NPPES file of Aug 9, 2026

William Thomas Atchley, MD, PHD

Critical Care Medicine (Internal Medicine) Physician · Little Rock, AR

William Thomas Atchley, MD, PHD is a critical care medicine (internal medicine) physician with a practice address in Little Rock, Arkansas, and NPI 1649513847, issued on Apr 5, 2013. Check the license (Arkansas E-9352, 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
1649513847
Name
William Thomas Atchley
Credential
MD, PHD
Primary taxonomy
Critical Care Medicine (Internal Medicine) Physician 207RC0200X
License numbers
E-9352 AR
2017-00698 NC
Self-reported in NPPES; status is on the state search
Practice location
4301 W Markham St # 547-15, Little Rock, AR 72205
Phone
(501) 603-1400
Enumerated
Apr 5, 2013
Record last updated
Jul 16, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(501) 613-1480
Medicare enrollment
Enrolled (PECOS I20160621000968); accepts Medicare assignment
Medical or professional school
University Of Arkansas College Of Medicine, 2013
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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Verify William Thomas Atchley 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-9352
    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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15% fewer Medicare Part D claims than the average critical care medicine (internal medicine) physician in 2024

591 Medicare Part D claims for 98 beneficiaries, against an average of 696 among the 2,873 providers of this specialty who prescribed in Part D. Brand-name drugs were 68% of claims.

  1. William Atchley591
  2. Specialty average696

Most prescribed

  1. Breztri Aerosphere119 claims
  2. Albuterol Sulfate Hfa62 claims
  3. Symbicort42 claims
  4. Montelukast Sodium34 claims
  5. Trelegy Ellipta30 claims
  6. Spiriva Respimat24 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: $22.75

1 payment: food and beverage; the largest payer was Boston Scientific Corporation. The 2,708 providers of this specialty with any payment received $2,958.68 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. William Atchley$22.75
  2. Specialty average$2,958.68

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

Bills Medicare through one group practice

  1. University OF Arkansas For Medical SciencesLittle Rock, AR

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

William Thomas Atchley among 29 critical care medicine (internal medicine) physician records in Arkansas

William Thomas Atchley, MD, PHD is one of 29 critical care medicine (internal medicine) physician records with a practice address in Arkansas. 93% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 48% of them.

  • NPI issued2013 · 48% of these records are older, 45% newer
  • In a Medicare fileYes · 93% of these records are
  • In the CMS Doctors and Clinicians fileYes · 83% of these records are
  • Graduated2013 · median 2008 among the 24 with a school on file
  • Record last updated2020 · 38% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a Arkansas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Critical Care Medicine (Internal Medicine) Physician providers in Arkansas

There are 29 critical care medicine (internal medicine) physician records in Arkansas.

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

  1. Shahrukh ArifLittle Rock, AR 722051548613961
  2. Mohamed Attia, M.D.Little Rock, AR 722051144617754
  3. J Beaton, M.D.Little Rock, AR 722051740218676
  4. Howard Corwin, M.D.Little Rock, AR 722051609899228
  5. Lalasa Doppalapudi, M.D.Little Rock, AR 722051982270658
  6. Cidney Hulett, MD, MPHLittle Rock, AR 722051598960270
  7. Austin Knott, MDLittle Rock, AR 722051396164125
  8. Khanh Le, M.D.Little Rock, AR 722051487074530

Common questions

What is William Thomas Atchley, MD, PHD's NPI number?

William Thomas Atchley, MD, PHD's National Provider Identifier (NPI) is 1649513847, issued on Apr 5, 2013. An NPI identifies a provider in billing; it is not a license.

Where is William Thomas Atchley, MD, PHD located?

The NPPES record lists a practice address at 4301 W Markham St # 547-15, Little Rock, AR, 72205. Phone: (501) 603-1400. Providers update this record themselves, so call before visiting.

How can I verify William Thomas Atchley, MD, PHD's license?

NPPES lists Arkansas license number E-9352, 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 William Thomas Atchley, MD, PHD prescribe under Medicare Part D?

In 2024, William Thomas Atchley, MD, PHD had 591 Medicare Part D claims for 98 beneficiaries; the average among critical care medicine (internal medicine) physician prescribers was 696. 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.