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JEFF SIENKIEWICZ PA-C
NPI 1487326765
Physician Assistant in Puyallup, WA

Active since October 04, 2021PECOS EnrolledAccepts Medicare Assignment
4505 S MERIDIAN # 101, PUYALLUP, WA 98373(253) 697-5770(253) 864-4014 Get Directions Write a Review

NPPES record last updated: August 19, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Sep 21, 2022, Oct 4, 2021 (2 updates tracked since 2021).

About Jeff Sienkiewicz Pa-c NPPES

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

JEFF SIENKIEWICZ PA-C (NPI 1487326765) is an individual physician assistant in Puyallup, Washington, licensed in Washington (PA61410321) and active in the NPI registry since October 2021. He is enrolled in Medicare PECOS, is affiliated with Deaconess Medical Center, and maintains a secondary practice location in Boston.

NPPES Registry Identity

NPI1487326765
Entity TypeIndividualMale
Primary Taxonomy363A00000X
Provider Legal NameJEFF SIENKIEWICZCredential: PA-C
Location Address4505 S MERIDIAN # 101Puyallup, WA 98373-5002
Mailing AddressPo Box 5299, Ms: 820-5-pcoTacoma, WA 98415-0299
Phone(253) 697-5770
Fax(253) 864-4014
Sole ProprietorYes
Medical School CMSOtherGraduated 2022
Enumeration DateOctober 4, 2021
Last NPPES UpdateAugust 19, 20252 updates tracked since enumeration
NPPES CertifiedAugust 19, 2025
✔ NPI 1487326765 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
Licenses✔ Licensed in WA · PA61410321✔ Licensed in MA · PA8994
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
4505 S MERIDIAN # 101, Puyallup, WA 98373
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Secondary Practice Location 1

Location 165 Clarendon St Apt 6Boston, MA 02116-6040 · Phone (203) 727-7638

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Premera Blue Cross Blue Shield of Alaska.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Jeff Sienkiewicz Pa-c 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 ID8123496197
PECOS Enrollment IDI20240828004398
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.

Areas of Expertise CMS Part B claims 2

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 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.
32 services32 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
11 services11 patients

Hospital Affiliations CMS Care Compare

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

Deaconess Medical Center

Acute Care Hospitals · Spokane, WA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number500044
LocationW 800 Fifth AvenueSpokane, WA 99210 · Spokane County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98373 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
$88.29 typical visit price
range $57.27 – $172.80
Typical copayment $22.07 (range $14.31 – $43.20)
Most-billed visit code 99203
Established Patient
$71.29 typical visit price
range $18.56 – $141.11
Typical copayment $17.82 (range $4.64 – $35.27)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Jeff Sienkiewicz's NPI number?

The NPI number for Jeff Sienkiewicz is 1487326765. It was assigned to this individual provider in the NPPES registry on October 4, 2021.

Where is Jeff Sienkiewicz located?

Jeff Sienkiewicz practices at 4505 S Meridian # 101, Puyallup, WA 98373. The listed phone number is (253) 697-5770.

What is Jeff Sienkiewicz's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Jeff Sienkiewicz enrolled in Medicare?

Yes. Jeff Sienkiewicz 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.

What insurance does Jeff Sienkiewicz accept?

Health plans from Premera Blue Cross Blue Shield of Alaska list Jeff Sienkiewicz 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 Jeff Sienkiewicz affiliated with any hospitals?

According to CMS data, Jeff Sienkiewicz is affiliated with Deaconess Medical Center.

When was this NPI record last updated?

The NPPES record for Jeff Sienkiewicz was last updated on August 19, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months 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.