DR. STEPHEN PAUL DUNTLEY MD
NPI 1023036720
Psychiatry & Neurology - Sleep Medicine in Aurora, CO

Q: What is Stephen Duntley's NPI number?

The NPI number for Stephen Duntley is 1023036720. It was assigned to this individual provider in the NPPES registry on July 18, 2006.

Q: What is Stephen Duntley's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Sleep Medicine, with taxonomy code 2084S0012X.

Q: When was this NPI record last updated?

The NPPES record for Stephen Duntley was last updated on October 28, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months 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.

Active since July 18, 2006PECOS EnrolledAccepts Medicare Assignment

97.58/100

CMS Quality Rating

12401 E 17TH AVE, AURORA, CO 80045(720) 848-0000 Get Directions Write a Review

NPPES record last updated: October 28, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

On this page

About Dr. Stephen Paul Duntley Md NPPES

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

DR. STEPHEN PAUL DUNTLEY MD (NPI 1023036720) is an individual sleep medicine provider in Aurora, Colorado, licensed in Colorado (52200) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of University Of Washington School Of Medicine (1988).

NPPES Registry Identity

NPI1023036720

Entity TypeIndividualMale

Primary Taxonomy2084S0012X

Provider Legal NameDR. STEPHEN PAUL DUNTLEYCredential: MD

Location Address12401 E 17TH AVEAurora, CO 80045-2548

Mailing AddressPo Box 110429Aurora, CO 80042-0429

Phone(720) 848-0000

Sole ProprietorNo

Medical School CMSUniversity Of Washington School Of MedicineGraduated 1988

Enumeration DateJuly 18, 2006

Last NPPES UpdateOctober 28, 2025

NPPES CertifiedOctober 28, 2025

✔ NPI 1023036720 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyPsychiatry & Neurology · Sleep MedicineAllopathic & Osteopathic Physicians

Taxonomy Code2084S0012X

Licenses✔ Licensed in CO · 52200✔ Licensed in MO · R9J08

Definition

A Psychiatrist or Neurologist who practices Sleep Medicine is certified in the subspecialty of sleep medicine and specializes in the clinical assessment, physiologic testing, diagnosis, management and prevention of sleep and circadian rhythm disorders. Sleep specialists treat patients of any age and use multidisciplinary approaches. Disorders managed by sleep specialists include, but are not limited to, sleep related breathing disorders, insomnia, hypersomnias, circadian rhythm sleep disorders, parasomnias and sleep related movement disorders.

Also ListedInternal Medicine · Pulmonary DiseaseTaxonomy 207RP1001X · License DR.0052200 (CO)

Also ListedPsychiatry & Neurology · NeurologyTaxonomy 2084N0400X · License R9J08 (MO)

12401 E 17TH AVE, Aurora, CO 80045

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Secondary Practice Locations 2

Location 112605 E 16th AveAurora, CO 80045 · Phone (720) 848-0000

Location 2274 Union Blvd, Suite 110Lakewood, CO 80228-1813 · Phone (303) 951-0600 · Fax (303) 951-0605

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include UnitedHealthcare.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

Dr. Stephen Paul Duntley Md 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 ID4880726033

PECOS Enrollment IDI20130805000312

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 13

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.

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.

159 services135 patients

Sleep study including heart rate, breathing, and sleep time 95800

A sleep study monitors your sleep patterns to evaluate your sleep quality. It records your heart rate, breathing, and actual sleep time. This information helps identify any sleep disorders, ensuring you get the rest you need for optimal health.

78 services55 patients

Sleep study including heart rate, breathing, airflow, and effort 95806

A sleep study monitors your heart rate, breathing patterns, airflow, and physical effort while you sleep. It helps identify sleep disorders by tracking your sleep stages and cycles. This data aids doctors in diagnosing and treating sleep-related issues.

64 services62 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

52 services52 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

52 services49 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.

41 services39 patients

Sleep study in sleep lab with continuous airway pressure (6 years or older) 95811

A sleep study in a sleep lab with continuous airway pressure is a test for individuals aged 6 and above. It monitors your sleep patterns to check for disorders like sleep apnea. Continuous airway pressure helps keep your airways open while you sleep, improving your breathing.

35 services34 patients

Sleep study in sleep lab with continuous airway pressure (6 years or older) 95811

35 services34 patients

Sleep study in sleep lab (6 years or older) 95810

A sleep study in a sleep lab is a non-invasive overnight test that monitors your body while you sleep. It helps doctors understand your sleep patterns and identify any issues like sleep apnea or insomnia. You'll be connected to equipment that tracks your heart rate, brain waves, breathing, and movements.

19 services19 patients

Sleep study in sleep lab (6 years or older) 95810

16 services16 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

14 services14 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.

