KARA E. STEFANIAK PA
NPI 1801454996
Physician Assistant in Boston, MA

Active since June 03, 2019PECOS Enrolled
97.58/100
CMS Quality Rating
300 LONGWOOD AVE, BOSTON, MA 02115(617) 355-6000 Get Directions Write a Review

NPPES record last updated: May 30, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: May 30, 2025, Jul 24, 2020, Oct 8, 2019 and 1 more (4 updates tracked since 2019).

About Kara E. Stefaniak Pa NPPES

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

KARA E. STEFANIAK PA (NPI 1801454996) is an individual physician assistant in Boston, Massachusetts, licensed in Massachusetts (PA100369) and active in the NPI registry since June 2019. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1801454996
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameKARA E. STEFANIAKCredential: PA
Location Address300 LONGWOOD AVEBoston, MA 02115-5724
Mailing Address300 Longwood AveBoston, MA 02115-5724 · (617) 355-6000
Sole ProprietorNo
Enumeration DateJune 3, 2019
Last NPPES UpdateMay 30, 20254 updates tracked since enumeration
NPPES CertifiedMay 30, 2025
NPI 1801454996 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
Licenses Licensed in MA · PA100369 Licensed in CO · PA.0005860
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 ListedPhysician Assistant · MedicalTaxonomy 363AM0700X · License 5860 (CO)
300 LONGWOOD AVE, Boston, MA 02115

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Enrolled in Medicare (PECOS)

Kara E. Stefaniak Pa is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02115 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
$97.64 typical visit price
range $63.72 – $189.86
Typical copayment $24.41 (range $15.93 – $47.46)
Most-billed visit code 99203
Established Patient
$78.84 typical visit price
range $21.07 – $155.29
Typical copayment $19.71 (range $5.26 – $38.82)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

97.58/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality86.53
Promoting Interoperability100
Improvement Activities40

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.

Social Worker (Clinical)
300 LONGWOOD AVE
BOSTON, MA 02115
Nurse Practitioner (Psychiatric/Mental Health)
300 LONGWOOD AVE
BOSTON, MA 02115
Anesthesiology (Pediatric Anesthesiology)
300 LONGWOOD AVE
BOSTON, MA 02115
Physical Therapist
300 LONGWOOD AVE
BOSTON, MA 02115
Social Worker (Clinical)
300 LONGWOOD AVE, CHILDREN'S HOSPITAL BOSTON
BOSTON, MA 02115
Pediatrics
300 LONGWOOD AVE, BADER 203
BOSTON, MA 02115
Nurse Practitioner (Pediatrics)
300 LONGWOOD AVE, HUNNEWELL BUILDING 322
BOSTON, MA 02115
Pediatrics (Neonatal-Perinatal Medicine)
300 LONGWOOD AVE
BOSTON, MA 02115

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 Kara Stefaniak's NPI number?

The NPI number for Kara Stefaniak is 1801454996. It was assigned to this individual provider in the NPPES registry on June 3, 2019.

Where is Kara Stefaniak located?

Kara Stefaniak practices at 300 Longwood Ave, Boston, MA 02115. The listed phone number is (617) 355-6000.

What is Kara Stefaniak's specialty?

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

Is Kara Stefaniak enrolled in Medicare?

Yes. Kara Stefaniak is registered in the Medicare PECOS enrollment system.

What insurance does Kara Stefaniak accept?

Health plans from Anthem Blue Cross and Blue Shield and Medica list Kara Stefaniak 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.

When was this NPI record last updated?

The NPPES record for Kara Stefaniak was last updated on May 30, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.