1. Home
  2. Directory
  3. Washington
  4. Bellevue
  5. Family Medicine
  6. NPI Profile

NICOLE O'MALLEY M.D.
NPI 1558775486
Family Medicine - Sleep Medicine in Bellevue, WA

Active since June 18, 2014PECOS EnrolledAccepts Medicare Assignment
1100 112TH AVE NE STE 320, BELLEVUE, WA 98004(425) 289-3000 Get Directions Write a Review

NPPES record last updated: December 5, 2023. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Dec 5, 2023, Jul 2, 2021, Jan 30, 2021 (3 updates tracked since 2021).

About Nicole O'malley M.d. NPPES

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

NICOLE O'MALLEY M.D. (NPI 1558775486) is an individual sleep medicine provider in Bellevue, Washington, licensed in Washington (61470679) and active in the NPI registry since June 2014. She is enrolled in Medicare PECOS, is affiliated with Mitchell County Hospital Health Systems, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1558775486
Entity TypeIndividualFemale
Primary Taxonomy207QS1201X
Provider Legal NameNICOLE O'MALLEYCredential: M.D.
Location Address1100 112TH AVE NE STE 320Bellevue, WA 98004-4511
Mailing Address1035 116th Ave NeBellevue, WA 98004-4604 · (425) 289-3000
Phone(425) 289-3000
Sole ProprietorYes
Medical School CMSOtherGraduated 2014
Enumeration DateJune 18, 2014
Last NPPES UpdateDecember 5, 20233 updates tracked since enumeration
NPPES CertifiedDecember 5, 2023
✔ NPI 1558775486 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyFamily Medicine · Sleep MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207QS1201X
Licenses✔ Licensed in WA · 61470679✔ Licensed in CO · DR.0066683
Definition
A Family Medicine Physician 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 ListedFamily MedicineTaxonomy 207Q00000X · License 9408481 (KS)
1100 112TH AVE NE STE 320, Bellevue, WA 98004
Open in Google Maps ↗

Secondary Practice Locations 3

Location 13901 Rainbow Blvd, MS4010 Family MedicineKansas City, KS 66160-8500 · Phone (913) 588-1902 · Fax (913) 588-8387
Location 21630 Dry Creek Dr Ste 200Longmont, CO 80503-6405 · Phone (720) 279-9098
Location 31035 116th Ave NEBellevue, WA 98004-4604 · Phone (425) 289-3000

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Blue Cross and Blue Shield of Kansas, Inc., Blue Cross Blue Shield of Wyoming 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

Nicole O'malley 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 ID3779889845
PECOS Enrollment IDI20231207001555
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

6

Medicare enrollment records show Nicole O'malley reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Overlake Medical Clinics, LLC
0.2 mi
Specialist
1135 116TH AVE NE, SUITE 110
Bellevue, WA 98004
  • Reassigned Medicare billing, Washington enrollment
  • 566 clinicians in this Medicare group
NPI 1801828421 (425) 688-5670
Memorial Hospital Of Carbon County
836 mi
General Acute Care Hospital
2221 W ELM ST
Rawlins, WY 82301
  • Reassigned Medicare billing, Wyoming enrollment
  • Also billed through NPI 1710298757 (Wyoming)
  • 43 clinicians in this Medicare group
NPI 1417031311 (307) 324-2221
Rush County Memorial Hospital
1,310 mi
Rural
801 LOCUST
La Crosse, KS 67548
  • Reassigned Medicare billing, Kansas enrollment
  • 18 clinicians in this Medicare group
NPI 1841240959 (785) 222-2545
Mitchell County Hospital Health Systems
1,326 mi
Critical Access
400 WEST 8TH STREET
Beloit, KS 67420
  • Reassigned Medicare billing, Kansas enrollment
  • 13 clinicians in this Medicare group
NPI 1427151992 (785) 738-2266
Kansas University Physicians Inc
1,500 mi
Obstetrics & Gynecology
4000 CAMBRIDGE ST
Kansas City, KS 66160
  • Reassigned Medicare billing, Kansas enrollment
  • 2,139 clinicians in this Medicare group
NPI 1053457978 (913) 588-1227
Hospitalist Medicine Physicians Of Ohio, Professional Corporation
2,014 mi
Internal Medicine
6001 E BROAD ST
Columbus, OH 43213
  • Reassigned Medicare billing, Ohio enrollment
  • 776 clinicians in this Medicare group
NPI 1043572290 (614) 234-7535

