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MR. WILLIAM L. SISITKI JR. PA-C
NPI 1831147016
Physician Assistant in Lewisburg, PA

Active since May 04, 2006PECOS EnrolledAccepts Medicare Assignment
25 LYSTRA ROGERS DR, LEWISBURG, PA 17837(570) 523-3290 Get Directions Write a Review

NPPES record last updated: January 7, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jan 7, 2026, Nov 5, 2025, Jan 13, 2023 and 2 more (5 updates tracked since 2016).

About Mr. William L. Sisitki Jr. Pa-c NPPES

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

MR. WILLIAM L. SISITKI JR. PA-C (NPI 1831147016) is an individual physician assistant in Lewisburg, Pennsylvania, licensed in Pennsylvania (MA052141) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Evangelical Community Hospital, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1831147016
Entity TypeIndividualMale
Primary Taxonomy363A00000X
Provider Legal NameMR. WILLIAM L. SISITKI JR.Credential: PA-C
Location Address25 LYSTRA ROGERS DRLewisburg, PA 17837-8807
Mailing Address601 Memory LnYork, PA 17402-2231
Phone(570) 523-3290
Sole ProprietorNo
Medical School CMSOtherGraduated 2000
Enumeration DateMay 4, 2006
Last NPPES UpdateJanuary 7, 20265 updates tracked since enumeration
NPPES CertifiedJanuary 7, 2026
✔ NPI 1831147016 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License✔ Licensed in PA · MA052141
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.
25 LYSTRA ROGERS DR, Lewisburg, PA 17837
Open in Google Maps ↗

Secondary Practice Locations 2

Location 1457 River AveWilliamsport, PA 17701-3722 · Phone (570) 523-3290
Location 23 Hospital Dr Ste 100Lewisburg, PA 17837-9394 · Phone (570) 524-5056

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include AvMed.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

Mr. William L. Sisitki Jr. 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 ID3072530765
PECOS Enrollment IDI20051101000915
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 3

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.

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
44 services30 patients
Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 99221
Initial hospital inpatient care refers to the first day of your stay in the hospital. This service typically includes a 30-minute check-up with a healthcare professional. They'll assess your health, discuss your condition, and plan your treatment. It's part of ensuring you receive the best possible care.
29 services29 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.
16 services15 patients

Hospital Affiliations CMS Care Compare

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

Evangelical Community Hospital

Acute Care Hospitals · Lewisburg, PA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390013
LocationOne Hospital DriveLewisburg, PA 17837 · Union County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 17837 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
$84.88 typical visit price
range $54.64 – $166.87
Typical copayment $21.22 (range $13.66 – $41.71)
Most-billed visit code 99203
Established Patient
$68.36 typical visit price
range $17.33 – $135.84
Typical copayment $17.09 (range $4.33 – $33.96)
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.

Other Providers at the Same Location NPPES 10

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

KRYSTAL G DECKER AU.D.
Audiologist
25 LYSTRA ROGERS DR
LEWISBURG, PA 17837
Union County (570) 523-3290
DR. JAMES W MORGAN JR. MD
Surgery
25 LYSTRA ROGERS DR
LEWISBURG, PA 17837
Union County (570) 523-3290
MR. STEVEN ROBERT UHL PA-C
Physician Assistant (Surgical)
25 LYSTRA ROGERS DR
LEWISBURG, PA 17837
Union County (570) 523-3290
DR. JOSEPH M MUCCIOLO JR. MD
Surgery
25 LYSTRA ROGERS DR
LEWISBURG, PA 17837
Union County (570) 523-3290
CHELSEA LYNN SHAMBACH PA-C
Physician Assistant (Surgical)
25 LYSTRA ROGERS DR
LEWISBURG, PA 17837
Union County (570) 523-3290
DR. CHRISTOPHER J MOTTO MD
Surgery
25 LYSTRA ROGERS DR
LEWISBURG, PA 17837
Union County (570) 523-3290
GARRETT LAMAR BOYER PA-C
Physician Assistant (Surgical)
25 LYSTRA ROGERS DR
LEWISBURG, PA 17837
Union County (570) 523-3290
RACHEL LEE ROBENOLT PA-C
Physician Assistant (Surgical)
25 LYSTRA ROGERS DR
LEWISBURG, PA 17837
Union County (570) 523-3290

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 William Sisitki's NPI number?

The NPI number for William Sisitki is 1831147016. It was assigned to this individual provider in the NPPES registry on May 4, 2006.

Where is William Sisitki located?

William Sisitki practices at 25 Lystra Rogers Dr, Lewisburg, PA 17837. The listed phone number is (570) 523-3290.

What is William Sisitki's specialty?

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

Is William Sisitki enrolled in Medicare?

Yes. William Sisitki 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 William Sisitki accept?

Health plans from AvMed list William Sisitki 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 William Sisitki affiliated with any hospitals?

According to CMS data, William Sisitki is affiliated with Evangelical Community Hospital.

When was this NPI record last updated?

The NPPES record for William Sisitki was last updated on January 7, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.