William Reece McWilliams, MD
Hospitalist Physician · Columbia, SC
William Reece McWilliams, MD is a hospitalist physician with a practice address in Columbia, South Carolina, and NPI 1346535127, issued on Jun 9, 2011. Check the license (South Carolina 33545, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- William Reece McWilliams
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License numbers
- 33545 SC
LL33545 SC
Self-reported in NPPES; status is on the state search - Practice location
- 14 Richland Medical Park Dr, Columbia, SC 29203
- Phone
- (803) 434-6771
- Enumerated
- Jun 9, 2011
- Record last updated
- Feb 18, 2026
- Fax
- (803) 434-3955
- Medicaid ID
- 335453 SC
- Medicare enrollment
- Enrolled (PECOS I20141013002490); accepts Medicare assignment
- Medical or professional school
- University Of South Carolina School Of Medicine, 2011
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 470 in South Carolina → Look up another NPI →
Also registered at 14 Richland Medical Park Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Adila Abdul-Karim, FNP-CFamily Nurse Practitioner1245616598
- Curtis Bair, M.D.Internal Medicine Physician1306977806
- Jason Barber, M.D.Family Medicine Physician1598893257
- Joseph Barnaba, PHARM.DPharmacist1518561646
- Lawrence BeanAmbulatory Care Pharmacist1265105084
- Chelsea Benedict, MDPediatrics Physician1760233019
Verify William Reece McWilliams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license 33545Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
23% fewer Medicare Part D claims than the average hospitalist physician in 2024
401 Medicare Part D claims for 149 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 23 claims were for opioids.
Most prescribed
- Atorvastatin Calcium35 claims
- Amlodipine Besylate19 claims
- Prednisone14 claims
- Losartan Potassium12 claims
- Pantoprazole Sodium12 claims
- Carvedilol11 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 MIPS final score for 2023 (Medicare payment program): 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).
Bills Medicare through one group practice
- Prisma Health Medical Group-MidlandsColumbia, SC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Reece McWilliams among 470 hospitalist physician records in South Carolina
William Reece McWilliams, MD is one of 470 hospitalist physician records with a practice address in South Carolina. 93% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 44% of them.
- NPI issued2011 · 44% of these records are older, 50% newer
- In a Medicare fileYes · 93% of these records are
- In the CMS Doctors and Clinicians fileYes · 87% of these records are
- Graduated2011 · median 2011 among the 409 with a school on file
- Record last updated2026 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in South Carolina
There are 470 hospitalist physician records in South Carolina.
All 470 in South Carolina → Every provider in Columbia → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Christopher Ballou, M.D.Columbia, SC 292031659400943
- Belgin Camcioglu, M.D.Columbia, SC 292031871786574
- Peter Carnohan, M.D.Columbia, SC 292031487659660
- Anton Clemmons, M.D.Columbia, SC 292031225163454
- James Fields, MDColumbia, SC 292031023087277
- Brian Hurley, MDColumbia, SC 292031346201365
- Jimmy Joye, MDColumbia, SC 292031871552695
- William Lindsey, MDColumbia, SC 292031669413357
Common questions
What is William Reece McWilliams, MD's NPI number?
William Reece McWilliams, MD's National Provider Identifier (NPI) is 1346535127, issued on Jun 9, 2011. An NPI identifies a provider in billing; it is not a license.
Where is William Reece McWilliams, MD located?
The NPPES record lists a practice address at 14 Richland Medical Park Dr, Columbia, SC, 29203. Phone: (803) 434-6771. Providers update this record themselves, so call before visiting.
How can I verify William Reece McWilliams, MD's license?
NPPES lists South Carolina license number 33545, as entered by the provider. 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 Reece McWilliams, MD prescribe under Medicare Part D?
In 2024, William Reece McWilliams, MD had 401 Medicare Part D claims for 149 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.
What is William Reece McWilliams, MD's MIPS final 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), 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.