13 services13 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

13 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 80045 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

$132.55 typical visit price

range $58.06 – $174.82

Typical copayment $33.13 (range $14.51 – $43.70)

Most-billed visit code 99204

Established Patient

$102.03 typical visit price

range $18.88 – $142.79

Typical copayment $25.50 (range $4.72 – $35.69)

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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

97.58/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored through an Alternative Payment Model

Quality

86.53

Promoting Interoperability

100

Improvement Activities

Referred Medical Equipment & Supplies CMS DME claims 22

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

Tubing with integrated heating element for use with positive airway pressure device A4604

DME-Other DME · category DE001N

32 suppliers265 claims266 services$34.32 avg. paid by Medicare

Full face mask used with positive airway pressure device, each A7030

DME-Other DME · category DE001N

26 suppliers209 claims209 services$75.42 avg. paid by Medicare

Face mask interface, replacement for full face mask, each A7031

DME-Other DME · category DE001N

26 suppliers206 claims541 services$27.75 avg. paid by Medicare

Cushion for use on nasal mask interface, replacement only, each A7032

DME-Other DME · category DE001N

18 suppliers152 claims795 services$15.65 avg. paid by Medicare

Pillow for use on nasal cannula type interface, replacement only, pair A7033

DME-Other DME · category DE001N

12 suppliers48 claims257 services$12.19 avg. paid by Medicare

Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap A7034

DME-Other DME · category DE001N

24 suppliers194 claims194 services$46.56 avg. paid by Medicare

Headgear used with positive airway pressure device A7035

DME-Other DME · category DE001N

33 suppliers242 claims242 services$15.51 avg. paid by Medicare

Chinstrap used with positive airway pressure device A7036

DME-Other DME · category DE001N

9 suppliers31 claims31 services$9.02 avg. paid by Medicare

Tubing used with positive airway pressure device A7037

DME-Other DME · category DE001N

14 suppliers98 claims98 services$10.53 avg. paid by Medicare

Filter, disposable, used with positive airway pressure device A7038

DME-Other DME · category DE001N

36 suppliers376 claims2,128 services$1.77 avg. paid by Medicare

Filter, non disposable, used with positive airway pressure device A7039

DME-Other DME · category DE001N

12 suppliers40 claims40 services$5.11 avg. paid by Medicare

Water chamber for humidifier, used with positive airway pressure device, replacement, each A7046

DME-Other DME · category DE001N

23 suppliers147 claims147 services$10.54 avg. paid by Medicare

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431

DME-Oxygen and Supplies · category DC000N

2 suppliers13 claims13 services$14.48 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 supplier12 claims12 services$768.64 avg. paid by Medicare

Respiratory assist device, bi-level pressure capability, without backup rate feature, used with noninvasive interface, e.g., nasal or facial mask (intermittent assist device with continuous positive airway pressure device) E0470

DME-Other DME · category DE001N

9 suppliers85 claims87 services$73.74 avg. paid by Medicare

Respiratory assist device, bi-level pressure capability, with back-up rate feature, used with noninvasive interface, e.g., nasal or facial mask (intermittent assist device with continuous positive airway pressure device) E0471

DME-Other DME · category DE001N

7 suppliers78 claims78 services$191.95 avg. paid by Medicare

Humidifier, heated, used with positive airway pressure device E0562

DME-Other DME · category DE001N

12 suppliers37 claims37 services$119.84 avg. paid by Medicare

Humidifier, heated, used with positive airway pressure device E0562

DME-Other DME · category DE001N

8 suppliers125 claims127 services$11.35 avg. paid by Medicare

Continuous positive airway pressure (cpap) device E0601

DME-Other DME · category DE001N

21 suppliers412 claims413 services$27.67 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

11 suppliers102 claims103 services$66.79 avg. paid by Medicare

Portable oxygen concentrator, rental E1392

DME-Oxygen and Supplies · category DC002N

1 supplier12 claims12 services$33.95 avg. paid by Medicare

Portable gaseous oxygen system, rental; home compressor used to fill portable oxygen cylinders; includes portable containers, regulator, flowmeter, humidifier, cannula or mask, and tubing K0738

DME-Oxygen and Supplies · category DC000N

3 suppliers18 claims18 services$33.77 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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. ANDREW KOCHVAR DO

Student in an Organized Health Care Education/Training Program

12401 E 17TH AVE
AURORA, CO 80045

Adams County (720) 848-0000

TIFFANY ANN GOOLSBY PHARMD

Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)

12401 E 17TH AVE
AURORA, CO 80045

Adams County (720) 848-8602

DR. HEMALI P PATEL M.D.

Hospitalist

12401 E 17TH AVE, SUITE 450B MAIL STOP F-782
AURORA, CO 80045

Adams County (720) 848-4289

ANDREW MANSOUR PHARMD

Pharmacist

12401 E 17TH AVE
AURORA, CO 80045

Adams County (720) 848-7873

ANTONIO CERVANTES GONZALEZ

Student in an Organized Health Care Education/Training Program

12401 E 17TH AVE
AURORA, CO 80045

Adams County (303) 724-7422

DR. JEANNETTE GUERRASIO MD

Hospitalist

12401 E 17TH AVE, MAIL CODE F782
AURORA, CO 80045

Adams County (720) 848-4289

ANDREW HENNINGER RN

Registered Nurse

12401 E 17TH AVE
AURORA, CO 80045

Adams County (720) 848-0000

DANIELLE WADE LCSW

Social Worker (Clinical)

12401 E 17TH AVE
AURORA, CO 80045

Adams County (720) 848-0000

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 Stephen Duntley's NPI number?

The NPI number for Stephen Duntley is 1023036720. It was assigned to this individual provider in the NPPES registry on July 18, 2006.

Where is Stephen Duntley located?

Stephen Duntley practices at 12401 E 17th Ave, Aurora, CO 80045. The listed phone number is (720) 848-0000.

What is Stephen Duntley's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Sleep Medicine, with taxonomy code 2084S0012X.

Is Stephen Duntley enrolled in Medicare?

Yes. Stephen Duntley 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 Stephen Duntley accept?

Health plans from UnitedHealthcare list Stephen Duntley 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 Stephen Duntley was last updated on October 28, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months 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.