William Harrison Gaines, MD
Anesthesiology Physician · Charleston, SC
William Harrison Gaines, MD is an anesthesiology physician with a practice address in Charleston, South Carolina, and NPI 1104503226, issued on Jun 30, 2023. Check the license (South Carolina LL90425, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- William Harrison Gaines
- Credential
- MD
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- LL90425 SC
Self-reported in NPPES; status is on the state search - Practice location
- 171 Ashley Ave, Charleston, SC 29425
- Phone
- (843) 792-1414
- Enumerated
- Jun 30, 2023
- Record last updated
- Jun 30, 2023
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 787 in South Carolina → Look up another NPI →
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A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify William Harrison Gaines in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license LL90425Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average anesthesiology physician in 2024
53 Medicare Part D claims for 23 beneficiaries, against an average of 402 among the 4,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 26% of 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.
William Harrison Gaines among 787 anesthesiology physician records in South Carolina
William Harrison Gaines, MD is one of 787 anesthesiology physician records with a practice address in South Carolina. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 92% of them.
- NPI issued2023 · 92% of these records are older, 6% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 67% of these records are
- Record last updated2023 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
345 anesthesiology physician records list a practice address in Charleston
They are 345 of the 10,840 NPPES records with a practice address in Charleston, and 787 anesthesiology physician records in South Carolina.
All 787 in South Carolina → Every provider in Charleston → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Calvert Alpert, MDCharleston, SC 294251992813935
- Melinda Bailey, MDCharleston, SC 294251295843142
- Jesse Baker, MDCharleston, SC 294251548378581
- Grayce Davis, MDCharleston, SC 294251518075472
- Larry Field, MDCharleston, SC 294251326060385
- Jay Gottesman, MDCharleston, SC 294251881702827
- Orin Guidry, MDCharleston, SC 294251396793253
- Susan Harvey, MDCharleston, SC 294251104934140
Common questions
What is William Harrison Gaines, MD's NPI number?
William Harrison Gaines, MD's National Provider Identifier (NPI) is 1104503226, issued on Jun 30, 2023. An NPI identifies a provider in billing; it is not a license.
Where is William Harrison Gaines, MD located?
The NPPES record lists a practice address at 171 Ashley Ave, Charleston, SC, 29425. Phone: (843) 792-1414. Providers update this record themselves, so call before visiting.
How can I verify William Harrison Gaines, MD's license?
NPPES lists South Carolina license number LL90425, 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 Harrison Gaines, MD prescribe under Medicare Part D?
In 2024, William Harrison Gaines, MD had 53 Medicare Part D claims for 23 beneficiaries; the average among anesthesiology physician prescribers was 402. 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.