William Francis Maguire, M.D.
Internal Medicine Physician · Charleston, SC
William Francis Maguire, M.D. is an internal medicine physician with a practice address in Charleston, South Carolina, and NPI 1528061397, issued on May 24, 2005. Check the license (South Carolina 14188, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- William Francis Maguire
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 14188 SC
Self-reported in NPPES; status is on the state search - Practice location
- 615 Wesley Dr, Charleston, SC 29407
- Phone
- (843) 266-4400
- Enumerated
- May 24, 2005
- Record last updated
- Feb 12, 2025
- Fax
- (843) 577-0455
- Medicaid ID
- 141885 SC
- Medicare enrollment
- Enrolled (PECOS I20050902000408); accepts Medicare assignment
- Medical or professional school
- Medical University Of South Carolina College Of Medicine, 1985
- Entity
- Type 1 · individual
Also registered at 615 Wesley Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lee Bastian, APRNPrimary Care Nurse Practitioner1497139117
- James Fayssoux, M.D.Internal Medicine Physician1407808926
- Christopher McLain, MDInternal Medicine Physician1437167202
- Holly Wise, PTPhysical Therapist1619041696
Verify William Francis Maguire in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license 14188Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.4 times the Medicare Part D claims of the average internal medicine physician in 2024
14,045 Medicare Part D claims for 918 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 913 claims were for opioids.
Most prescribed
- Atorvastatin Calcium694 claims
- Amlodipine Besylate631 claims
- Alprazolam478 claims
- Levothyroxine Sodium419 claims
- Zolpidem Tartrate368 claims
- Meloxicam312 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.
Industry payments in 2024: $953.57
49 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 50,334 providers of this specialty with any payment received $1,303.06 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
- Roper Saint Francis Physicians NetworkCharleston, SC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
427 internal medicine physician records list a practice address in Charleston
They are 427 of the 10,840 NPPES records with a practice address in Charleston, and 1,881 internal medicine physician records in South Carolina.
All 427 in Charleston → All 1,881 in South Carolina → Every provider in Charleston →
Other internal medicine physician records in South Carolina
- Sheharyar Abbasi, DOMyrtle Beach, SC1619617222
- John Abbott, M.D.Sumter, SC1093830762
- Amjad Abdulrahman, MDIrmo, SC1194718841
- Alvin Abinsay, M.D.Marion, SC1689608002
- Izabela Abissi, DOCharleston, SC1376387803
- Tinu Abraham, MDGreenwood, SC1194354399
- Natallia Abramovich, MDSeneca, SC1568647949
- Ibrahim Abu Dayah, MDMyrtle Beach, SC1306368667
- Lauren Abusal, MD, MSCRMyrtle Beach, SC1093552911
- John Adams, MDElgin, SC1750395570
Common questions
What is William Francis Maguire, M.D.'s NPI number?
William Francis Maguire, M.D.'s National Provider Identifier (NPI) is 1528061397, issued on May 24, 2005. An NPI identifies a provider in billing; it is not a license.
Where is William Francis Maguire, M.D. located?
The NPPES record lists a practice address at 615 Wesley Dr, Charleston, SC, 29407. Phone: (843) 266-4400. Providers update this record themselves, so call before visiting.
How can I verify William Francis Maguire, M.D.'s license?
NPPES lists South Carolina license number 14188, 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 Francis Maguire, M.D. prescribe under Medicare Part D?
In 2024, William Francis Maguire, M.D. had 14,045 Medicare Part D claims for 918 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
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.