NPPES file of Aug 9, 2026

L. Mark Kimsey, M.D.

Psychiatry Physician · Caldwell, ID

L. Mark Kimsey, M.D. is a psychiatry physician with a practice address in Caldwell, Idaho, and NPI 1528022084, issued on Apr 13, 2006. Check the license (Idaho M5654, as entered in NPPES) on the Idaho Board of Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1528022084
Name
L. Mark Kimsey
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
M5654 ID
Self-reported in NPPES; status is on the state search
Practice location
305 E Logan St, Caldwell, ID 83605
Phone
(208) 459-2840
Enumerated
Apr 13, 2006
Record last updated
Feb 6, 2024
Fax
(208) 459-3012
Medicaid ID
000390401 CA
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify L. Mark Kimsey in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIdaho Board of Medicine
    Search for license M5654
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Idaho license search

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2.4 times the Medicare Part D claims of the average psychiatry physician in 2024

2,424 Medicare Part D claims for 116 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims.

  1. L. Mark Kimsey2,424
  2. Specialty average1,000

Most prescribed

  1. Lamotrigine201 claims
  2. Escitalopram Oxalate168 claims
  3. Trazodone Hcl155 claims
  4. Clonazepam143 claims
  5. Alprazolam131 claims
  6. Quetiapine Fumarate118 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.

L. Mark Kimsey among 164 psychiatry physician records in Idaho

L. Mark Kimsey, M.D. is one of 164 psychiatry physician records with a practice address in Idaho. 62% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 62% newer
  • In a Medicare fileYes · 62% of these records are
  • In the CMS Doctors and Clinicians fileNo · 46% of these records are
  • Record last updated2024 · 40% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Idaho practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychiatry Physician providers in Idaho

There are 164 psychiatry physician records in Idaho.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Daniel Anderson, PMHNP-BCCaldwell, ID 836051790518751
  2. Lawrence Banta, M.D.Caldwell, ID 836051568440295
  3. Alfred Brem, DOCaldwell, ID 836051427187848
  4. Kristen FestaCaldwell, ID 836051356293641
  5. Colt KenningtonCaldwell, ID 836051386106268
  6. Sandra Lare, D.O.Caldwell, ID 836051073699559
  7. Richard Montgomery, M.D.Caldwell, ID 836051275567638
  8. Christine Birch, PA-CEagle, ID 836161871912634

Common questions

What is L. Mark Kimsey, M.D.'s NPI number?

L. Mark Kimsey, M.D.'s National Provider Identifier (NPI) is 1528022084, issued on Apr 13, 2006. An NPI identifies a provider in billing; it is not a license.

Where is L. Mark Kimsey, M.D. located?

The NPPES record lists a practice address at 305 E Logan St, Caldwell, ID, 83605. Phone: (208) 459-2840. Providers update this record themselves, so call before visiting.

How can I verify L. Mark Kimsey, M.D.'s license?

NPPES lists Idaho license number M5654, as entered by the provider. Search the Idaho Board of Medicine at https://dopl.idaho.gov/bom/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does L. Mark Kimsey, M.D. prescribe under Medicare Part D?

In 2024, L. Mark Kimsey, M.D. had 2,424 Medicare Part D claims for 116 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.