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

DR. JOSEPH MICHAEL SLIEPKA III MD
NPI 1093342248
Orthopaedic Surgery - Pediatric Orthopaedic Surgery in Seattle, WA

Q: What is Joseph Sliepka's NPI number?

The NPI number for Joseph Sliepka is 1093342248. It was assigned to this individual provider in the NPPES registry on March 26, 2020.

Q: What is Joseph Sliepka's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Pediatric Orthopaedic Surgery, with taxonomy code 207XP3100X.

Q: When was this NPI record last updated?

The NPPES record for Joseph Sliepka was last updated on June 18, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 49 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 26, 2020PECOS Enrolled

4800 SAND POINT WAY NE, SEATTLE, WA 98105(206) 987-2000 Get Directions Write a Review

NPPES record last updated: June 18, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Dr. Joseph Michael Sliepka Iii Md NPPES

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

DR. JOSEPH MICHAEL SLIEPKA III MD (NPI 1093342248) is an individual pediatric orthopaedic surgery provider in Seattle, Washington, licensed in Washington (MD.70018281) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1093342248

Entity TypeIndividualMale

Primary Taxonomy207XP3100X

Provider Legal NameDR. JOSEPH MICHAEL SLIEPKA IIICredential: MD

Location Address4800 SAND POINT WAY NESeattle, WA 98105-3901

Mailing Address4800 Sand Point Way NeSeattle, WA 98105-3901

Phone(206) 987-2000

Sole ProprietorNo

Enumeration DateMarch 26, 2020

Last NPPES UpdateJune 18, 2026

NPPES CertifiedJune 18, 2026

✔ NPI 1093342248 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOrthopaedic Surgery · Pediatric Orthopaedic SurgeryAllopathic & Osteopathic Physicians

Taxonomy Code207XP3100X

License✔ Licensed in WA · MD.70018281

Definition

An orthopedic surgeon who has additional training and experience in diagnosing, treating and managing musculoskeletal problems in infants, children and adolescents. These may include limb and spine deformities (such as club foot, scoliosis); gait abnormalities (limping); bone and joint infections; broken bones.

Also ListedOrthopaedic Surgery · Sports MedicineTaxonomy 207XX0005X · License MD.70018281 (WA)

4800 SAND POINT WAY NE, Seattle, WA 98105

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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)

Dr. Joseph Michael Sliepka Iii Md 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.

NALINI MALARKKAN MD

Anesthesiology

4800 SAND POINT WAY NE
SEATTLE, WA 98105

King County (206) 987-2728

MS. LINDA E EBLEN MA

Speech-Language Pathologist

4800 SAND POINT WAY NE, MAIL STOP W-6839
SEATTLE, WA 98105

King County (206) 987-6164

DR. JAMES TOLIVER BENNETT JR. M.D., PH.D.

Medical Genetics (Clinical Molecular Genetics)

4800 SAND POINT WAY NE, GENETIC MEDICINE
SEATTLE, WA 98105

King County (206) 987-2056

DR. LESLIE ANN DERVAN MD

Pediatrics (Pediatric Critical Care Medicine)

4800 SAND POINT WAY NE, MB.10.620
SEATTLE, WA 98105

King County (206) 987-0293

DR. INDI TREHAN MD

Pediatrics (Pediatric Infectious Diseases)

4800 SAND POINT WAY NE
SEATTLE, WA 98105

King County (206) 987-2000

MS. JENNIFER PATANO CNP

Nurse Practitioner (Pediatrics)

4800 SAND POINT WAY NE, MS O.7.720
SEATTLE, WA 98105

King County (206) 987-8949

MRS. SUSAN L HOLTZCLAW ARNP

Nurse Practitioner (Family)

4800 SAND POINT WAY NE, MAILSTOP T-2108
SEATTLE, WA 98105

King County (206) 987-5691

SHENG ZHOU MD

Otolaryngology (Pediatric Otolaryngology)

4800 SAND POINT WAY NE
SEATTLE, WA 98105

King County (206) 987-2105

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 Joseph Sliepka's NPI number?

The NPI number for Joseph Sliepka is 1093342248. It was assigned to this individual provider in the NPPES registry on March 26, 2020.

Where is Joseph Sliepka located?

Joseph Sliepka practices at 4800 Sand Point Way NE, Seattle, WA 98105. The listed phone number is (206) 987-2000.

What is Joseph Sliepka's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Pediatric Orthopaedic Surgery, with taxonomy code 207XP3100X.

Is Joseph Sliepka enrolled in Medicare?

Yes. Joseph Sliepka is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Joseph Sliepka was last updated on June 18, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 49 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.