Thomas L. Keister, MD
Pain Medicine (Psychiatry & Neurology) Physician · Mandeville, LA
Thomas L. Keister, MD is a pain medicine (psychiatry & neurology) physician with a practice address in Mandeville, Louisiana, and NPI 1134177462, issued on May 5, 2006. Check the license (Louisiana MD.12923R, as entered in NPPES) on the Louisiana State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Thomas L. Keister
- Credential
- MD
- Primary taxonomy
- Pain Medicine (Psychiatry & Neurology) Physician 2084P2900X
- License number
- MD.12923R LA
Self-reported in NPPES; status is on the state search - Practice location
- 2810 E Causeway Approach, Mandeville, LA 70448
- Phone
- (985) 875-2340
- Enumerated
- May 5, 2006
- Record last updated
- Jul 13, 2026
- Medicaid ID
- 1552321 LA
- Entity
- Type 1 · individual
1 nearest pain medicine (psychiatry & neurology) physician record → All 2 in Louisiana → Look up another NPI →
Also registered at 2810 E Causeway Approach
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Russell Anderson, PHDCounseling Psychologist1982228235
- Jessica Bailey, LCSWSocial Worker1174098537
- Kristin BarberSocial Worker1437087244
- Tyler Brent, LCSWClinical Social Worker1700489978
- Spring Cloud Neill, MDPediatrics Physician1609834209
- Erin Conlin, M.D.Internal Medicine Physician1558788752
Verify Thomas L. Keister in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersLouisiana State Board of Medical Examiners
Search for license MD.12923RCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
71% fewer Medicare Part D claims than the average pain medicine (psychiatry & neurology) physician in 2024
402 Medicare Part D claims for 114 beneficiaries, against an average of 1,374 among the 130 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims.
Most prescribed
- Mirtazapine46 claims
- Quetiapine Fumarate24 claims
- Sertraline Hcl23 claims
- Memantine Hcl22 claims
- Bupropion Xl19 claims
- Venlafaxine Hcl Er19 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.
Pain Medicine (Psychiatry & Neurology) Physician providers in Louisiana
There are 2 pain medicine (psychiatry & neurology) physician records in Louisiana.
All 2 in Louisiana → Every provider in Mandeville → Pain Medicine (Psychiatry & Neurology) Physician nationwide →
The 1 pain medicine (psychiatry & neurology) physician record with the nearest ZIP codes
- Sean Moore, MDNew Orleans, LA 701181841515061
Common questions
What is Thomas L. Keister, MD's NPI number?
Thomas L. Keister, MD's National Provider Identifier (NPI) is 1134177462, issued on May 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Thomas L. Keister, MD located?
The NPPES record lists a practice address at 2810 E Causeway Approach, Mandeville, LA, 70448. Phone: (985) 875-2340. Providers update this record themselves, so call before visiting.
How can I verify Thomas L. Keister, MD's license?
NPPES lists Louisiana license number MD.12923R, 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 Thomas L. Keister, MD prescribe under Medicare Part D?
In 2024, Thomas L. Keister, MD had 402 Medicare Part D claims for 114 beneficiaries; the average among pain medicine (psychiatry & neurology) physician prescribers was 1,374. 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.