Dr. William W. Harless, MD, PhD

  • Bryan, OH
  • Medical oncologist
NPI1528100948PAC ID1254439664
Medicare services, 2024
148
Medicare patients, 2024
111
Part D claims, 2024
355
Publications
10
MIPS score, 2024
91
Practice address
433 West High Street, Bryan, OH 43506
Practice phone
Call (419) 636-1131
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Parkview Bryan Hospital

Hospital · Bryan, Ohio

See all 10 affiliations

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Dr. William W. Harless is a medical oncologist in Bryan, Ohio

Dr. Harless practices at Parkview Bryan Hospital in Bryan, Ohio, part of Parkview Health System.

Dr. Harless' NPI, 1528100948, was assigned on February 13, 2007. Dr. Harless holds West Virginia license 21423.

NPI and contact details
Medicare PAC ID
1254439664
NPI enumeration date
February 13, 2007
NPI status
Active
Practice phone
(419) 636-1131
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
56
Medical school graduation
1996

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

Dr. William W. Harless practices at Parkview Bryan Hospital in Bryan, Ohio

Dr. Harless' primary practice is Parkview Bryan Hospital, at 433 West High Street, Bryan, OH 43506 in Williams County. The practice phone is (419) 636-1131.

Source: Dmand AI Affiliation Data

Dr. William W. Harless is affiliated with 5 sites of care and 5 medical groups

Dr. Harless' primary practice is Parkview Bryan Hospital in Bryan, Ohio, part of Parkview Health System. Dr. Harless is also affiliated with Charleston Area Medical Center General Hospital. The medical group on file is Parkview Physicians Group, Midwest Community Health Associates. Dmand AI also links Dr. Harless to 2 more hospitals, 4 medical groups and 1 group practice or clinic, each named with a free account.

See all 10 affiliations for Dr. Harless

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

Dmand AI tracks the EHR system at Dr. William W. Harless' practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Harless practices, 5 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Parkview Bryan HospitalAvailable with a free account
+4 more sites and 4 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dmand AI maps EHR vendors, IT decision makers and buying committees across Parkview Health System and 6.2K+ hospitals, with verified contacts in the same login.

Dr. William W. Harless is one of 175 medical oncologists in Ohio

Medical oncology is Dr. Harless' primary specialty in the NPI Registry, under taxonomy code 207RX0202X. Dmand AI has Dr. Harless' licenses on file in 4 states: West Virginia, Alabama, Connecticut and Maine.

Specialties and state licenses

  • Medical oncology, West VirginiaPrimaryLicense 21423 · taxonomy 207RX0202X
  • Specialist, AlabamaLicense 37144 · taxonomy 174400000X
  • Connecticut licenseLicense 62961
  • Maine licenseLicense MD23392

Medical oncologists near Dr. Harless

Counts of medical oncologists 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 W. Harless billed Medicare for 148 services in 2024

CMS data shows 148 Medicare services from Dr. Harless across 2 procedure codes in 2024, all of them office visits, for 111 Medicare patients. Medicare paid $13,744 for them.

Medicare services, 2024148
Medicare patients111
Paid by Medicare$13,744
Procedure codes2

Dr. Harless' Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 2442024: 14839%

Where Dr. Harless' Medicare services took place, 2024

  • In an office6343%
  • In a facility8557%

Dr. Harless compared with the Ohio median for medical oncologists, 2024

  • Dr. Harless
  • Ohio median
Medicare services
148vs 33856% below
Medicare patients
111vs 13216% below
Part D claims
117vs 19841% below

Medians across 168 medical oncologists in Ohio with Dmand AI profiles that report each measure.

Dr. Harless' most billed Medicare procedure codes, 2024

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

See all procedures by Dr. Harless

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

Dr. William W. Harless treated 111 Medicare patients in 2024, average age 73

CMS counts 111 Medicare patients who saw Dr. Harless in 2024. The largest group is 65 to 74, with 44 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 22% are also on Medicaid. Their average risk score is 1.89, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Harless' median patient age at 71, with 47% women.

Medicare patients, 2024111
Average age73
Average risk score1.89
Also on Medicaid22%

Dr. Harless' Medicare patients by age, 2024

Dr. Harless' Medicare patients by sex, 2024

  • Women5953%
  • Men5247%

Chronic conditions among Dr. Harless' Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis55%
  4. Ischemic heart disease47%
  5. Diabetes42%
  6. Chronic kidney disease40%
  7. Cancer39%
  8. Anxiety38%

Share of Medicare patients with each condition. A patient can have several.

Dr. Harless' patients across all payers

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

Patient panel by age, all payers

Median age 71

Patient panel by sex, all payers

  • Women47%
  • Men53%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. William W. Harless wrote 355 Medicare Part D claims in 2024

In 2024, Dr. Harless wrote 355 Medicare Part D claims for 109 patients. 85% of them were for generic drugs. CMS names the drug for 117 of them, across 7 drugs with 11 or more claims each, at $182,714 in total drug cost. In 2023, CMS named 139 claims across 10 drugs.

