Dr. William Mark McCollough, MD

  • Asheville, NC
  • Radiation oncologist
NPI1881674992PAC ID7719030444
Medicare services, 2024
1,302
Medicare patients, 2024
196
Part D claims, 2024
188
Clinical trials
1
MIPS score, 2024
90
Practice address
509 Biltmore Ave, Asheville, NC 28801
Practice phone
Call (828) 213-1111
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Mission Hospital

Hospital · Asheville, North Carolina

See all 6 affiliations

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Dr. William Mark McCollough is a radiation oncologist in Asheville, North Carolina

Dr. McCollough practices at Mission Hospital in Asheville, North Carolina, part of HCA Healthcare.

Dr. McCollough's NPI, 1881674992, was assigned on January 17, 2006. Dr. McCollough graduated from University of Florida College of Medicine in 1985. Dr. McCollough holds North Carolina license 200300500.

NPI and contact details
Medicare PAC ID
7719030444
NPI enumeration date
January 17, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(828) 213-1111
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
67
Medical school graduation
1985

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. William Mark McCollough practices at Mission Hospital in Asheville, North Carolina

Dr. McCollough's primary practice is Mission Hospital, at 509 Biltmore Ave, Asheville, NC 28801 in Buncombe County. The practice phone is (828) 213-1111.

  • Mission Hospital
    509 Biltmore Ave, Asheville, NC 28801 · Buncombe CountyPhone(828) 213-1111

Source: Dmand AI Affiliation Data

Dr. William Mark McCollough is affiliated with 5 sites of care and 1 medical group

Dr. McCollough's primary practice is Mission Hospital in Asheville, North Carolina, part of HCA Healthcare. Dr. McCollough is also affiliated with CarePartners Rehabilitation Hospital. The medical group on file is Mission Health Community Multispecialty Providers. Dmand AI also links Dr. McCollough to 2 more hospitals and 1 group practice or clinic, each named with a free account.

See all 6 affiliations for Dr. McCollough

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

Dmand AI tracks the EHR system at Dr. William Mark McCollough's practice

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

EHR by site
SiteEHR vendor and product
Mission HospitalAvailable with a free account
+4 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dr. William Mark McCollough is one of 206 radiation oncologists in North Carolina

Radiation oncology is Dr. McCollough's primary specialty in the NPI Registry, under taxonomy code 2085R0001X. Dr. McCollough is licensed in North Carolina.

Specialties and state licenses

  • Radiation oncology, North CarolinaPrimaryLicense 200300500 · taxonomy 2085R0001X

Radiation oncologists near Dr. McCollough

Counts of radiation 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 Mark McCollough billed Medicare for 1,302 services in 2024

CMS data shows 1,302 Medicare services from Dr. McCollough across 14 procedure codes in 2024, for 196 Medicare patients. Medicare paid $88,112 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 20241,302
Medicare patients196
Paid by Medicare$88,112
Procedure codes14

Dr. McCollough's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Imaging
2023: 1,2462024: 1,2014%
Office and hospital visits
2023: 1082024: 1016%

Dr. McCollough compared with the North Carolina median for radiation oncologists, 2024

  • Dr. McCollough
  • North Carolina median
Medicare services
1,302vs 1,292Close to median
Medicare patients
196vs 1828% above
Part D claims
117vs 422.8 times

Medians across 199 radiation oncologists in North Carolina with Dmand AI profiles that report each measure.

Dr. McCollough's 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. McCollough

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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. McCollough and other radiation oncologists in North Carolina.

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

Dr. William Mark McCollough treated 196 Medicare patients in 2024, average age 74

CMS counts 196 Medicare patients who saw Dr. McCollough in 2024. The largest group is 65 to 74, with 96 patients. 72% of them have cancer, and 70% have high blood pressure. 13% are also on Medicaid. Their average risk score is 1.57, 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. McCollough's median patient age at 73, with 42% women.

Medicare patients, 2024196
Average age74
Average risk score1.57
Also on Medicaid13%

Dr. McCollough's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. McCollough's Medicare patients by sex, 2024

  • Women10353%
  • Men9347%

Chronic conditions among Dr. McCollough's Medicare patients, 2024

  1. Cancer72%
  2. High blood pressure70%
  3. High cholesterol66%
  4. Arthritis42%
  5. Anxiety38%
  6. Mood disorders32%
  7. COPD30%
  8. Tobacco use29%

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

Dr. McCollough'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

  • Women42%
  • Men58%

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

Dr. William Mark McCollough wrote 188 Medicare Part D claims in 2024

In 2024, Dr. McCollough wrote 188 Medicare Part D claims for 77 patients. 91% of them were for generic drugs. CMS names the drug for 117 of them, across 7 drugs with 11 or more claims each, at $1,466 in total drug cost. In 2023, CMS named 32 claims across 2 drugs.

