DR. JENNIFER BROWN O'NEIL MD
NPI 1548427271
Pediatrics - Pediatric Cardiology in Fairfax, VA

Active since May 20, 2008PECOS Enrolled
81.28/100
CMS Quality Rating
8260 WILLOW OAKS CORPORATE DR STE 400, FAIRFAX, VA 22031(703) 573-0504(703) 573-4856 Get Directions Write a Review

NPPES record last updated: May 5, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: May 5, 2026, Apr 17, 2026, Apr 26, 2022 and 1 more (4 updates tracked since 2021).

  • Individual
  • Female
  • Pediatrics
  • Pediatric Cardiology
  • PECOS Enrolled

About JENNIFER O'NEIL

This page provides the complete NPI Profile along with additional information for Jennifer O'neil, a pediatrician established in Fairfax, Virginia with a medical specialization in Pediatrics, focusing in pediatric cardiology . The healthcare provider is registered in the NPI registry with number 1548427271 assigned on May 2008. The practitioner's primary taxonomy code is 2080P0202X with license number 0101250398 (VA). The provider is registered as an individual and her NPI record was last updated May 2026.

NPI
1548427271 Verify this NPI
Provider Name
DR. JENNIFER BROWN O'NEIL MD
Other Name
DR. JENNIFER LYNN BROWN MD
Other Name Type
Former Name (1)
Gender
Female
Entity Type
Individual
Location Address
8260 WILLOW OAKS CORPORATE DR STE 400 FAIRFAX, VA 22031
Location Phone
(703) 573-0504
Location Fax
(703) 573-4856
Mailing Address
PO BOX 37174 BALTIMORE, MD 21297
Mailing Phone
(571) 423-5699
Mailing Fax
(571) 423-5698
Is Sole Proprietor?
No
Enumeration Date
05-20-2008
Last Update Date
05-05-2026
Code Navigator

A pediatrician like Jennifer O'neil is a physician who has completed a pediatric residency and is board-certified or board-eligible in a pediatric specialty. Pediatric care providers are trained to care for newborns, infants, children and adolescents. A pediatrician could perform physical exams, manage vaccinations, monitor development milestones, diagnose illnesses, infections, injuries or other health problems, etc.

Location Map

Secondary Locations

  • 8260 Willow Oaks Corporate Dr Ste 625
    Fairfax, VA 22031
    (703) 573-0504

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Pediatrics Pediatric Cardiology

Taxonomy Code
2080P0202X
Type
Allopathic & Osteopathic Physicians
License No.
0101250398
License State
VA
Taxonomy Description
A pediatric cardiologist provides comprehensive care to patients with cardiovascular problems. This specialist is skilled in selecting, performing and evaluating the structural and functional assessment of the heart and blood vessels, and the clinical evaluation of cardiovascular disease.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1208000000XAllopathic & Osteopathic Physicians

Pediatrics

0101250398 (VA)

Medicare Participation & PECOS Enrollment Status

Jennifer O'neil is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Overall MIPS Quality Performance

The provider participated in CMS Quality Payment Program under the Merit-based Incentive Payment System (MIPS) and has an overall final score of 81.28, based on four performance areas: quality, improvement activities, promoting interoperability, and cost. The purpose of this information is to help people with Medicare make informed decisions and incentivize doctors and clinicians to maximize performance.

The Merit-based Incentive Payment System (MIPS) is a way providers could use to participate in CMS Quality Payment Program (QPP). The MIPS program affects clinician reimbursement for Part B covered professional services and also rewards them for improving the quality of patient care and outcomes.

  • Final Score: 81.28 out of 100

    The MIPS program evaluates providers across multiple categories with a specific weight for each category resulting a in a MIPS final score that ranges from 0 to 100 points. The MIPS Final Score determines whether providers receive a negative, neutral or positive MIPS payment adjustment.

  • Quality Score: 70.77

    The Quality category assesses providers performance on clinical practices and patient outcomes under the traditional MIPS program. The quality measures help identify the quality of healthcare processes, outcomes, and patient experiences. The Quality measure category comprises 40% of a provider's final MIPS score.

