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DR. JENNIFER LYNN STEPHENS DO
NPI 1083731889
Internal Medicine in Allentown, PA

Active since March 25, 2007PECOS EnrolledAccepts Medicare Assignment
3080 HAMILTON BLVD, SUITE 350, ALLENTOWN, PA 18103(484) 661-4650 Get Directions Write a Review

NPPES record last updated: June 23, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jun 23, 2025, Nov 18, 2015 (2 updates tracked since 2015).

About Dr. Jennifer Lynn Stephens Do NPPES

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

DR. JENNIFER LYNN STEPHENS DO (NPI 1083731889) is an individual internal medicine provider in Allentown, Pennsylvania, licensed in Pennsylvania (OS013074) and active in the NPI registry since March 2007. She is enrolled in Medicare PECOS, is affiliated with Lehigh Valley Hospital, and maintains a secondary practice location in Allentown.

NPPES Registry Identity

NPI1083731889
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. JENNIFER LYNN STEPHENSCredential: DO
Location Address3080 HAMILTON BLVD, SUITE 350Allentown, PA 18103-3694
Mailing AddressPo Box 783311Philadelphia, PA 19178-3311
Phone(484) 661-4650
Sole ProprietorNo
Medical School CMSPhiladelphia College Of Osteopathic MedicineGraduated 2003
Enumeration DateMarch 25, 2007
Last NPPES UpdateJune 23, 20252 updates tracked since enumeration
NPPES CertifiedJune 23, 2025
✔ NPI 1083731889 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in PA · OS013074
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
3080 HAMILTON BLVD, Allentown, PA 18103
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Other Names 1

Former Name (1)Jennifer Lynn Mariotti Do

Secondary Practice Location 1

Location 11627 Chew St Ste 101Allentown, PA 18102-3648 · Phone (610) 969-4370

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Jennifer Lynn Stephens Do 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 ID3971601253
PECOS Enrollment IDI20070611000282
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.

Medicare Billing Reassignments

3

Medicare enrollment records show Jennifer Stephens reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Lehigh Valley Physician Group
Same address
Internal Medicine
3080 HAMILTON BLVD, SUITE 350
Allentown, PA 18103
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 2,895 clinicians in this Medicare group
NPI 1114001401 (484) 661-4650
Valley Health Partners Community Health Center
1.9 mi
Federally Qualified Health Center (FQHC)
400 N 17TH ST STE 300
Allentown, PA 18104
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 296 clinicians in this Medicare group
NPI 1912532888 (610) 969-4300
Jefferson University Physicians
48 mi
General Practice
33 S. 9TH STREET
Philadelphia, PA 19107
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 1,739 clinicians in this Medicare group
NPI 1326093675 (215) 955-0000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 6

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 moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
69 services44 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
61 services61 patients
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.
19 services18 patients
Hemoglobin a1c level 83036
Hemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.
16 services16 patients
Annual depression screening, 5 to 15 minutes G0444
An annual depression screening is a short, routine evaluation to check for signs of depression. It involves answering a series of questions about your feelings, thoughts, and behaviors. The process takes about 15 minutes and helps detect depression early for better management.
14 services14 patients
Administration of influenza virus vaccine G0008
The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.
11 services11 patients

Hospital Affiliations CMS Care Compare

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

Lehigh Valley Hospital

Acute Care Hospitals · Allentown, PA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390133
Location1200 South Cedar Crest BoulevardAllentown, PA 18103 · Lehigh County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 18103 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
$96.82 typical visit price
range $17.33 – $135.84
Typical copayment $24.20 (range $4.33 – $33.96)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Elevating leg rests, pair (for use with capped rental wheelchair base) K0195
DME-Wheelchairs · category DD021N
1 supplier12 claims12 services$12.43 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

YEHIA MISHRIKI MD
Internal Medicine
3080 HAMILTON BLVD, SUITE 350
ALLENTOWN, PA 18103
Lehigh County (484) 661-4650
CHERYL BLOOMFIELD MD
Internal Medicine
3080 HAMILTON BLVD, SUITE 350
ALLENTOWN, PA 18103
Lehigh County (484) 661-4650
MARIE O'BRIEN D.O.
Internal Medicine (Rheumatology)
3080 HAMILTON BLVD, SUITE 300
ALLENTOWN, PA 18103
Lehigh County (610) 776-5038
LEHIGH VALLEY PHYSICIAN GROUP
Internal Medicine
3080 HAMILTON BLVD, SUITE 350
ALLENTOWN, PA 18103
Lehigh County (484) 661-4650
CARLA KALYMUN
Nurse Practitioner (Acute Care)
3080 HAMILTON BLVD, STE 200
ALLENTOWN, PA 18103
Lehigh County (610) 776-1603
LEHIGH VALLEY HOSPITAL
Clinic/Center
3080 HAMILTON BLVD
ALLENTOWN, PA 18103
Lehigh County (610) 402-8000
CAROLYN CASEY D.O.
Internal Medicine (Rheumatology)
3080 HAMILTON BLVD, SUITE 300
ALLENTOWN, PA 18103
Lehigh County (610) 776-5038
LEI LI M.D.
Hospitalist
3080 HAMILTON BLVD, SUITE 350
ALLENTOWN, PA 18103
Lehigh County (484) 661-4650

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 Stephens's NPI number?

The NPI number for Jennifer Stephens is 1083731889. It was assigned to this individual provider in the NPPES registry on March 25, 2007. The provider is also known as Jennifer Lynn Mariotti Do.

Where is Jennifer Stephens located?

Jennifer Stephens practices at 3080 Hamilton Blvd Suite 350, Allentown, PA 18103. The listed phone number is (484) 661-4650.

What is Jennifer Stephens's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Jennifer Stephens enrolled in Medicare?

Yes. Jennifer Stephens 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.

Which organizations bill Medicare for Jennifer Stephens's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Jennifer Stephens reassigns Medicare benefits to 3 organizations: Lehigh Valley Physician Group (Allentown, PA), Valley Health Partners Community Health Center (Allentown, PA) and Jefferson University Physicians (Philadelphia, PA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Jennifer Stephens's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Jennifer Stephens affiliated with any hospitals?

According to CMS data, Jennifer Stephens is affiliated with Lehigh Valley Hospital.

When was this NPI record last updated?

The NPPES record for Jennifer Stephens was last updated on June 23, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.