What is Colville Williams's specialty?

Colville Williams (NPI 1861490005) is a Medicare-billing provider whose primary specialty is Nephrology in Houston, TX.

Where does Colville Williams practice?

Colville Williams practices in Houston, TX, based on the location reported in the CMS Medicare provider datasets for NPI 1861490005.

How much does Medicare pay Colville Williams?

Colville Williams (NPI 1861490005) received approximately $92K in total Medicare Part B payments, serving 157 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1861490005

Colville Williams

PRACTICEC T WILLIAMS, PASee all providers at this practice →

NephrologyHouston, TXI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

230

Unique beneficiaries

—

Total services

636

Distinct HCPCS

Medicare payment

$84K

Peer benchmark

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

PRESCRIBING · PART D · 2024

Total Rx claims

530

Beneficiaries

—

Total drug cost

$83K

Distinct drugs

Brand share

15.7%

Top prescribed drugs

Calcitriol104 claims

Nifedipine40 claims

Amlodipine Besylate39 claims

Hydralazine Hcl38 claims

Losartan Potassium37 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$45

Payment records

By payment type

Food and Beverage$45

Top paying entities

Food and Beverage$45

REFERRAL NETWORK

Where Colville Williams'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). 27 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
John Pagani Diagnostic Radiology · Houston, TX	61	1,080
Randall Stenoien Diagnostic Radiology · Houston, TX	49	810
Byron Bohnn Diagnostic Radiology · Houston, TX	46	938
Joseph Gathe Infectious Disease · Houston, TX	43	9,530
Saween Thompson Diagnostic Radiology · Houston, TX	29	292
Namrata Goel Nephrology · Houston, TX	28	443
CORVA CLINICS, LLC-WEBSTER	28	489
Robin Boliver-Campbell Internal Medicine · Houston, TX	27	1,704
SPECTRA LABORATORIES INC	26	121
Quest Diagnostics Clinical Laboratories Inc Clinical Laboratory · Houston, TX	23	189
Sandeep Amesur Diagnostic Radiology · Houston, TX	22	255
Moe Zaw Internal Medicine · Houston, TX	22	423

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