Dr. William R. Cook, MD

  • Kent, WA
  • Internist
NPI1750344263
Medicare services, 2021
349
Part D claims, 2021
21
Industry payments
$239
Medical group
1
State license
1
Practice address
19625 62nd S Ave, Kent, WA 98032
Practice phone
Call (843) 851-3800
Professional email
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Personal email
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Mobile number
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Social profiles

Medical group

Skagit Regional Clinics

Mount Vernon, Washington

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Dr. William R. Cook is an internist in Kent, Washington

Dr. Cook practices with Skagit Regional Clinics, a medical group.

Dr. Cook's NPI, 1750344263, was assigned on April 7, 2006. Dr. Cook graduated from Medical University of South Carolina College of Medicine in 1970. Dr. Cook holds South Carolina license 6106.

NPI and contact details
NPI enumeration date
April 7, 2006
NPI status
Active
Practice phone
(843) 851-3800
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
82
Medical school graduation
1970

Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data

Dr. William R. Cook's practice address is in Kent, Washington

Dr. Cook's practice address in the NPI Registry is 19625 62nd S Ave, Kent, WA 98032, in King County. The practice phone is (843) 851-3800.

  • NPI Registry address
    19625 62nd S Ave, Kent, WA 98032 · King CountyPhone(843) 851-3800

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. William R. Cook is affiliated with 1 medical group

Dr. Cook is part of Skagit Regional Clinics, a medical group in Mount Vernon, Washington.

Source: Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. William R. Cook's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Cook practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Skagit Regional ClinicsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. William R. Cook is one of 2,689 internists in Washington

Internal medicine is Dr. Cook's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Cook is licensed in South Carolina.

Specialties and state licenses

  • Internal medicine, South CarolinaPrimaryLicense 6106 · taxonomy 207R00000X

Internists near Dr. Cook

Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. William R. Cook billed Medicare for 349 services in 2021

CMS data shows 349 Medicare services from Dr. Cook across 7 procedure codes in 2021. Medicare paid $14,529 for them.

Medicare services, 2021349
Paid by Medicare$14,529
Procedure codes7

Dr. Cook's Medicare services by type, 2020 to 2021

  • 2020
  • 2021
Office and hospital visits
2020: 3902021: 31719%
Tests and treatments
2020: 672021: 3252%

Where Dr. Cook's Medicare services took place, 2021

  • In an office17851%
  • In a facility17149%

Dr. Cook compared with the Washington median for internists, 2021

  • Dr. Cook
  • Washington median
Medicare services
349vs 364Close to median
Part D claims
21vs 18288% below

Medians across 2,604 internists in Washington with Dmand AI profiles that report each measure.

Dr. Cook's most billed Medicare procedure codes, 2021

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. William R. Cook's patients have a median age of 64

Across all payers, Dmand AI patient panel data puts Dr. Cook's median patient age at 64, with 38% women.

Dr. Cook's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 64

Patient panel by sex, all payers

  • Women38%
  • Men62%

Source: Dmand AI Patient Panel Data

Dr. William R. Cook wrote 21 Medicare Part D claims in 2021

In 2021, Dr. Cook wrote 21 Medicare Part D claims. They cover 1 drug, with $357 in total drug cost. In 2020, CMS named 39 claims across 1 drug.

Part D claims, 202121
Drugs named by CMS1
Total drug cost$357

Dr. Cook's most prescribed drugs by claims, 2021

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2020 to 2021

  • 2020
  • 2021
Claims for drugs CMS names
2020: 392021: 2146%

Drugs named by CMS: 1 in 2021, 1 in 2020.

See all prescribing by Dr. Cook

Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026

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Dr. William R. Cook received $239 in industry payments from 2016 to 2018

CMS Open Payments shows 9 general payments to Dr. Cook from 6 drug and device companies from 2016 to 2018. Food and beverage make up the largest share, 100% of the total. Jazz Pharmaceuticals Inc. paid the most, $119.

General payments to Dr. Cook by program year, 2016 to 2018

Companies that paid Dr. Cook the most, 2016 to 2018

Share is of all general payments to this clinician.

See all payments to Dr. Cook

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. William R. Cook graduated from Medical University of South Carolina College of Medicine

Dr. Cook graduated from Medical University of South Carolina College of Medicine in 1970.

  1. Medical schoolMedical University of South Carolina College of Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. William R. Cook's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. William R. Cook

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. William R. Cook's NPI number?

Dr. William R. Cook's NPI number is 1750344263. It was assigned on April 7, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. William R. Cook?

Dr. William R. Cook is an internist in Kent, Washington. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. William R. Cook practice?

Dr. Cook practices at 19625 62nd S Ave, Kent, WA 98032. Dr. Cook's primary practice is Skagit Regional Clinics, a medical group.

What is Dr. William R. Cook's office phone number?

The practice phone on file for Dr. Cook is (843) 851-3800.

What is Dr. William R. Cook's medical license number?

Dr. Cook holds South Carolina license 6106.

What medical group is Dr. William R. Cook part of?

Dr. Cook is part of Skagit Regional Clinics in Mount Vernon, Washington.

Does Dr. William R. Cook accept Medicare?

Yes. CMS data shows Dr. Cook billed Medicare for 349 services in 2021.

What services does Dr. William R. Cook bill to Medicare?

In 2021, Dr. Cook's most billed Medicare services were care management and other visits (99441), office visit, established patient (99213) and office visit, new patient (99202).

Where did Dr. William R. Cook go to medical school?

Dr. Cook graduated from Medical University of South Carolina College of Medicine in 1970.

What drugs does Dr. William R. Cook prescribe most?

In 2021 Medicare Part D data, Dr. Cook's most prescribed drugs by claims were Pramipexole Dihydrochloride.

Has Dr. William R. Cook received payments from drug or device companies?

CMS Open Payments shows $239 in general payments to Dr. Cook from 6 companies from 2016 to 2018. The largest total came from Jazz Pharmaceuticals Inc.

How long has Dr. William R. Cook been practicing?

Dr. Cook graduated from medical school in 1970, 56 years ago.

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