | 15 | $280 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 34 | 28 | $168 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 32 | 18 | $81 | |
90962 |
Dialysis services, 1 physician visit per month (20 years or older) | 23 | 12 | $191 | |
99239 |
Hospital discharge day management, more than 30 minutes | 23 | 23 | $118 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 21 | 21 | $161 |
In context: peer comparison
Among 3 peers in Cypress Nephrology Physician, average services per provider: 149. This provider delivers 3.5× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
420
Patients
131
Total drug cost
$100,720
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Allopurinol | Generic | 43 | 12 | $390 |
| Losartan Potassium | Generic | 41 | 18 | $386 |
| Atorvastatin Calcium | Generic | 40 | 28 | $401 |
| Furosemide | Generic | 37 | 18 | $346 |
| Nifedipine ER (Nifedipine) | Brand | 34 | 14 | $704 |
| Amlodipine Besylate | Generic | 31 | 15 | $146 |
| Carvedilol | Generic | 29 | 15 | $210 |
| Sevelamer Carbonate | Generic | 27 | 0 | $7,385 |
| Hydralazine Hcl | Generic | 24 | 0 | $198 |
| Lisinopril | Generic | 24 | 11 | $137 |
Hospital affiliations
Frequently asked questions
What is Dr. Sumiko Armstead's medical specialty?
Dr. Sumiko Armstead practices Nephrology Physician in Cypress, TX.
Where does Dr. Sumiko Armstead practice?
Dr. Sumiko Armstead practices at 27700 Northwest Fwy Ste 330, Cypress, TX 774336767. Office phone: 2819088047.
What is Dr. Sumiko Armstead's NPI?
Dr. Sumiko Armstead's National Provider Identifier (NPI) is 1528267812, issued by NPPES.
Does Dr. Sumiko Armstead accept Medicare assignment?
Dr. Sumiko Armstead does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Sumiko Armstead commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Established patient office or other outpatient visit (HCPCS 99214); Dialysis services, 2-3 physician visits per month (20 years or older) (HCPCS 90961). Source: CMS Medicare Physician & Other Practitioners file.