What is Sumiko Armstead's specialty?

Sumiko Armstead (NPI 1528267812) is a Medicare-billing provider whose primary specialty is Nephrology in Cypress, TX.

Where does Sumiko Armstead practice?

Sumiko Armstead practices in Cypress, TX, based on the location reported in the CMS Medicare provider datasets for NPI 1528267812.

How much does Medicare pay Sumiko Armstead?

Sumiko Armstead (NPI 1528267812) received approximately $79K in total Medicare Part B payments, serving 173 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1528267812

Sumiko ArmsteadMD

PRACTICESURGERY CLINIC OF GREATER HOUSTON, PLLCSee all providers at this practice →

NephrologyCypress, TXI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

227

Unique beneficiaries

—

Total services

577

Distinct HCPCS

Medicare payment

$64K

Peer benchmark

Total Medicare services vs. 883 Nephrology providers in TX — bottom quintile (cohort median 1,432).

PRESCRIBING · PART D · 2024

Total Rx claims

573

Beneficiaries

—

Total drug cost

$197K

Distinct drugs

Brand share

35.4%

Top prescribed drugs

Furosemide56 claims

Amlodipine Besylate46 claims

Nifedipine44 claims

Carvedilol35 claims

Sevelamer Carbonate35 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

REFERRAL NETWORK

Where Sumiko Armstead's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 46 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
City Of Houston Ambulance Service Provider · Houston, TX	77	401
Jianwei Feng Cardiology · Houston, TX	59	345
Chris Ojeih Hospitalist · Houston, TX	51	226
DALTON, STEPHEN	49	232
Abdul Rauf Zahid Family Practice · Amarillo, TX	44	498
Justin Tholany Diagnostic Radiology · Houston, TX	39	187
Chun Xie Nephrology · Houston, TX	38	392
Jeffrey Goldstein Diagnostic Radiology · Houston, TX	37	171
Patrick Johnson Diagnostic Radiology · Houston, TX	34	165
Andrew Ginzel Diagnostic Radiology · Houston, TX	31	133
Timothy Painter Diagnostic Radiology · Houston, TX	31	138
American Medical Response Of Texas Inc Ambulance Service Provider · Houston, TX	31	109

Refers patients to

Outbound — where patients go next

No outbound pairs above the suppression threshold.

Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history

Healthparse Signals

Monitor this provider for changes — dated NPI change events