Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

TOMASZ M ZIEDALSKI MD
NPI 1265473854
Internal Medicine - Pulmonary Disease in Everett, WA

Q: What is Tomasz Ziedalski's NPI number?

The NPI number for Tomasz Ziedalski is 1265473854. It was assigned to this individual provider in the NPPES registry on June 8, 2006.

Q: What is Tomasz Ziedalski's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.

Q: When was this NPI record last updated?

The NPPES record for Tomasz Ziedalski was last updated on September 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 59 days 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 June 08, 2006PECOS EnrolledAccepts Medicare Assignment

12728 19TH AVE. SE, SUITE 200, EVERETT, WA 98208(425) 252-1116(425) 252-1118 Get Directions Write a Review

NPPES record last updated: September 10, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

On this page

About Tomasz M Ziedalski Md NPPES

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

TOMASZ M ZIEDALSKI MD (NPI 1265473854) is an individual pulmonary disease provider in Everett, Washington, licensed in Washington (MD00043384) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Skagit Valley Hospital, and maintains a secondary practice location in Anacortes.

NPPES Registry Identity

NPI1265473854

Entity TypeIndividualMale

Primary Taxonomy207RP1001X

Provider Legal NameTOMASZ M ZIEDALSKICredential: MD

Location Address12728 19TH AVE. SE, SUITE 200Everett, WA 98208-6647

Mailing Address12728 19th Ave Se Ste 200Everett, WA 98208-6676 · (425) 252-1116 · Fax (425) 252-1118

Phone(425) 252-1116

Fax(425) 252-1118

Sole ProprietorNo

Medical School CMSUniversity Of Washington School Of MedicineGraduated 1997

Enumeration DateJune 8, 2006

Last NPPES UpdateSeptember 10, 2026

NPPES CertifiedSeptember 10, 2026

✔ NPI 1265473854 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Pulmonary DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RP1001X

License✔ Licensed in WA · MD00043384

Definition

An internist who treats diseases of the lungs and airways. The pulmonologist diagnoses and treats cancer, pneumonia, pleurisy, asthma, occupational and environmental diseases, bronchitis, sleep disorders, emphysema and other complex disorders of the lungs.

Also ListedInternal Medicine · Critical Care MedicineTaxonomy 207RC0200X · License MD00043384 (WA)

Also ListedInternal Medicine · Sleep MedicineTaxonomy 207RS0012X · License MD00043384 (WA)

12728 19TH AVE. SE, Everett, WA 98208

Open in Google Maps ↗

Secondary Practice Location 1

Location 11110 22nd StAnacortes, WA 98221-2522 · Phone (360) 299-4242

Other Identifiers 5

Medicaid8395766WA

OtherP00145102WA · Railroad Medicare

Other0186417WA · Labor And Industry

OtherP00717628WA · Railroad Medicare

OtherMD00043384WA · State License Number

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Premera Blue Cross Blue Shield of Alaska, Providence Health Plan.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

Tomasz M Ziedalski 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 ID8426039520

PECOS Enrollment IDI20040623000672

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

Medicare enrollment records show Tomasz Ziedalski reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Western Washington Medical Group, Inc Ps

Same address

Psychiatry

12728 19TH AVE SE STE 300
Everett, WA 98208

Reassigned Medicare billing, Washington enrollment
90 clinicians in this Medicare group

NPI 1396413803 (425) 252-1116

Public Hospital Dist No 1 Skagit

18 mi

Primary Care

405 W. STANLEY STREET
Granite Falls, WA 98252

Reassigned Medicare billing, Washington enrollment
463 clinicians in this Medicare group

NPI 1033164470 (360) 619-2419

Public Hospital District No 2 Skagit County Washington

47 mi

General Acute Care Hospital

1211 24TH ST
Anacortes, WA 98221

Reassigned Medicare billing, Washington enrollment
136 clinicians in this Medicare group

NPI 1164447850 (360) 299-1350

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 24

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.

224 services99 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.

111 services75 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.

93 services73 patients

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

82 services68 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

64 services31 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.

57 services47 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.

56 services56 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.

