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

JENNIFER LYNN MARSHALEK D.O.
NPI 1619289618
Obstetrics & Gynecology in Williamsport, PA

Q: What is Jennifer Marshalek's NPI number?

The NPI number for Jennifer Marshalek is 1619289618. It was assigned to this individual provider in the NPPES registry on July 7, 2010.

Q: What is Jennifer Marshalek's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Active since July 07, 2010PECOS Enrolled

740 HIGH ST STE 1004, WILLIAMSPORT, PA 17701(570) 321-3300 Get Directions Write a Review

NPPES record last updated: July 23, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 23, 2026, Mar 23, 2023, Dec 11, 2018 (3 updates tracked since 2018).

On this page

About Jennifer Lynn Marshalek D.o. NPPES

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

JENNIFER LYNN MARSHALEK D.O. (NPI 1619289618) is an individual obstetrics & gynecology provider in Williamsport, Pennsylvania, licensed in Pennsylvania (OS016850) and active in the NPI registry since July 2010. She is enrolled in Medicare PECOS, is affiliated with Upmc Williamsport, and is a graduate of At Still University Of Health Sciences, College Of Osteo Med, Kirksville (2010).

NPPES Registry Identity

NPI1619289618

Entity TypeIndividualFemale

Primary Taxonomy207V00000X

Provider Legal NameJENNIFER LYNN MARSHALEKCredential: D.O.

Location Address740 HIGH ST STE 1004Williamsport, PA 17701-3102

Mailing Address1201 Grampian BlvdWilliamsport, PA 17701-1900

Phone(570) 321-3300

Sole ProprietorNo

Medical School CMSAt Still University Of Health Sciences, College Of Osteo Med, KirksvilleGraduated 2010

Enumeration DateJuly 7, 2010

Last NPPES UpdateJuly 23, 20263 updates tracked since enumeration

NPPES CertifiedMarch 23, 2023

✔ NPI 1619289618 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians

Taxonomy Code207V00000X

License✔ Licensed in PA · OS016850

Definition

An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.

740 HIGH ST STE 1004, 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

Jennifer Lynn Marshalek D.o. 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 ID4183868292

PECOS Enrollment IDI20141001001534

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

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.

25 services17 patients

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

$126.34 typical visit price

range $54.64 – $166.87

Typical copayment $31.58 (range $13.66 – $41.71)

Most-billed visit code 99204

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 13

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

ANGELA LYNN SMITH CNM

Advanced Practice Midwife

740 HIGH ST STE 1004
WILLIAMSPORT, PA 17701

Lycoming County (570) 321-3300

AUTUMN HILL CNM

Advanced Practice Midwife

740 HIGH ST STE 1004, SUITE 1004
WILLIAMSPORT, PA 17701

Lycoming County (570) 321-3300

KATERINA MOORE CNM

Advanced Practice Midwife

740 HIGH ST STE 1004
WILLIAMSPORT, PA 17701

Lycoming County (570) 321-3300

CASSANDRA ANN BRODGINSKI CNM

Advanced Practice Midwife

740 HIGH ST STE 1004
WILLIAMSPORT, PA 17701

Lycoming County (570) 321-3300

NATALIE KAY NYMAN PA-C

Physician Assistant

740 HIGH ST STE 1004
WILLIAMSPORT, PA 17701

Lycoming County (570) 321-3300

HEATHER NICOLE BROOKS CNM

Advanced Practice Midwife

740 HIGH ST STE 1004
WILLIAMSPORT, PA 17701

Lycoming County (570) 321-3300

MORGAN MANGLAVITI PA-C

Physician Assistant

740 HIGH ST STE 1004
WILLIAMSPORT, PA 17701

Lycoming County (570) 321-3300

SARAH ELIZABETH KOZLOWSKI PA-C

Physician Assistant

740 HIGH ST STE 1004
WILLIAMSPORT, PA 17701

Lycoming County (570) 321-3300

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 Jennifer Marshalek's NPI number?

The NPI number for Jennifer Marshalek is 1619289618. It was assigned to this individual provider in the NPPES registry on July 7, 2010.

Where is Jennifer Marshalek located?

Jennifer Marshalek practices at 740 High St Ste 1004, Williamsport, PA 17701. The listed phone number is (570) 321-3300.

What is Jennifer Marshalek's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Jennifer Marshalek enrolled in Medicare?

Yes. Jennifer Marshalek 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 Jennifer Marshalek affiliated with any hospitals?

According to CMS data, Jennifer Marshalek is affiliated with Upmc Williamsport.

When was this NPI record last updated?

The NPPES record for Jennifer Marshalek was last updated on July 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.