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TIMOTHY R DILES M.D.
NPI 1467448332
Anesthesiology in Little Rock, AR

Active since September 26, 2005PECOS EnrolledAccepts Medicare Assignment
500 S UNIVERSITY AVE, SUITE 505, LITTLE ROCK, AR 72205(501) 664-4532(501) 663-4335 Get Directions Write a Review

NPPES record last updated: December 4, 2007. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Timothy R Diles M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

TIMOTHY R DILES M.D. (NPI 1467448332) is an individual anesthesiology provider in Little Rock, Arkansas, licensed in Arkansas (E-1168) and active in the NPI registry since September 2005. He is enrolled in Medicare PECOS and is a graduate of University Of Arkansas College Of Medicine (1994).

NPPES Registry Identity

NPI1467448332
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameTIMOTHY R DILESCredential: M.D.
Location Address500 S UNIVERSITY AVE, SUITE 505Little Rock, AR 72205-5307
Mailing Address500 S University Ave, Suite 505Little Rock, AR 72205-5307 · (501) 664-4532 · Fax (501) 663-4335
Phone(501) 664-4532
Fax(501) 663-4335
Sole ProprietorNo
Medical School CMSUniversity Of Arkansas College Of MedicineGraduated 1994
Enumeration DateSeptember 26, 2005
Last NPPES UpdateDecember 4, 2007
✔ NPI 1467448332 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in AR · E-1168
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
Also ListedAnesthesiology · Pain MedicineTaxonomy 207LP2900X · License E-1168 (AR)
500 S UNIVERSITY AVE, Little Rock, AR 72205
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Other Identifiers 6

OtherS04176AR · Novasys
Other17966000020AR · Qual Choice (lrpm)
Medicare ID-Type Unspecified5K806AR
Medicare UPING70103AR
Other5K806AR · Blue Cross Blue Shield
Other71033532430AR · Qual Choice

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Timothy R Diles M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9133110893
PECOS Enrollment IDI20070119000461
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Timothy Diles reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Arkansas Surgical Hospital, LLC
3.6 mi
Anesthesiology
5201 NORTHSHORE DR
North Little Rock, AR 72118
  • Reassigned Medicare billing, Arkansas enrollment
  • 76 clinicians in this Medicare group
NPI 1265192835 (501) 748-8089
Arkansas Anesthesia Associates, PLLC.
18 mi
Anesthesiology
1 MEDICAL PARK DR
Benton, AR 72015
  • Reassigned Medicare billing, Arkansas enrollment
  • 182 clinicians in this Medicare group
NPI 1497023360 (501) 771-4693

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) 64447
This procedure involves injecting a numbing agent and/or steroid into a nerve in your thigh. It's done to alleviate pain or inflammation. A needle will be carefully positioned near the nerve, and the medicine will be administered.
166 services163 patients
Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) 64415
This procedure involves injecting a numbing agent or steroid into your arm's nerve bundle. It's done to manage pain or inflammation. The injection helps block nerve signals that cause discomfort, providing relief. It's a safe, common procedure.
48 services48 patients
Anesthesia for procedure for total knee joint replacement 01402
Anesthesia for a total knee joint replacement numbs your body to eliminate pain during surgery. This could be general anesthesia where you're unconscious, or regional anesthesia where only the leg is numb. It's administered by a specialist, ensuring safety and comfort.
13 services13 patients

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR ANIKA T WHITFIELD LLC
Podiatrist (Foot Surgery)
500 S UNIVERSITY AVE, SUITE 707
LITTLE ROCK, AR 72205
Pulaski County (501) 614-7800
DR. DONNA MELISSA GRAHAM M.D.
Allergy & Immunology
500 S UNIVERSITY AVE, SUITE 215
LITTLE ROCK, AR 72205
Pulaski County (501) 420-1085
PRIMARY CARE OF ARKANSAS CHRYSTAL JOHNSON MD
Family Medicine
500 S UNIVERSITY AVE, SUITE 515
LITTLE ROCK, AR 72205
Pulaski County (501) 666-6100
FRANCES L MCCULLOUGH RNP
Registered Nurse
500 S UNIVERSITY AVE, SUITE 815
LITTLE ROCK, AR 72205
Pulaski County (501) 663-8900
KASHAF AFZAL RASHEED MD
Internal Medicine (Nephrology)
500 S UNIVERSITY AVE, SUITE 508
LITTLE ROCK, AR 72205
Pulaski County (501) 588-1100
ST VINCENT BREAST CANCER & MAMMOGRAPHY SCREENING CENTER LLC
Clinic/Center (Radiology, Mammography)
500 S UNIVERSITY AVE, SUITE 114
LITTLE ROCK, AR 72205
Pulaski County (501) 661-9766
JODI M BARBOZA MD
Radiology (Diagnostic Radiology)
500 S UNIVERSITY AVE, SUITE 101
LITTLE ROCK, AR 72205
Pulaski County (501) 664-3914
MIKE C UMERAH MD
Physical Medicine & Rehabilitation
500 S UNIVERSITY AVE, SUITE 705
LITTLE ROCK, AR 72205
Pulaski County (501) 664-2991

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Timothy Diles's NPI number?

The NPI number for Timothy Diles is 1467448332. It was assigned to this individual provider in the NPPES registry on September 26, 2005.

Where is Timothy Diles located?

Timothy Diles practices at 500 S University Ave Suite 505, Little Rock, AR 72205. The listed phone number is (501) 664-4532.

What is Timothy Diles's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Timothy Diles enrolled in Medicare?

Yes. Timothy Diles is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Timothy Diles's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Timothy Diles reassigns Medicare benefits to 2 organizations: Arkansas Surgical Hospital, LLC (North Little Rock, AR) and Arkansas Anesthesia Associates, PLLC. (Benton, AR). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Timothy Diles's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Timothy Diles accept?

Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 4 other insurers list Timothy Diles as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Timothy Diles was last updated on December 4, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.