William Mark McCollough, MD
Radiation Oncology Physician · Asheville, NC
William Mark McCollough, MD is a radiation oncology physician with a practice address in Asheville, North Carolina, and NPI 1881674992, issued on Jan 17, 2006. Check the license (North Carolina 200300500, as entered in NPPES) on the North Carolina Medical Board; the Medicare figures below come from public CMS files.
- Name
- William Mark McCollough
- Credential
- MD
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- 200300500 NC
Self-reported in NPPES; status is on the state search - Practice location
- 21 Hospital Dr, Asheville, NC 28801
- Phone
- (828) 213-0100
- Enumerated
- Jan 17, 2006
- Record last updated
- Jul 18, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicaid ID
- 89134MT NC
- Medicare enrollment
- Enrolled (PECOS I20101111000640); accepts Medicare assignment
- Medical or professional school
- University Of Florida College Of Medicine, 1985
- Entity
- Type 1 · individual
Also registered at 21 Hospital Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kylie Franklin, FNPNurse Practitioner1215179981
- Ronald Friedman, M.D.Internal Medicine Physician1154311082
- William Jerkins, CPNP-ACNurse Practitioner1184889610
- Thomas Large, M.D.Orthopaedic Surgery Physician1407825318
- Steven Limentani, MDInternal Medicine Physician1861409369
- Chelsea Osterman, MDMedical Oncology Physician1427443928
Verify William Mark McCollough in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNorth Carolina Medical Board
Search for license 200300500Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
40% more Medicare Part D claims than the average radiation oncology physician in 2024
188 Medicare Part D claims for 77 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 16 claims were for opioids.
Most prescribed
- Lidocaine Hcl Viscous27 claims
- Gabapentin19 claims
- Dexamethasone17 claims
- Tamsulosin Hcl16 claims
- Triamcinolone Acetonide14 claims
- Pentoxifylline13 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $961.93
1 payment: food and beverage; the largest payer was Servier Pharmaceuticals LLC. The 3,275 providers of this specialty with any payment received $1,897.85 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Mission Health Community Multispecialty Providers LLCAsheville, NC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Radiation Oncology Physician providers in North Carolina
There are 230 radiation oncology physician records in North Carolina.
Other radiation oncology physician records in North Carolina
- Mustafa Abugideiri, MDWilmington, NC1730576455
- Jeffrey Acker, M.D.Pinehurst, NC1013916543
- Quentin Adams, M.D.Winston Salem, NC1679923270
- Mark Alden, MDGreenville, NC1508827247
- Karen Allen, NPDurham, NC1861724627
- Laura Allen, M.D,Lexington, NC1164477394
- Ron Allison, MDGreenville, NC1497750756
- Roger Anderson, MDRaleigh, NC1528096591
- Mitchell Anscher, M.D.Chapel Hill, NC1366472102
- Hyder Arastu, M.D.Greenville, NC1659377372
Common questions
What is William Mark McCollough, MD's NPI number?
William Mark McCollough, MD's National Provider Identifier (NPI) is 1881674992, issued on Jan 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Mark McCollough, MD located?
The NPPES record lists a practice address at 21 Hospital Dr, Asheville, NC, 28801. Phone: (828) 213-0100. Providers update this record themselves, so call before visiting.
How can I verify William Mark McCollough, MD's license?
NPPES lists North Carolina license number 200300500, as entered by the provider. Search the North Carolina Medical Board at https://portal.ncmedboard.org/verification/search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William Mark McCollough, MD prescribe under Medicare Part D?
In 2024, William Mark McCollough, MD had 188 Medicare Part D claims for 77 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.
What is William Mark McCollough, MD's MIPS final score?
The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.