William Merritt, MD
Gynecologic Oncology Physician · Columbia, SC
William Merritt, MD is a gynecologic oncology physician with a practice address in Columbia, South Carolina, and NPI 1609070143, issued on Jun 11, 2007. Check the license on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- William Merritt
- Credential
- MD
- Primary taxonomy
- Gynecologic Oncology Physician 207VX0201X
- Practice location
- 166 Stoneridge Dr, Columbia, SC 29210
- Phone
- (803) 461-3000
- Enumerated
- Jun 11, 2007
- Entity
- Type 1 · individual
Also registered at 166 Stoneridge Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mary Ackerman, MDHematology & Oncology Physician1912988536
- William Babcock, MDHematology & Oncology Physician1538140173
- Phillip Baldwin, MDHematology & Oncology Physician1215918545
- Amy Ballou, ACNPAcute Care Nurse Practitioner1467719732
- Kevin Blas, M.D.Radiation Oncology Physician1568725810
- Charles Butler, M.D.Internal Medicine Physician1881725364
Verify William Merritt in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical ExaminersCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
3.5 times the Medicare Part D claims of the average gynecologic oncology physician in 2024
688 Medicare Part D claims for 181 beneficiaries, against an average of 198 among the 1,016 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims. 127 claims were for opioids.
Most prescribed
- Ondansetron Odt77 claims
- Letrozole52 claims
- Tramadol Hcl49 claims
- Eliquis47 claims
- Dexamethasone43 claims
- Rubraca36 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 Medicare quality score for 2023: 99.3 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,648.99
77 payments, mostly food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 833 providers of this specialty with any payment received $6,785.12 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.
One hospital or facility affiliation
- South Carolina Oncology Assoc PAColumbia, SC
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Gynecologic Oncology Physician providers in South Carolina
There are 15 gynecologic oncology physician records in South Carolina.
Other gynecologic oncology physician records in South Carolina
- Courtney BaileyCharleston, SC1992116834
- Jeffrey Elder, MDGreenville, SC1457569923
- Michelle Ertel, M.D.Greenville, SC1467986240
- David Griffin, M.D.Anderson, SC1508823618
- James Hunter, M.D.Spartanburg, SC1437116548
- Thomas Jennings, MDCharleston, SC1316942857
- Nonna Kolomeyevskaya, MDAnderson, SC1962708644
- Mark Miller, DOWest Columbia, SC1265572093
- Larry Puls, M.D.Greenville, SC1225096340
- Carlton Schwab, M.D.Spartanburg, SC1700014982
Common questions
What is William Merritt, MD's NPI number?
William Merritt, MD's National Provider Identifier (NPI) is 1609070143, issued on Jun 11, 2007. An NPI identifies a provider in billing; it is not a license.
Where is William Merritt, MD located?
The NPPES record lists a practice address at 166 Stoneridge Dr, Columbia, SC, 29210. Phone: (803) 461-3000. Providers update this record themselves, so call before visiting.
How can I verify William Merritt, MD's license?
Search the South Carolina Board of Medical Examiners at https://verify.llronline.com/LicLookup/Med/Med.aspx?div=22. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William Merritt, MD prescribe under Medicare Part D?
In 2024, William Merritt, MD had 688 Medicare Part D claims for 181 beneficiaries; the average among gynecologic oncology physician prescribers was 198. Part D covers Medicare prescriptions only.
What is William Merritt, MD's Medicare quality score?
The 2023 MIPS final score is 99.3 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.