What is Willem Bok's specialty?

Willem Bok (NPI 1942447883) is a Medicare-billing provider whose primary specialty is Anesthesiology in Austin, TX.

Where does Willem Bok practice?

Willem Bok practices in Austin, TX, based on the location reported in the CMS Medicare provider datasets for NPI 1942447883.

How much does Medicare pay Willem Bok?

Willem Bok (NPI 1942447883) received approximately $34K in total Medicare Part B payments, serving 381 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1942447883

Willem BokM.D.

AnesthesiologyAustin, TXI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

273

Unique beneficiaries

—

Total services

273

Distinct HCPCS

Medicare payment

$18K

Peer benchmark

Total Medicare services vs. 3,259 Anesthesiology providers in TX — top quintile (cohort median 184).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Willem Bok'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). 22 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
ASCENSION SETON	83	105
Clinical Pathology Laboratories, Inc. Clinical Laboratory · Austin, TX	38	63
Angela Esomeju Certified Registered Nurse Anesthetist (CRNA) · Austin, TX	26	26
Ian Mcloughlin Diagnostic Radiology · Austin, TX	25	44
Medical Park Tower Surgery Center, Llc Ambulatory Surgical Center · Austin, TX	23	28
Leah Belmares Certified Registered Nurse Anesthetist (CRNA) · Austin, TX	19	19
SCOTT & WHITE HOSPITAL - ROUND ROCK	19	37
John Manning Diagnostic Radiology · Austin, TX	18	26
City Of Austin Ambulance Service Provider · Austin, TX	18	20
CEDAR PARK HEALTH SYSTEM LP	17	25
ASCENSION SETON	16	24
Thad Labbe Ophthalmology · Taylor, TX	16	58

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