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WILLIAM THOMAS ATCHLEY MD, PHD
NPI 1649513847
Internal Medicine - Critical Care Medicine in Little Rock, AR

Active since April 05, 2013PECOS EnrolledAccepts Medicare Assignment
4301 W MARKHAM ST # 547-15, LITTLE ROCK, AR 72205(501) 603-1400(501) 613-1480 Get Directions Write a Review

NPPES record last updated: July 16, 2020. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 16, 2020, Jun 15, 2020, Mar 17, 2018 and 1 more (4 updates tracked since 2017).

About William Thomas Atchley Md, Phd NPPES

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

WILLIAM THOMAS ATCHLEY MD, PHD (NPI 1649513847) is an individual critical care medicine provider in Little Rock, Arkansas, licensed in Arkansas (E-9352) and active in the NPI registry since April 2013. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of University Of Arkansas College Of Medicine (2013).

NPPES Registry Identity

NPI1649513847
Entity TypeIndividualMale
Primary Taxonomy207RC0200X
Provider Legal NameWILLIAM THOMAS ATCHLEYCredential: MD, PHD
Location Address4301 W MARKHAM ST # 547-15Little Rock, AR 72205-7101
Mailing AddressPo Box 251420Little Rock, AR 72225-1420 · (501) 614-2006 · Fax (501) 526-5148
Phone(501) 603-1400
Fax(501) 613-1480
Sole ProprietorNo
Medical School CMSUniversity Of Arkansas College Of MedicineGraduated 2013
Enumeration DateApril 5, 2013
Last NPPES UpdateJuly 16, 20204 updates tracked since enumeration
NPPES CertifiedJuly 16, 2020
✔ NPI 1649513847 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Critical Care MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RC0200X
License✔ Licensed in AR · E-9352
Definition
An internist who diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.
Also ListedInternal Medicine · Pulmonary DiseaseTaxonomy 207RP1001X · License 2017-00698 (NC), E-9352 (AR)
4301 W MARKHAM ST # 547-15, Little Rock, AR 72205
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Secondary Practice Locations 2

Location 14301 W Markham StLittle Rock, AR 72205-7101 · Phone (501) 686-7000
Location 2101 Manning DrChapel Hill, NC 27514-4220 · Phone (501) 920-5912

Accepted Insurance

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

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

William Thomas Atchley Md, Phd 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 ID9739404526
PECOS Enrollment IDI20160621000968
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.

Areas of Expertise CMS Part B claims 11

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.

Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
217 services79 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
64 services44 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
62 services48 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
26 services26 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
22 services22 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
15 services14 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 72205 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$119.36 typical visit price
range $51.36 – $157.74
Typical copayment $29.84 (range $12.84 – $39.43)
Most-billed visit code 99204
Established Patient
$91.63 typical visit price
range $16.16 – $128.77
Typical copayment $22.90 (range $4.04 – $32.19)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 5

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
3 suppliers17 claims17 services$18.36 avg. paid by Medicare
Home ventilator, any type, used with non-invasive interface, (e.g., mask, chest shell) E0466
DME-Other DME · category DE005N
1 supplier17 claims17 services$897.49 avg. paid by Medicare
Nebulizer, with compressor E0570
DME-Other DME · category DE000N
2 suppliers21 claims21 services$3.43 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
3 suppliers17 claims17 services$89.12 avg. paid by Medicare
Pharmacy dispensing fee for inhalation drug(s); per 30 days Q0513
DME-Other DME · category DE000N
7 suppliers17 claims17 services$25.98 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 William Atchley's NPI number?

The NPI number for William Atchley is 1649513847. It was assigned to this individual provider in the NPPES registry on April 5, 2013.

Where is William Atchley located?

William Atchley practices at 4301 W Markham St # 547-15, Little Rock, AR 72205. The listed phone number is (501) 603-1400.

What is William Atchley's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.

Is William Atchley enrolled in Medicare?

Yes. William Atchley 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.

What insurance does William Atchley accept?

Health plans from Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health, Ambetter from Louisiana Healthcare Connections, Ambetter from Magnolia Health and Ambetter from Superior HealthPlan and 5 other insurers list William Atchley 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 William Atchley was last updated on July 16, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.