Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Jeff Sienkiewicz, PA-C

Individual provider Physician Assistant · NPI 1487326765

Jeff Sienkiewicz, PA-C is a Physician Assistant in Puyallup, Washington. Qualified in 2022, 4 years ago. Practices with Multicare Health System, a 2,302-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Massachusetts and Washington.

Years since qualifying
4
Licensed in
MA, WA
In the registry since
2021
Specialties on file
2
What do these letters mean?
PA-C — Physician Assistant, Certified
A physician assistant who holds current national certification.

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Practice location Address checks out

4505 S Meridian # 101
Puyallup, WA 98373-5002
Phone: (253) 697-5770
Fax: (253) 864-4014
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 65 Clarendon St Apt 6, Boston, MA 02116-6040 — (203) 727-7638

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence PA61410321 (WA)
Physician Assistant Taxonomy 363A00000X · Licence PA8994 (MA)

Record details

NPI number1487326765
Entity typeIndividual (Type 1)
GenderMale
Credentials PA-C
Sole proprietorYes
NPI enumeratedOctober 4, 2021
Last updated in NPPESAugust 19, 2025
Certification dateAugust 19, 2025
Mailing addressPo Box 5299, Ms: 820-5-Pco, Tacoma, WA 98415-0299

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2022 (4 years in practice)
Group practice Multicare Health System — 2302 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Other providers in Puyallup