Part D claims, 2024188
Drugs named by CMS7
Total drug cost$1,466
Part D patients77

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

  • Generic171 claims91%
  • Brand-name17 claims9%

Dr. McCollough'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 Dr. McCollough's Part D claims, 2024

  • Opioids9%16 of 188 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: 322024: 117266%

Drugs named by CMS: 7 in 2024, 2 in 2023.

See all prescribing by Dr. McCollough

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 Mark McCollough scored 90 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 90 out of 100 for Dr. McCollough for performance year 2024, reported through an alternative payment model (APM). Dr. McCollough accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Dr. McCollough's MIPS scores, performance year 2024

  • 90of 100Final score
  • 77.7of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities

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

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Dr. William Mark McCollough has worked on 1 clinical trial

Dmand AI links Dr. McCollough to 1 clinical trial. 1 is still active or recruiting. Conditions studied include Breast Neoplasms and Breast Diseases.

Conditions in Dr. McCollough's trials

  • Breast Neoplasms
  • Breast Diseases

Investigators on the most trials with Dr. McCollough

Recent clinical trials with Dr. McCollough

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

Dr. William Mark McCollough received $1,032 in industry payments from 2017 to 2025

CMS Open Payments shows 5 general payments to Dr. McCollough from 5 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. Servier Pharmaceuticals LLC paid the most, $962.

General payments to Dr. McCollough by program year, 2017 to 2025

Companies that paid Dr. McCollough the most, 2017 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. McCollough

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

Dr. William Mark McCollough graduated from University of Florida College of Medicine

Dr. McCollough graduated from University of Florida College of Medicine in 1985.

  1. Medical schoolUniversity of Florida College of Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. William Mark McCollough'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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Clinical trials and co-investigatorsClinicalTrials.gov (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
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 Mark McCollough

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 Mark McCollough's NPI number?

Dr. William Mark McCollough's NPI number is 1881674992. It was assigned on January 17, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. William Mark McCollough?

Dr. William Mark McCollough is a radiation oncologist in Asheville, North Carolina. The primary specialty in the NPI Registry is Radiation Oncology Physician (taxonomy code 2085R0001X).

Where does Dr. William Mark McCollough practice?

Dr. McCollough practices at 509 Biltmore Ave, Asheville, NC 28801. Dr. McCollough's primary practice is Mission Hospital in Asheville, North Carolina, part of HCA Healthcare. Dmand AI also links Dr. McCollough to 2 hospitals and 1 group practice or clinic.

What is Dr. William Mark McCollough's office phone number?

The practice phone on file for Dr. McCollough is (828) 213-1111.

What is Dr. William Mark McCollough's medical license number?

Dr. McCollough holds North Carolina license 200300500.

Which hospitals is Dr. William Mark McCollough affiliated with?

Dr. McCollough practices at Mission Hospital in Asheville, North Carolina. Dr. McCollough is also affiliated with CarePartners Rehabilitation Hospital. Dmand AI links Dr. McCollough to 2 more hospitals.

What medical group is Dr. William Mark McCollough part of?

Dr. McCollough is linked to Mission Health Community Multispecialty Providers.

Does Dr. William Mark McCollough accept Medicare?

Yes. CMS data shows Dr. McCollough billed Medicare for 1,302 services in 2024, and Dr. McCollough accepts Medicare assignment.

What is Dr. William Mark McCollough's MIPS score?

Dr. McCollough's MIPS final score for performance year 2024 is 90 out of 100, reported through an alternative payment model (APM).

How many Medicare patients does Dr. William Mark McCollough see?

CMS counts 196 Medicare patients who saw Dr. McCollough in 2024, with an average age of 74.

Show 6 more questionsShow fewer questions

What services does Dr. William Mark McCollough bill to Medicare?

In 2024, Dr. McCollough's most billed Medicare services were radiation oncology (77014), radiation oncology (77300) and radiation oncology (77334).

Where did Dr. William Mark McCollough go to medical school?

Dr. McCollough graduated from University of Florida College of Medicine in 1985.

What drugs does Dr. William Mark McCollough prescribe most?

In 2024 Medicare Part D data, Dr. McCollough's most prescribed drugs by claims were Lidocaine HCl Viscous, Gabapentin and Dexamethasone.

Has Dr. William Mark McCollough received payments from drug or device companies?

CMS Open Payments shows $1,032 in general payments to Dr. McCollough from 5 companies from 2017 to 2025. The largest total came from Servier Pharmaceuticals LLC.

How long has Dr. William Mark McCollough been practicing?

Dr. McCollough graduated from medical school in 1985, 41 years ago.

Does Dr. William Mark McCollough do research?

Dr. McCollough has worked on 1 clinical trial.

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