1. Home
  2. Directory
  3. Pennsylvania
  4. Williamsport
  5. Physician Assistant
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

LILY SUMMERS TRASIEWICZ PA
NPI 1083431456
Physician Assistant in Williamsport, PA

Active since September 25, 2024PECOS EnrolledAccepts Medicare Assignment
1100 GRAMPIAN BLVD, WILLIAMSPORT, PA 17701(570) 320-7657 Get Directions Write a Review

NPPES record last updated: July 9, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 9, 2026, Nov 20, 2024, Sep 25, 2024 (3 updates tracked since 2024).

About Lily Summers Trasiewicz Pa NPPES

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

LILY SUMMERS TRASIEWICZ PA (NPI 1083431456) is an individual physician assistant in Williamsport, Pennsylvania and active in the NPI registry since September 2024. She is enrolled in Medicare PECOS, is affiliated with Upmc Williamsport, and is a graduate of Other (2024).

NPPES Registry Identity

NPI1083431456
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameLILY SUMMERS TRASIEWICZCredential: PA
Location Address1100 GRAMPIAN BLVDWilliamsport, PA 17701-1907
Mailing Address700 High StWilliamsport, PA 17701-3100 · (570) 321-1000
Phone(570) 320-7657
Sole ProprietorNo
Medical School CMSOtherGraduated 2024
Enumeration DateSeptember 25, 2024
Last NPPES UpdateJuly 9, 20263 updates tracked since enumeration
NPPES CertifiedJuly 9, 2026
✔ NPI 1083431456 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
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.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
1100 GRAMPIAN BLVD, Williamsport, PA 17701
Open in Google Maps ↗

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

Lily Summers Trasiewicz Pa 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 ID1052845658
PECOS Enrollment IDI20241105001419
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.

Hospital Affiliations CMS Care Compare

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

Upmc Williamsport

Acute Care Hospitals · Williamsport, PA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390045
Location700 High StreetWilliamsport, PA 17701 · Lycoming County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 17701 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 20

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

VERONICA MOON
Registered Nurse
1100 GRAMPIAN BLVD
WILLIAMSPORT, PA 17701
Lycoming County (570) 320-7690
MS. SARA JO RITCHEY PA-C
Physician Assistant
1100 GRAMPIAN BLVD
WILLIAMSPORT, PA 17701
Lycoming County (570) 320-7680
MRS. MINDI NICHOLS CRNP
Nurse Practitioner
1100 GRAMPIAN BLVD
WILLIAMSPORT, PA 17701
Lycoming County (570) 320-7691
HOME NURSING AGENCY & VISITING NURSE ASSOCIATION
Home Health
1100 GRAMPIAN BLVD
WILLIAMSPORT, PA 17701
Lycoming County (570) 320-7690
ROHIT G SINGH MD
Pain Medicine (Pain Medicine)
1100 GRAMPIAN BLVD
WILLIAMSPORT, PA 17701
Lycoming County (570) 326-8457
DIVINE PROVIDENCE HOSPITAL OF THE SISTERS OF CHRISTIAN CHARITY
Registered Nurse
1100 GRAMPIAN BLVD, 4 SOUTH
WILLIAMSPORT, PA 17701
Lycoming County (570) 320-7690
ASHLEY LEBERFINGER M.D.
Plastic Surgery
1100 GRAMPIAN BLVD
WILLIAMSPORT, PA 17701
Lycoming County (570) 326-8005
KARL AHLSWEDE MD
Surgery (Hospice and Palliative Medicine)
1100 GRAMPIAN BLVD
WILLIAMSPORT, PA 17701
Lycoming County (570) 320-7680

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 Lily Summers Trasiewicz's NPI number?

The NPI number for Lily Summers Trasiewicz is 1083431456. It was assigned to this individual provider in the NPPES registry on September 25, 2024.

Where is Lily Summers Trasiewicz located?

Lily Summers Trasiewicz practices at 1100 Grampian Blvd, Williamsport, PA 17701. The listed phone number is (570) 320-7657.

What is Lily Summers Trasiewicz's specialty?

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

Is Lily Summers Trasiewicz enrolled in Medicare?

Yes. Lily Summers Trasiewicz 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.

Is Lily Summers Trasiewicz affiliated with any hospitals?

According to CMS data, Lily Summers Trasiewicz is affiliated with Upmc Williamsport.

When was this NPI record last updated?

The NPPES record for Lily Summers Trasiewicz was last updated on July 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 29 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.