55 services54 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

53 services53 patients

Test to measure expiratory airflow and volume changes before and after medication administration 94060

This procedure measures how air flows in and out of your lungs. It's done before and after medication to see if the treatment improves your breathing. It's a simple, non-invasive test that involves breathing into a device called a spirometer.

28 services28 patients

Test to examine how well the lungs exchange gases 94729

This is a test called a pulmonary function test, which helps understand the efficiency of your lungs. It measures how much air your lungs can hold, how quickly you can move air in and out of your lungs, and how well your lungs put oxygen into and remove carbon dioxide from your blood.

27 services27 patients

Test to determine lung volumes using sensors 94726

This test, called spirometry, measures lung capacity using sensors. You breathe into a mouthpiece attached to a device that records the amount and rate of air you inhale and exhale. It helps diagnose and monitor lung conditions.

26 services26 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.

22 services22 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

19 services19 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.

19 services17 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

17 services14 patients

Critical care, each additional 30 minutes 99292

Critical care refers to special attention given to patients facing life-threatening conditions. Each additional 30 minutes indicates the extension of this specialized care. This might include close monitoring, medication adjustments, and immediate interventions as needed.

17 services11 patients

Test to measure the level of nitric oxide gas 95012

A test to measure the level of nitric oxide gas helps assess inflammation in the lungs, often linked with asthma. You'll breathe into a device, and it'll provide a reading of nitric oxide levels. This helps monitor and manage respiratory conditions.

15 services14 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

14 services14 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.

12 services12 patients

Insertion of non-tunneled central venous tube for infusion (5 years or older) 36556

This procedure involves placing a thin tube into a large vein, usually in the neck or chest, to administer medication or fluids. It's done under local anesthesia to minimize discomfort. It's a standard, safe procedure for individuals aged 5 and above.

11 services11 patients

Test to determine lung volumes using sensors 94726

11 services11 patients

Test to examine how well the lungs exchange gases 94729

11 services11 patients

Hospital discharge day management, 30 minutes or less 99238

Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.

11 services11 patients

Hospital Affiliations CMS Care Compare 5

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

Skagit Valley Hospital

Acute Care Hospitals · Mount Vernon, WA

3/5 CMS rating

OwnershipGovernment - Hospital District or Authority

CMS Certification Number500003

Location1415 E Kincaid StreetMount Vernon, WA 98274 · Skagit County

Emergency services Birthing friendly

Island Hospital

Acute Care Hospitals · Anacortes, WA

5/5 CMS rating

OwnershipGovernment - Hospital District or Authority

CMS Certification Number500007

Location1211 24th StreetAnacortes, WA 98221 · Skagit County

Emergency services Birthing friendly

Providence Regional Medical Center Everett

Acute Care Hospitals · Everett, WA

3/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number500014

Location1321 Colby AvenueEverett, WA 98201 · Snohomish County

Emergency services Birthing friendly

Swedish Edmonds Hospital

Acute Care Hospitals · Edmonds, WA

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number500026

Location21601 76th Avenue WestEdmonds, WA 98026 · Snohomish County

Emergency services Birthing friendly

Swedish Medical Center

Acute Care Hospitals · Seattle, WA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number500027

Location747 BroadwaySeattle, WA 98122 · King County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98208 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

$130.99 typical visit price

range $57.27 – $172.80

Typical copayment $32.74 (range $14.31 – $43.20)

Most-billed visit code 99204

Established Patient

$100.78 typical visit price

range $18.56 – $141.11

Typical copayment $25.19 (range $4.64 – $35.27)

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 23

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

17 suppliers138 claims138 services$33.93 avg. paid by Medicare

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

DME-Other DME · category DE001N

11 suppliers80 claims80 services$80.16 avg. paid by Medicare

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

DME-Other DME · category DE001N

11 suppliers81 claims219 services$29.24 avg. paid by Medicare

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

DME-Other DME · category DE001N

11 suppliers58 claims334 services$17.27 avg. paid by Medicare

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

DME-Other DME · category DE001N

12 suppliers56 claims299 services$13.70 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

