Leonidas Walthall, M.D.
Hospitalist Physician · Charleston, SC
Leonidas Walthall, M.D. is a hospitalist physician with a practice address in Charleston, South Carolina, and NPI 1467680249, issued on Jun 30, 2009. Check the license (South Carolina 31941, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Leonidas Walthall
- Credential
- M.D.
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License numbers
- 31941 SC
LL31941 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, 2009
- Record last updated
- Oct 22, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20121204000002); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 470 in South Carolina → Look up another NPI →
Also registered at 171 Ashley Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Leonidas Walthall in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license 31941Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average hospitalist physician in 2024
17 Medicare Part D claims, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D.
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.
Bills Medicare through one group practice
- University Medical Associates OF The Medical University OF South CarolCharleston, SC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Leonidas Walthall among 470 hospitalist physician records in South Carolina
Leonidas Walthall, M.D. 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 2009, is newer than 38% of them.
- NPI issued2009 · 38% of these records are older, 58% newer
- In a Medicare fileYes · 93% of these records are
- In the CMS Doctors and Clinicians fileYes · 87% of these records are
- Graduated2009 · median 2011 among the 409 with a school on file
- Record last updated2020 · 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 Charleston → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- David Bundy, MDCharleston, SC 294251528150356
- Patrick Cawley, MDCharleston, SC 294251992813943
- Theresa Cuoco, MDCharleston, SC 294251124046677
- Robert Harrington, MDCharleston, SC 294251518919380
- Michael Hawkins, M.D.Charleston, SC 294251821091224
- Thomas Kyle, M.D.Charleston, SC 294251750355921
- Sarah Mennito, M.D.Charleston, SC 294251811085863
- David Mills, MDCharleston, SC 294251235228008
Common questions
What is Leonidas Walthall, M.D.'s NPI number?
Leonidas Walthall, M.D.'s National Provider Identifier (NPI) is 1467680249, issued on Jun 30, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Leonidas Walthall, M.D. 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 Leonidas Walthall, M.D.'s license?
NPPES lists South Carolina license number 31941, 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 Leonidas Walthall, M.D. prescribe under Medicare Part D?
In 2024, Leonidas Walthall, M.D. had 17 Medicare Part D claims; the average among hospitalist physician prescribers was 521. 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.