William R. Clark II

  • Ketchikan, AK
  • Urologist
NPI1073567079
Medicare services, 2022
107
Part D claims, 2024
315
Publications
1
Clinical trials
3
Hospital affiliations
1
Practice address
3100 Tongass Avenue, Ketchikan, AK 99901
Practice phone
Call (907) 225-5171
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

PeaceHealth Ketchikan Medical Center

Hospital · Ketchikan, Alaska

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William R. Clark II is a urologist in Ketchikan, Alaska

William Clark practices at PeaceHealth Ketchikan Medical Center in Ketchikan, Alaska, part of PeaceHealth.

William Clark's NPI, 1073567079, was assigned on May 22, 2006. William Clark graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science in 1978. William Clark holds Washington license MD61117110.

NPI and contact details
NPI enumeration date
May 22, 2006
NPI status
Active
Practice phone
(907) 225-5171
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
74
Medical school graduation
1978

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

William R. Clark II practices at PeaceHealth Ketchikan Medical Center in Ketchikan, Alaska

William Clark's primary practice is PeaceHealth Ketchikan Medical Center, at 3100 Tongass Avenue, Ketchikan, AK 99901 in Ketchikan Gateway Borough. The practice phone is (907) 225-5171.

Source: Dmand AI Affiliation Data

William R. Clark II is affiliated with 2 sites of care and 3 medical groups

William Clark's primary practice is PeaceHealth Ketchikan Medical Center in Ketchikan, Alaska, part of PeaceHealth. The medical group on file is PeaceHealth Ketchikan Medical Center. Dmand AI also links William Clark to 2 more medical groups and 1 physician office, each named with a free account.

See all 5 affiliations for William Clark

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at William R. Clark II's practice

Dmand AI tracks the electronic health record (EHR) system at each site where William Clark practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
PeaceHealth Ketchikan Medical CenterAvailable with a free account
+1 more site and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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William R. Clark II is one of 27 urologists in Alaska

Urology is William Clark's primary specialty in the NPI Registry, under taxonomy code 208800000X. William Clark is board certified in urology by the American Board of Urology. Dmand AI has William Clark's licenses on file in 4 states: Washington, Alaska, Illinois and Minnesota.

Specialties and state licenses

  • Urology, WashingtonPrimaryLicense MD61117110 · 2020 to 2026 · taxonomy 208800000X
  • Alaska licenseLicense AK1625 · 1979 to 2026
  • Illinois license1980 to 2026
  • Minnesota license1982 to 1986

Clinical focus

Dmand AI lists kidney stone disease, prostate cancer and urinary endoscopy among the conditions William Clark treats.

Urologists near William Clark

Counts of urologists 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

William R. Clark II billed Medicare for 107 services in 2022

CMS data shows 107 Medicare services from William Clark across 3 procedure codes in 2022, all of them office visits. Medicare paid $13,222 for them. Every service was in an office.

Medicare services, 2022107
Paid by Medicare$13,222
Procedure codes3

William Clark's Medicare services by type, 2020 to 2022

  • 2020
  • 2022
Office and hospital visits
2020: 1,1702022: 10791%
Drugs given in the office
2020: 23,8992022: 0100%
Imaging
2020: 1662022: 0100%
Tests and treatments
2020: 2042022: 0100%
Surgery
2020: 2442022: 0100%

William Clark compared with the Alaska median for urologists, 2022

  • William Clark
  • Alaska median
Medicare services
107vs 49979% below
Part D claims
239vs 242Close to median

Medians across 28 urologists in Alaska with Dmand AI profiles that report each measure.

William Clark's most billed Medicare procedure codes, 2022

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

William R. Clark II's patients have a median age of 73

Across all payers, Dmand AI patient panel data puts William Clark's median patient age at 73, with 27% women.

William Clark's patients across all payers

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

Patient panel by age, all payers

Median age 73

Patient panel by sex, all payers

  • Women27%
  • Men72%

Source: Dmand AI Patient Panel Data

William R. Clark II wrote 315 Medicare Part D claims in 2024

In 2024, William Clark wrote 315 Medicare Part D claims for 82 patients. 92% of them were for generic drugs. CMS names the drug for 239 of them, across 9 drugs with 11 or more claims each, at $12,745 in total drug cost. In 2023, CMS named 239 claims across 7 drugs.

Part D claims, 2024315
Drugs named by CMS9
Total drug cost$12,745
Part D patients82

William Clark's Part D claims by kind of drug, 2024

  • Generic289 claims92%
  • Brand-name26 claims8%

William Clark's most prescribed drugs by claims, 2024

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

Drug classes CMS tracks in William Clark's Part D claims, 2024

  • Antibiotics6%20 of 315 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 2392024: 239No change

Drugs named by CMS: 9 in 2024, 7 in 2023.

See all prescribing by William Clark

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

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William R. Clark II has 1 publication on record

Dmand AI links 1 paper to William Clark in 2017. William Clark's most frequent co-authors are Nizar Abdelfattah, MD, Srinivas Reddy Sadda, MD and Charles Clifton Wykoff, MD, PhD.