    There are six collection types for MIPS quality measures: Electronic Clinical Quality Measures (eCQMs), MIPS Clinical Quality Measures (CQMs), Qualified Clinical Data Registry (QCDR) Measures, Medicare Part B claims measures, CMS Web Interface measures and The Consumer Assessment of Healthcare Providers and Systems (CAHPS) for MIPS Survey.

  • Promoting Interoperability Score: 100

    The Interoperability category measures the providers ability to use technology to exchange and make use of healthcare information in a way that is less burdensome and improves outcomes. The Interoperability measure category comprises 25% of a provider's final MIPS score.

    The MIPS Interoperability measure focuses on the use of certified electronic health record technology (CEHRT) to improve patient access health information, the exchange of information between clinicians and pharmacies and the systematic collection, analysis, and interpretation of healthcare data.

  • Improvement Activities Score: 40

    The Improvement Activities performance category evaluates the providers participation in clinical activities that support the improvement of clinical practice, care delivery, and outcomes. Providers have the option to choose 2 to 4 activities from an inventory of over 100 improvement activities. Providers typically choose the activities that best fit their needs. The improvement activities measure category comprises 15% of a provider's final MIPS score.

    The Improvement measures aim to better patient engagement, patient safety and other areas of patient care. The Improvement Activities category comprises 15% of a provider's final MIPS score.

  • Cost Score: 66.84

    The Cost performance category assesses the amount and types of services provided and how clinicians coordinate care and seek improvement of health outcomes by ensuring patients receive the appropriate services.

    Although providers don't determine the price of healthcare services they are important in delivering high-quality care at a reasonable cost. The Cost measures category comprises 20% of a provider's final MIPS score.

Reviews for DR. JENNIFER BROWN O'NEIL MD

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Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Pediatrics (Pediatric Cardiology)
8260 WILLOW OAKS CORPORATE DR STE 400
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Pediatrics (Pediatric Cardiology)
8260 WILLOW OAKS CORPORATE DR STE 400
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Pediatrics (Pediatric Cardiology)
8260 WILLOW OAKS CORPORATE DR STE 400
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Pediatrics (Pediatric Cardiology)
8260 WILLOW OAKS CORPORATE DR STE 400
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Pediatrics (Pediatric Cardiology)
8260 WILLOW OAKS CORPORATE DR STE 400
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Pediatrics (Pediatric Cardiology)
8260 WILLOW OAKS CORPORATE DR STE 400
FAIRFAX, VA 22031
Pediatrics (Pediatric Cardiology)
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Surgery (Pediatric Surgery)
8260 WILLOW OAKS CORPORATE DR STE 400
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Surgery (Pediatric Surgery)
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Surgery (Pediatric Surgery)
8260 WILLOW OAKS CORPORATE DR STE 400
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Pediatrics (Pediatric Cardiology)
8260 WILLOW OAKS CORPORATE DR STE 400
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Nurse Practitioner
8260 WILLOW OAKS CORPORATE DR STE 400
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Pediatrics (Pediatric Cardiology)
8260 WILLOW OAKS CORPORATE DR STE 400
FAIRFAX, VA 22031
Pediatrics (Pediatric Cardiology)
8260 WILLOW OAKS CORPORATE DR STE 400
FAIRFAX, VA 22031
Pediatrics (Pediatric Cardiology)
8260 WILLOW OAKS CORPORATE DR STE 400
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Physician Assistant
8260 WILLOW OAKS CORPORATE DR STE 400
FAIRFAX, VA 22031
Pediatrics (Pediatric Cardiology)
8260 WILLOW OAKS CORPORATE DR STE 400
FAIRFAX, VA 22031
Pediatrics
8260 WILLOW OAKS CORPORATE DR STE 400
FAIRFAX, VA 22031
Pediatrics (Pediatric Cardiology)
8260 WILLOW OAKS CORPORATE DR STE 400
FAIRFAX, VA 22031
Pediatrics (Pediatric Cardiology)
8260 WILLOW OAKS CORPORATE DR STE 400
FAIRFAX, VA 22031

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1548427271, enumerated as an "individual" on May 20, 2008.

The provider is located at 8260 WILLOW OAKS CORPORATE DR STE 400 FAIRFAX, VA 22031 and the phone number is (703) 573-0504.

Pediatrics with taxonomy code 2080P0202X and a focus in Pediatric Cardiology.