JENNIFER B. O'NEIL MD – NPI #1548427271
Pediatrics
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.
JENNIFER O'NEIL is a physician located in FAIRFAX, VA. NPPES has assigned the NPI number 1548427271 to JENNIFER O'NEIL on May 20, 2008. It is a Type-1 NPI, indicating this NPI number is associated with an individual. She is also known by her former name JENNIFER LYNN BROWN. With multiple taxonomy codes selected, the primary taxonomy selected by this provider is 2080P0202X from the Health Care Provider Taxonomy code set, which is classified as Pediatrics, specializing in Pediatric Cardiology
The NPI profile was last updated on May 05, 2026. Use the NPI data found here to bill health insurance companies, identify providers enrolled in Medicare and Medicaid services or other HIPAA compliant transactions. See the complete NPI profile for JENNIFER O'NEIL below.
NPI Profile for
JENNIFER B. O'NEIL
(more than 18 years ago)
FAIRFAX, VA 22031-4513 Phone: (703) 573-0504 Fax: (703) 573-4856
1 Other location(s):
Fairfax, VA 22031-4513
Phone: (703) 573-0504
Fax: (571) 573-4856
BALTIMORE, MD 21297-3174 Phone: (571) 423-5699 Fax: (571) 423-5698
Note: NPPES allows providers to attest to the accuracy of their NPI data. When a provider request any change to the NPI record, they will be able to attest to their changed NPI data, resulting in an updated certification date.
A taxonomy code is a code that describes the health care service provider's type, classification, and the area of specialization. The primary specialty for this provider is indicated as (Primary) below.
| Taxonomy Classification / Specialization | State | License |
|---|---|---|
| 2080P0202X - Pediatrics / Pediatric Cardiology (Primary) |
VA | 0101250398 |
| 208000000X - Pediatrics |
VA | 0101250398 |
The taxonomy codes are selected by the provider at the time of NPI registration. Selection of a taxonomy code does not replace any credentialing or validation process that the provider requesting the code should complete.
Additional Information
- Refer to Part B
- Order Durable Medical Equipment
- Refer to Home Health Agency
- Order Power Mobility Devices
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