Papers1

William Clark's most frequent co-authors

Recent publications by William Clark

See all 1 publications and co-authors

See who William Clark researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who William Clark works with, so you can find a warm path to the right urologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

William R. Clark II has worked on 3 clinical trials

Dmand AI links William Clark to 3 clinical trials. 1 is still active or recruiting. Conditions studied include Mesothelioma, Non-Muscle Invasive Bladder Neoplasms and Neoplasms, Mesothelial.

Clinical trials with William Clark by phase

  1. NonePhase 1: no trials
  2. 1Phase 2: 1 trial
  3. 1Phase 2/3: 1 trial
  4. NonePhase 3: no trials
  5. NonePhase 4: no trials

Conditions in William Clark's trials

  • Mesothelioma
  • Non-Muscle Invasive Bladder Neoplasms
  • Neoplasms, Mesothelial
  • Urinary Bladder Neoplasms

Investigators on the most trials with William Clark

Recent clinical trials with William Clark

Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)

William R. Clark II received $19,786 in industry payments from 2016 to 2024

CMS Open Payments shows 210 general payments to William Clark from 36 drug and device companies from 2016 to 2024. Travel and lodging make up the largest share, 44% of the total. Astellas Pharma Global Development paid the most, $6,173. It also lists 17 research payments totaling $8,482 from 2016 to 2019.

General payments to William Clark by program year, 2016 to 2024

General payments to William Clark by kind, 2016 to 2024

$19.8Kin total
  • Travel and lodging$8,75944%
  • Food and beverage$5,87430%
  • Consulting fees$4,93025%
  • Education$2231%

Companies that paid William Clark the most, 2016 to 2024

Share is of all general payments to this clinician.

See all payments to William Clark

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

William R. Clark II graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science

William Clark graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science in 1978.

  1. Medical schoolChicago Medical School at Rosalind Franklin University of Medicine and Science
  2. Board certified in urologyAmerican Board of Urology

Source: Dmand AI Professional Profile Data

William R. Clark II accepts plans from 5 insurance carriers

William Clark is in network with 5 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 3. Check the plan with the practice before a visit.

  • Aetna
  • United Healthcare
  • Blue Cross Blue Shield of Michigan
  • AK State Medicaid
  • CMS Medicare

Plan types William Clark accepts, by number of carriers

  1. HMO3
  2. Medicare3
  3. POS3
  4. PPO3
  5. EPO1
  6. Medicaid1

Source: Dmand AI Insurance Network Data

Sources for William R. Clark II'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 phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy 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)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Clinical trials and co-investigatorsDmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network 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 William R. Clark II

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

What is William R. Clark II's NPI number?

William R. Clark II's NPI number is 1073567079. It was assigned on May 22, 2006, and it is active in the NPI Registry.

What does William R. Clark II specialize in?

William R. Clark II is a urologist in Ketchikan, Alaska. The primary specialty in the NPI Registry is Urology Physician (taxonomy code 208800000X).

Where does William R. Clark II practice?

William Clark practices at 3100 Tongass Avenue, Ketchikan, AK 99901. William Clark's primary practice is PeaceHealth Ketchikan Medical Center in Ketchikan, Alaska, part of PeaceHealth. Dmand AI also links William Clark to 2 medical groups and 1 physician office.

What is William R. Clark II's office phone number?

The practice phone on file for William Clark is (907) 225-5171.

What is William R. Clark II's medical license number?

William Clark holds Washington license MD61117110, one of the licenses on file in 4 states.

Which states has William R. Clark II been licensed in?

Dmand AI has state licenses on file for William Clark in Washington (2020 to 2026), Alaska (1979 to 2026), Illinois (1980 to 2026) and Minnesota (1982 to 1986).

Which hospitals is William R. Clark II affiliated with?

William Clark practices at PeaceHealth Ketchikan Medical Center in Ketchikan, Alaska.

What medical group is William R. Clark II part of?

William Clark is linked to PeaceHealth Ketchikan Medical Center. Dmand AI links William Clark to 2 more medical groups.

Does William R. Clark II accept Medicare?

Yes. CMS data shows William Clark billed Medicare for 107 services in 2022.

Is William R. Clark II board certified?

Yes. William Clark is board certified in urology by the American Board of Urology.

Show 8 more questionsShow fewer questions

What services does William R. Clark II bill to Medicare?

In 2022, William Clark's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and office visit, established patient (99215).

Where did William R. Clark II go to medical school?

William Clark graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science in 1978.

What drugs does William R. Clark II prescribe most?

In 2024 Medicare Part D data, William Clark's most prescribed drugs by claims were Tamsulosin HCl, Allopurinol and Finasteride.

Has William R. Clark II received payments from drug or device companies?

CMS Open Payments shows $19,786 in general payments to William Clark from 36 companies from 2016 to 2024. The largest total came from Astellas Pharma Global Development.

How long has William R. Clark II been practicing?

William Clark graduated from medical school in 1978, 48 years ago.

Does William R. Clark II do research?

Dmand AI links 1 publication to William Clark. William Clark has worked on 3 clinical trials.

Who does William R. Clark II publish with?

William Clark's most frequent co-authors are Nizar Abdelfattah, MD (1 shared paper), Srinivas Reddy Sadda, MD (1 shared paper) and Charles Clifton Wykoff, MD, PhD (1 shared paper).

What insurance does William R. Clark II accept?

William Clark is in network with 5 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 3. Check the plan with the practice before a visit.

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