15 suppliers132 claims132 services$51.79 avg. paid by Medicare

Headgear used with positive airway pressure device A7035

DME-Other DME · category DE001N

17 suppliers133 claims133 services$16.46 avg. paid by Medicare

Chinstrap used with positive airway pressure device A7036

DME-Other DME · category DE001N

6 suppliers13 claims13 services$8.94 avg. paid by Medicare

Tubing used with positive airway pressure device A7037

DME-Other DME · category DE001N

7 suppliers41 claims41 services$12.55 avg. paid by Medicare

Filter, disposable, used with positive airway pressure device A7038

DME-Other DME · category DE001N

14 suppliers193 claims1,135 services$2.10 avg. paid by Medicare

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

DME-Other DME · category DE001N

11 suppliers62 claims62 services$5.51 avg. paid by Medicare

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

DME-Other DME · category DE001N

12 suppliers75 claims75 services$12.27 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

1 supplier113 claims113 services$16.12 avg. paid by Medicare

Portable oxygen contents, gaseous, 1 month's supply = 1 unit E0443

DME-Oxygen and Supplies · category DC000N

1 supplier13 claims13 services$44.04 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

3 suppliers21 claims21 services$71.61 avg. paid by Medicare

Nebulizer, with compressor E0570

DME-Other DME · category DE000N

3 suppliers38 claims40 services$4.26 avg. paid by Medicare

Continuous positive airway pressure (cpap) device E0601

DME-Other DME · category DE001N

5 suppliers111 claims111 services$32.11 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

6 suppliers304 claims304 services$73.92 avg. paid by Medicare

Portable oxygen concentrator, rental E1392

DME-Oxygen and Supplies · category DC002N

6 suppliers110 claims110 services$32.38 avg. paid by Medicare

Arformoterol, inhalation solution, fda approved final product, non-compounded, administered through dme, unit dose form, 15 micrograms J7605

DME-Drugs Administered Through DME · category DG006N

1 supplier14 claims840 services$4.35 avg. paid by Medicare

Albuterol, up to 2.5 mg and ipratropium bromide, up to 0.5 mg, fda-approved final product, non-compounded, administered through dme J7620

DME-Drugs Administered Through DME · category DG006N

1 supplier28 claims2,340 services$0.09 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 suppliers33 claims33 services$31.30 avg. paid by Medicare

Pharmacy dispensing fee for inhalation drug(s); per 30 days Q0513

DME-Other DME · category DE000N

1 supplier42 claims42 services$24.20 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 3

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

ANITA E TSEN MD

Internal Medicine (Critical Care Medicine)

12728 19TH AVE. SE, SUITE 200
EVERETT, WA 98208

Snohomish County (425) 252-1116

DAVID A RUSSIAN MD

Internal Medicine (Pulmonary Disease)

12728 19TH AVE. SE, SUITE 200
EVERETT, WA 98208

Snohomish County (425) 252-1116

JULIE WOOD-MCCLURE MD

Internal Medicine (Pulmonary Disease)

12728 19TH AVE. SE, SUITE 200
EVERETT, WA 98208

Snohomish County (425) 252-1116

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 Tomasz Ziedalski's NPI number?

The NPI number for Tomasz Ziedalski is 1265473854. It was assigned to this individual provider in the NPPES registry on June 8, 2006.

Where is Tomasz Ziedalski located?

Tomasz Ziedalski practices at 12728 19th Ave. SE Suite 200, Everett, WA 98208. The listed phone number is (425) 252-1116.

What is Tomasz Ziedalski's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.

Is Tomasz Ziedalski enrolled in Medicare?

Yes. Tomasz Ziedalski 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 Tomasz Ziedalski's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Tomasz Ziedalski reassigns Medicare benefits to 3 organizations: Western Washington Medical Group, Inc Ps (Everett, WA), Public Hospital Dist No 1 Skagit (Granite Falls, WA) and Public Hospital District No 2 Skagit County Washington (Anacortes, WA). 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 Tomasz Ziedalski's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Tomasz Ziedalski accept?

Health plans from Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Tomasz Ziedalski 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 Tomasz Ziedalski affiliated with any hospitals?

According to CMS data, Tomasz Ziedalski is affiliated with Skagit Valley Hospital, Island Hospital, Providence Regional Medical Center Everett, Swedish Edmonds Hospital and Swedish Medical Center.

When was this NPI record last updated?

The NPPES record for Tomasz Ziedalski was last updated on September 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 59 days 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.