Part D claims, 2024355
Drugs named by CMS7
Total drug cost$182,714
Part D patients109

Dr. Harless' Part D claims by kind of drug, 2024

  • Generic302 claims85%
  • Brand-name53 claims15%

Dr. Harless' 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 Dr. Harless' Part D claims, 2024

  • Opioids7%26 of 355 claims
  • Antibiotics13%46 of 355 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: 1392024: 11716%

Drugs named by CMS: 7 in 2024, 10 in 2023.

See all prescribing by Dr. Harless

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

Dr. William W. Harless scored 91 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 91 out of 100 for Dr. Harless for performance year 2024, reported through an alternative payment model (APM).

Dr. Harless' MIPS scores, performance year 2024

  • 91of 100Final score
  • 69.7of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Dr. William W. Harless has 10 publications on record

Dmand AI links 10 papers to Dr. Harless, published from 2017 to 2025. 2020 was the busiest year, with 2. The most frequent topics are Antineoplastic Agents, Apoptosis and Aspirin. Dr. Harless has published most often in Cancers (Basel).

Papers10
Years published2017 to 2025

Dr. Harless' papers by year, 2017 to 2025

Topics Dr. Harless writes about most

  • Antineoplastic Agents
  • Apoptosis
  • Aspirin
  • Breast Neoplasms
  • Cell Proliferation
  • Tumor Microenvironment

Recent publications by Dr. Harless

See all 10 publications and co-authors

See who Dr. Harless researches with

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

How network discovery works

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

Dr. William W. Harless received $570 in industry payments from 2018 to 2025

CMS Open Payments shows 18 general payments to Dr. Harless from 13 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 55% of the total. Janssen Pharmaceuticals, Inc paid the most, $113.

General payments to Dr. Harless by program year, 2018 to 2025

General payments to Dr. Harless by kind, 2018 to 2025

$570in total
  • Food and beverage$31355%
  • Education$25745%

Companies that paid Dr. Harless the most, 2018 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Harless

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

Sources for Dr. William W. Harless'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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
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)
MIPS scores, telehealth, assignment and procedure percentilesClinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
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 W. Harless

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 W. Harless' NPI number?

Dr. William W. Harless' NPI number is 1528100948. It was assigned on February 13, 2007, and it is active in the NPI Registry.

What kind of doctor is Dr. William W. Harless?

Dr. William W. Harless is a medical oncologist in Bryan, Ohio. The primary specialty in the NPI Registry is Medical Oncology Physician (taxonomy code 207RX0202X).

Where does Dr. William W. Harless practice?

Dr. Harless practices at 433 West High Street, Bryan, OH 43506. Dr. Harless' primary practice is Parkview Bryan Hospital in Bryan, Ohio, part of Parkview Health System. Dmand AI also links Dr. Harless to 2 hospitals, 4 medical groups and 1 group practice or clinic.

What is Dr. William W. Harless' office phone number?

The practice phone on file for Dr. Harless is (419) 636-1131.

What is Dr. William W. Harless' medical license number?

Dr. Harless holds West Virginia license 21423, one of the licenses on file in 4 states.

Which states has Dr. William W. Harless been licensed in?

Dmand AI has state licenses on file for Dr. Harless in West Virginia, Alabama, Connecticut and Maine.

Which hospitals is Dr. William W. Harless affiliated with?

Dr. Harless practices at Parkview Bryan Hospital in Bryan, Ohio. Dr. Harless is also affiliated with Charleston Area Medical Center General Hospital. Dmand AI links Dr. Harless to 2 more hospitals.

What medical group is Dr. William W. Harless part of?

Dr. Harless is linked to Parkview Physicians Group, Midwest Community Health Associates. Dmand AI links Dr. Harless to 4 more medical groups.

Does Dr. William W. Harless accept Medicare?

Yes. CMS data shows Dr. Harless billed Medicare for 148 services in 2024.

What is Dr. William W. Harless' MIPS score?

Dr. Harless' MIPS final score for performance year 2024 is 91 out of 100, reported through an alternative payment model (APM).

Show 6 more questionsShow fewer questions

How many Medicare patients does Dr. William W. Harless see?

CMS counts 111 Medicare patients who saw Dr. Harless in 2024, with an average age of 73.

What services does Dr. William W. Harless bill to Medicare?

In 2024, Dr. Harless' most billed Medicare services were office visit, established patient (99215) and office visit, established patient (99214).

What drugs does Dr. William W. Harless prescribe most?

In 2024 Medicare Part D data, Dr. Harless' most prescribed drugs by claims were Prednisone, Hydroxyurea and Sulfamethoxazole-Trimethoprim.

Has Dr. William W. Harless received payments from drug or device companies?

CMS Open Payments shows $570 in general payments to Dr. Harless from 13 companies from 2018 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.

How long has Dr. William W. Harless been practicing?

Dr. Harless graduated from medical school in 1996, 30 years ago.

Does Dr. William W. Harless do research?

Dmand AI links 10 publications to Dr. Harless, published from 2017 to 2025.

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