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

MACIEJ WACLAW CZARNECKI MD PHD
NPI 1104402957
Anesthesiology - Pain Medicine in Seattle, WA

Q: What is Maciej Czarnecki's NPI number?

The NPI number for Maciej Czarnecki is 1104402957. It was assigned to this individual provider in the NPPES registry on March 22, 2021.

Q: What is Maciej Czarnecki's specialty?

The primary specialty registered for this NPI is Anesthesiology, specializing in Pain Medicine, with taxonomy code 207LP2900X.

Q: When was this NPI record last updated?

The NPPES record for Maciej Czarnecki was last updated on July 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 38 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 March 22, 2021PECOS Enrolled

1959 NE PACIFIC ST, SEATTLE, WA 98195(206) 543-2474 Get Directions Write a Review

NPPES record last updated: July 8, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 8, 2026, Mar 22, 2021 (2 updates tracked since 2021).

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About Maciej Waclaw Czarnecki Md Phd NPPES

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

MACIEJ WACLAW CZARNECKI MD PHD (NPI 1104402957) is an individual pain medicine provider in Seattle, Washington, licensed in Washington (MD.MD.70128067) and active in the NPI registry since March 2021. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1104402957

Entity TypeIndividualMale

Primary Taxonomy207LP2900X

Provider Legal NameMACIEJ WACLAW CZARNECKICredential: MD PHD

Location Address1959 NE PACIFIC STSeattle, WA 98195-0001

Mailing AddressPo Box 50095Seattle, WA 98145-5095

Phone(206) 543-2474

Sole ProprietorNo

Enumeration DateMarch 22, 2021

Last NPPES UpdateJuly 8, 20262 updates tracked since enumeration

NPPES CertifiedJuly 8, 2026

✔ NPI 1104402957 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAnesthesiology · Pain MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207LP2900X

License✔ Licensed in WA · MD.MD.70128067

Definition

An anesthesiologist who provides a high level of care, either as a primary physician or consultant, for patients experiencing problems with acute, chronic and/or cancer pain in both hospital and ambulatory settings. Patient care needs are also coordinated with other specialists.

Also ListedAnesthesiologyTaxonomy 207L00000X · License MD.MD.70128067 (WA)

1959 NE PACIFIC ST, Seattle, WA 98195

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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Maciej Waclaw Czarnecki Md Phd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

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.

LEONIE A NEVILLE PHARMD

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

1959 NE PACIFIC ST
SEATTLE, WA 98195

King County (206) 598-4874

ALISA BETH KACHIKIS M.D.

Obstetrics & Gynecology (Maternal & Fetal Medicine)

1959 NE PACIFIC ST, 3RD FLOOR SW 350
SEATTLE, WA 98195

King County (206) 598-4070

MS. MARY PATRICIA DODGE MS, OTR/L

Occupational Therapist

1959 NE PACIFIC ST, MAILBOX 356490
SEATTLE, WA 98195

King County (206) 598-4830

RIKA SHIRAKAWA M.D.

Ophthalmology

1959 NE PACIFIC ST, BOX 365485
SEATTLE, WA 98195

King County (206) 558-9616

VEDA TSOI M.D.

Anesthesiology

1959 NE PACIFIC ST
SEATTLE, WA 98195

King County (801) 556-7628

KATHRYN TAMURA PHARM.D.

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

1959 NE PACIFIC ST, BOX 356015
SEATTLE, WA 98195

King County (206) 598-6060

DR. MARK ROBERT, MICHAEL KILGORE M.D.

Pathology (Anatomic Pathology & Clinical Pathology)

1959 NE PACIFIC ST, BOX 356100
SEATTLE, WA 98195

King County (206) 598-1821

DR. SERKAN MEHMET SAHIN M.D.

Hospitalist

1959 NE PACIFIC ST
SEATTLE, WA 98195

King County (206) 543-6420

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 Maciej Czarnecki's NPI number?

The NPI number for Maciej Czarnecki is 1104402957. It was assigned to this individual provider in the NPPES registry on March 22, 2021.

Where is Maciej Czarnecki located?

Maciej Czarnecki practices at 1959 NE Pacific St, Seattle, WA 98195. The listed phone number is (206) 543-2474.

What is Maciej Czarnecki's specialty?

The primary specialty registered for this NPI is Anesthesiology, specializing in Pain Medicine, with taxonomy code 207LP2900X.

Is Maciej Czarnecki enrolled in Medicare?

Yes. Maciej Czarnecki is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Maciej Czarnecki was last updated on July 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 38 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.