NPPES file of Aug 9, 2026

Timothy R. Diles, M.D.

Anesthesiology Physician · Little Rock, AR

Timothy R. Diles, M.D. is an anesthesiology physician with a practice address in Little Rock, Arkansas, and NPI 1467448332, issued on Sep 26, 2005. Check the license (Arkansas E-1168, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1467448332
Name
Timothy R. Diles
Credential
M.D.
Primary taxonomy
Anesthesiology Physician 207L00000X
License number
E-1168 AR
Self-reported in NPPES; status is on the state search
Practice location
500 S University Ave, Little Rock, AR 72205
Phone
(501) 664-4532
Enumerated
Sep 26, 2005
Record last updated
Dec 4, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(501) 663-4335
Medicare enrollment
Enrolled (PECOS I20070119000461); accepts Medicare assignment
Medical or professional school
University Of Arkansas College Of Medicine, 1994
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 500 S University Ave

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

  1. Dana Abraham, M.D.Surgery Physician1164468567
  2. Zada Adametz, CRNACertified Registered Nurse Anesthetist1346421690
  3. Cheryl Ahart, M.D.Pediatrics Physician1407891724
  4. Shawn Alberti, CRNACertified Registered Nurse Anesthetist1659349892
  5. Albert Alexander, MDDiagnostic Radiology Physician1609863943
  6. Brian Alexander, M.D.Anesthesiology Physician1922094846

Verify Timothy R. Diles in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArkansas State Medical Board
    Search for license E-1168
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Arkansas Surgical Hospital LLCNorth Little Rock, AR

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Timothy R. Diles among 390 anesthesiology physician records in Arkansas

Timothy R. Diles, M.D. is one of 390 anesthesiology physician records with a practice address in Arkansas. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 85% newer
  • In a Medicare fileYes · 70% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated1994 · median 2004 among the 250 with a school on file
  • Record last updated2007 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a Arkansas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

226 anesthesiology physician records list a practice address in Little Rock

They are 226 of the 13,172 NPPES records with a practice address in Little Rock, and 390 anesthesiology physician records in Arkansas.

The 8 anesthesiology physician records with the nearest ZIP codes

  1. Brian Alexander, M.D.Little Rock, AR 722051922094846
  2. Carol Crittendon, M.D.Little Rock, AR 722051477549251
  3. Robert Dalby, M.D.Little Rock, AR 722051043206907
  4. Don Frost, M.D.Little Rock, AR 722051578559464
  5. Russell Harris, M.D.Little Rock, AR 722051780670638
  6. William Henry, M.D.Little Rock, AR 722051801882675
  7. Rodney McCarver, MDLittle Rock, AR 722051831183193
  8. Randall Middaugh, M.D.Little Rock, AR 722051902892730

Common questions

What is Timothy R. Diles, M.D.'s NPI number?

Timothy R. Diles, M.D.'s National Provider Identifier (NPI) is 1467448332, issued on Sep 26, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Timothy R. Diles, M.D. located?

The NPPES record lists a practice address at 500 S University Ave, Little Rock, AR, 72205. Phone: (501) 664-4532. Providers update this record themselves, so call before visiting.

How can I verify Timothy R. Diles, M.D.'s license?

NPPES lists Arkansas license number E-1168, 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.

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.