Llewellyn Simon, M.D.
Internal Medicine Physician · Lake Providence, LA
Llewellyn Simon, M.D. is an internal medicine physician with a practice address in Lake Providence, Louisiana, and NPI 1063494128, issued on Nov 15, 2005. Check the license (Louisiana 11828R, as entered in NPPES) on the Louisiana State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Llewellyn Simon
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 11828R LA
Self-reported in NPPES; status is on the state search - Practice location
- 320 N Hood St, Lake Providence, LA 71254
- Phone
- (318) 559-2404
- Enumerated
- Nov 15, 2005
- Record last updated
- Oct 16, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (318) 559-2430
- Medicaid ID
- 1680893 LA
- Medicare enrollment
- Enrolled (PECOS I20040216000529); may accept Medicare assignment
- Entity
- Type 1 · individual
Also registered at 320 N Hood St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Carla Costello, FNPFamily Nurse Practitioner1356657746
- Stacey Hackler, APRN, FNP-CFamily Nurse Practitioner1477000529
Verify Llewellyn Simon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersLouisiana State Board of Medical Examiners
Search for license 11828RCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5.8 times the Medicare Part D claims of the average internal medicine physician in 2024
18,489 Medicare Part D claims for 453 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims. 1,440 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen1,206 claims
- Potassium Chloride651 claims
- Amlodipine Besylate567 claims
- Atorvastatin Calcium527 claims
- Farxiga507 claims
- Levothyroxine Sodium488 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: $940.85
35 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. 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.
One hospital affiliation
- East Carroll Parish HospitalLake Providence, LA · Acute Care Hospitals
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov).
2 internal medicine physician records list a practice address in Lake Providence
They are 2 of the 75 NPPES records with a practice address in Lake Providence, and 1,749 internal medicine physician records in Louisiana.
All 2 in Lake Providence → All 1,749 in Louisiana → Every provider in Lake Providence →
Other internal medicine physician records in Louisiana
- Alfred Abaunza, M.D.New Orleans, LA1093994287
- David Abdehou, MDShreveport, LA1568471993
- Youssef Abdelmalek, M.DAlexandria, LA1639553233
- Mohammed Abdelsalam, MDNew Orleans, LA1922740190
- Mary Abell, M.D.New Orleans, LA1083631089
- Shema Abraham, M.DLafayette, LA1285053405
- Candice Abuso, MDHarvey, LA1780670489
- Aaron Ackley, M.D.Lafayette, LA1699209015
- Marc Acosta, M.D.Metairie, LA1891868840
- Scott Acosta, MDMarrero, LA1023018199
Common questions
What is Llewellyn Simon, M.D.'s NPI number?
Llewellyn Simon, M.D.'s National Provider Identifier (NPI) is 1063494128, issued on Nov 15, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Llewellyn Simon, M.D. located?
The NPPES record lists a practice address at 320 N Hood St, Lake Providence, LA, 71254. Phone: (318) 559-2404. Providers update this record themselves, so call before visiting.
How can I verify Llewellyn Simon, M.D.'s license?
NPPES lists Louisiana license number 11828R, as entered by the provider. Search the Louisiana State Board of Medical Examiners at https://www.lsbme.la.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Llewellyn Simon, M.D. prescribe under Medicare Part D?
In 2024, Llewellyn Simon, M.D. had 18,489 Medicare Part D claims for 453 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.