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William Byron Cook , ARNP

Nurse Practitioner - Pediatrics β€’ Houston, TX

Active NPI 1669490751 Individual Practitioner Male Practitioner Accepts Medicare assignment
Practice location in NPPES

6410 Fannin St Ste 700
Houston, TX 770305205

Call 7135006459 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

6410 Fannin St Ste 700

Houston, TX 770305205

Telephone 7135006459
Fax 7135000530
Organization at the Same NPPES Address or Phone
Ut Health Science Center - Pediatric Pulmonary Facility NPI 1578010500

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

CMS Doctors and Clinicians lists 1 group name: Ut Physicians. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Graduation Year

1989

30-day fills

17 standardized 30-day fills in 2013

CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.

What this does not show: 30-day fills

It is not a count of patients and not a measure of quality.

Part D drug cost

$87 in 2013

The total cost of these prescriptions in 2013, paid by Medicare drug plans, patients and other payers together.

What this does not show: Part D drug cost

A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.

Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2013.

Open Payments general payments, program year 2024

All general payments: $39.42 across 2 records.

By nature of payment

  • Food and Beverage: $39.42 across 2 records.

Reporting-company totals

  • LivaNova USA, Inc.: $39.42 across 2 records.

A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.

See the full table

Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2024 (published June 30, 2026).

Guide: How to read an Open Payments record

Years since graduation

37 years (graduated 1989)

CMS Doctors and Clinicians data list 1989 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2006

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, β€œDoes your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

William Cook has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists William Cook as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Houston and Texas

Billing and prescribing volume is not a quality rating.

Medicare Part D

Comparisons use 2024 data. The latest CMS data for William Cook are from 2013.

318 active clinicians are listed under Nurse Practitioner - Pediatrics with a practice address in Houston, TX (2,258 in Texas).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Houston

0% of these 318 clinicians have the CMS telehealth indicator.

7.2% of these 318 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Part D Prescribers (2013), CMS Open Payments (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo Β· Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments Β· Program Year 2024
Disclosure Year:

Program year 2024 (payments made January 1 – December 31, 2024): fewer than 11 records totaling $39.42.

Manufacturer Payment Nature Product Type Amount ($)
LivaNova USA, Inc.
Food and Beverage
In-kind items and services
VNS THERAPY SENTIVA MODEL 1000 GENERATOR General $21.20
LivaNova USA, Inc.
Food and Beverage
In-kind items and services
VNS THERAPY SENTIVA MODEL 1000 GENERATOR General $18.22

Source: CMS Open Payments, program year 2024, released June 30, 2026.

Medicare Part D Prescribing Profile & Medications

Medicare Part D prescriptions filled, including refills, in 2013.

CMS Part D Β· Data Year 2013
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Amoxicillin Amoxicillin 17 116 $86.74 16

Source: CMS Part D by Provider and Drug, 2013; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2026-03-25
Nurse Practitioner - Pediatrics Primary Specialty

NUCC Taxonomy Code: 363LP0200X

License # reported to NPPES TX AP122534
Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Texas Medical Board.
Look Up on State Board Site

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid ID
9637570 (WA)
Medicaid ID
4301414 (MT)
Medicaid ID
806632600 (ID)
Medicaid ID
NP165WA (AK)

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - NURSE PRACTITIONER

Medicare Enrollment ID

I20121017000896

Enrollment State Jurisdiction

TX

PECOS Control ID

5698786606

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

Ut Physicians

17150 El Camino Real, Houston, TX 770582738

Phone: 2814886347

Ut Physicians

6410 Fannin St, Houston, TX 770303005

Ut Physicians

17150 El Camino Real A, Houston, TX 770582738

Phone: 7134866425

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

8 Historical Events
πŸ“
Updated Business Mailing Address March 25, 2026

Registered at 6410 FANNIN ST STE 500, HOUSTON, TX 770303005 (Tel: 7133256516)

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) March 25, 2026

Nurse Practitioner (license number reported to NPPES: TX AP122534)

βœ…
NPI Profile Active July 20, 2016

NPI status registered as active in NPPES database

πŸ“
Practice Location (Initial Record) July 20, 2016

Registered at 6410 FANNIN ST STE 700, HOUSTON, TX 770305205 (Tel: 7135006459)

πŸ“
Business Mailing Address (Initial Record) July 20, 2016

Registered at 2559 MEDICAL DR, STE A, ALAMOGORDO, NM 883108704 (Tel: 7135006459)

πŸ‘€
Provider Name / Credentials (Initial Record) July 20, 2016

Recorded as WILLIAM COOK, ARNP

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) July 20, 2016

Nurse Practitioner (license number reported to NPPES: NM CNP-02973)

🟒
Initial NPI Registration & Enumeration July 17, 2006

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1669490751
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: July 17, 2006
Last Update: March 25, 2026
Sole Proprietor: No

Other Nurse Practitioner - Pediatrics Specialists in Houston

All Nurse Practitioner - Pediatrics Specialists in Houston

Mailing Address

6410 Fannin St Ste 500

Houston, TX 770303005

Phone: 7133256516

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.