NPPES file of Aug 9, 2026

Thomas Darrell Cain, M.D.

Geriatric Medicine (Internal Medicine) Physician · Little Rock, AR

Thomas Darrell Cain, M.D. is a geriatric medicine (internal medicine) physician with a practice address in Little Rock, Arkansas, and NPI 1306816087, issued on Jan 25, 2006. Check the license (Arkansas C4920, as entered in NPPES) on the Arkansas State Medical Board; 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
1306816087
Name
Thomas Darrell Cain
Credential
M.D.
Primary taxonomy
Geriatric Medicine (Internal Medicine) Physician 207RG0300X
License number
C4920 AR
Self-reported in NPPES; status is on the state search
Practice location
10001 Lile Drive, Little Rock, AR 72205
Phone
(501) 227-8000
Enumerated
Jan 25, 2006
Record last updated
Apr 17, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(501) 320-1682
Medicaid ID
103645001 AR
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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8 nearest geriatric medicine (internal medicine) physician records → All 40 in Arkansas → Look up another NPI →

Also registered at 10001 Lile Drive

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Jennifer McCallum, M.D.Rheumatology Physician1760695944
  2. Raghu Reddy, MDPulmonary Disease Physician1326219213

Verify Thomas Darrell Cain in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArkansas State Medical Board
    Search for license C4920    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 Arkansas license search

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48% fewer Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024

2,209 Medicare Part D claims for 286 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.

  1. Thomas Cain2,209
  2. Specialty average4,246

Most prescribed

  1. Atorvastatin Calcium115 claims
  2. Potassium Chloride96 claims
  3. Levothyroxine Sodium90 claims
  4. Amlodipine Besylate88 claims
  5. Metoprolol Succinate79 claims
  6. Omeprazole73 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: $31.67

2 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 1,004 providers of this specialty with any payment received $1,720.82 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Thomas Cain$31.67
  2. Specialty average$1,720.82

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Thomas Darrell Cain among 40 geriatric medicine (internal medicine) physician records in Arkansas

Thomas Darrell Cain, M.D. is one of 40 geriatric medicine (internal medicine) physician records with a practice address in Arkansas. 75% 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 10% of them.

  • NPI issued2006 · 10% of these records are older, 23% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileNo · 50% of these records are
  • Record last updated2019 · 75% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0300X and a Arkansas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Geriatric Medicine (Internal Medicine) Physician providers in Arkansas

There are 40 geriatric medicine (internal medicine) physician records in Arkansas.

All 40 in Arkansas → Every provider in Little Rock → Geriatric Medicine (Internal Medicine) Physician nationwide →

The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes

  1. Anil Anandam, M.DLittle Rock, AR 722051801101431
  2. Gohar Azhar, M.D.Little Rock, AR 722051508804899
  3. Kimberly Garner, MDLittle Rock, AR 722051487754347
  4. David Liu, M.D.Little Rock, AR 722051720073349
  5. Burcu Ozdemir, MDLittle Rock, AR 722051780774257
  6. Kalpana Padala, MDLittle Rock, AR 722051154443372
  7. Paula Podrazik, MDLittle Rock, AR 722051811059363
  8. Cathey Powers, M.D.Little Rock, AR 722051053327981

Common questions

What is Thomas Darrell Cain, M.D.'s NPI number?

Thomas Darrell Cain, M.D.'s National Provider Identifier (NPI) is 1306816087, issued on Jan 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Thomas Darrell Cain, M.D. located?

The NPPES record lists a practice address at 10001 Lile Drive, Little Rock, AR, 72205. Phone: (501) 227-8000. Providers update this record themselves, so call before visiting.

How can I verify Thomas Darrell Cain, M.D.'s license?

NPPES lists Arkansas license number C4920, as entered by the provider. Search the Arkansas State Medical Board at https://armedicalboard.adh.arkansas.gov/public/verify/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Thomas Darrell Cain, M.D. prescribe under Medicare Part D?

In 2024, Thomas Darrell Cain, M.D. had 2,209 Medicare Part D claims for 286 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.