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 8

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 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.
402 services337 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.
127 services127 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.
46 services41 patients
Therapy procedure using a positive pressure ventilator 94660
A positive pressure ventilator is a device that helps with breathing. It pushes air into the lungs to assist in maintaining oxygen levels. This can be essential for patients with conditions that affect their ability to breathe independently. It's non-invasive and comfortable.
38 services30 patients
Home sleep test (hst) with type iii portable monitor, unattended; minimum of 4 channels: 2 respiratory movement/airflow, 1 ecg/heart rate and 1 oxygen saturation G0399
A Home Sleep Test (HST) with a Type III Portable Monitor is an unattended test that records your breathing, heart rate, and oxygen levels during sleep. This test uses a minimum of 4 channels to monitor these parameters, helping to diagnose sleep disorders.
38 services35 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
35 services32 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Mitchell County Hospital Health Systems

Critical Access Hospitals · Beloit, KS
OwnershipGovernment - Local
CMS Certification Number171375
Location400 W 8th Street, P O Box 399Beloit, KS 67420 · Mitchell County
Emergency services Birthing friendly

Overlake Hospital Medical Center

Acute Care Hospitals · Bellevue, WA
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number500051
Location1035-116th Ave NEBellevue, WA 98004 · King County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98004 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
$97.43 typical visit price
range $63.67 – $189.37
Typical copayment $24.35 (range $15.91 – $47.34)
Most-billed visit code 99203
Established Patient
$111.00 typical visit price
range $21.12 – $155.00
Typical copayment $27.75 (range $5.28 – $38.75)
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.

Reported Quality Measures

Care Plan
Percentage of patients aged 65 years and older who have an advance care plan or surrogate decision maker documented in the medical record that an advance care plan was discussed but the patient did not wish or was not able to name a surrogate decision maker…
99%140 patients4/55-star benchmark: 100%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 15

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
11 suppliers267 claims267 services$37.70 avg. paid by Medicare
Full face mask used with positive airway pressure device, each A7030
DME-Other DME · category DE001N
9 suppliers62 claims62 services$90.11 avg. paid by Medicare
Face mask interface, replacement for full face mask, each A7031
DME-Other DME · category DE001N
8 suppliers63 claims136 services$33.04 avg. paid by Medicare
Cushion for use on nasal mask interface, replacement only, each A7032
DME-Other DME · category DE001N
4 suppliers118 claims591 services$19.02 avg. paid by Medicare
Pillow for use on nasal cannula type interface, replacement only, pair A7033
DME-Other DME · category DE001N
7 suppliers131 claims683 services$14.85 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
9 suppliers234 claims234 services$57.04 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 2

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

THA AUNG SAW MD
Internal Medicine (Sleep Medicine)
1100 112TH AVE NE STE 320
BELLEVUE, WA 98004
King County (425) 289-3000
DR. REUBEN D. WALIA M.D
Family Medicine (Sleep Medicine)
1100 112TH AVE NE STE 320
BELLEVUE, WA 98004
King County (425) 289-3000

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 Nicole O'malley's NPI number?

The NPI number for Nicole O'malley is 1558775486. It was assigned to this individual provider in the NPPES registry on June 18, 2014.

Where is Nicole O'malley located?

Nicole O'malley practices at 1100 112th Ave NE Ste 320, Bellevue, WA 98004. The listed phone number is (425) 289-3000.

What is Nicole O'malley's specialty?

The primary specialty registered for this NPI is Family Medicine, specializing in Sleep Medicine, with taxonomy code 207QS1201X.

Is Nicole O'malley enrolled in Medicare?

Yes. Nicole O'malley 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 Nicole O'malley's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nicole O'malley reassigns Medicare benefits to 6 organizations: Overlake Medical Clinics, LLC (Bellevue, WA), Memorial Hospital Of Carbon County (Rawlins, WY), Rush County Memorial Hospital (La Crosse, KS), Mitchell County Hospital Health Systems (Beloit, KS), Kansas University Physicians Inc (Kansas City, KS) and 1 more organization, listed in the Medicare section above. 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 Nicole O'malley's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Nicole O'malley accept?

Health plans from Ambetter Health, Blue Cross Blue Shield of Wyoming, Blue Cross and Blue Shield of Kansas, Inc., Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Nicole O'malley 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.

Is Nicole O'malley affiliated with any hospitals?

According to CMS data, Nicole O'malley is affiliated with Mitchell County Hospital Health Systems and Overlake Hospital Medical Center.

When was this NPI record last updated?

The NPPES record for Nicole O'malley was last updated on December 5, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.