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TARA IYENGAR M.D.
NPI 1851822142
Pediatrics - Pediatric Cardiology in Fairfax, VA

Active since March 27, 2017PECOS EnrolledAccepts Medicare Assignment
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: October 28, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jun 19, 2024, Jun 5, 2024, Feb 20, 2020 and 2 more (5 updates tracked since 2017).

About Tara Iyengar M.d. NPPES

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

TARA IYENGAR M.D. (NPI 1851822142) is an individual pediatric cardiology provider in Fairfax, Virginia, licensed in Virginia (0101285349) and active in the NPI registry since March 2017. She is enrolled in Medicare PECOS and is a graduate of University Of Maryland School Of Medicine (2017).

NPPES Registry Identity

NPI1851822142
Entity TypeIndividualFemale
Primary Taxonomy2080P0202X
Provider Legal NameTARA IYENGARCredential: M.D.
Location Address8260 WILLOW OAKS CORPORATE DR STE 400Fairfax, VA 22031-4513
Mailing Address8260 Willow Oaks Corporate Dr Ste 400Fairfax, VA 22031-4513 · (703) 573-0504 · Fax (703) 573-4856
Phone(703) 573-0504
Fax(703) 573-4856
Sole ProprietorNo
Medical School CMSUniversity Of Maryland School Of MedicineGraduated 2017
Enumeration DateMarch 27, 2017
Last NPPES UpdateOctober 28, 20255 updates tracked since enumeration
NPPES CertifiedOctober 28, 2025
✔ NPI 1851822142 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric CardiologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0202X
Licenses✔ Licensed in VA · 0101285349✔ Licensed in MD · D0104156
Definition
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.
8260 WILLOW OAKS CORPORATE DR STE 400, Fairfax, VA 22031
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health.Insurance ›

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

Tara Iyengar M.d. 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 ID6204258882
PECOS Enrollment IDI20250922001842, I20251002004572
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

2

Medicare enrollment records show Tara Iyengar reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Inova Health Care Services
0.5 mi
Internal Medicine
3300 GALLOWS RD, PHYSICIAN SERVICES
Falls Church, VA 22042
  • Reassigned Medicare billing, District of Columbia, Maryland and Virginia enrollments
  • Also billed through NPI 1588717755 (Virginia)
  • 2,618 clinicians in this Medicare group
NPI 1952320061 (703) 321-2627
Stc Pediatrics LLC
118 mi
Pediatric Gastroenterology
1020 GRINGS HILL RD
Reading, PA 19608
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 479 clinicians in this Medicare group
NPI 1225755952 (215) 427-6778

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

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.

KRISTEN ELIZABETH BARBIERI PA-C
Physician Assistant
8260 WILLOW OAKS CORPORATE DR STE 400
FAIRFAX, VA 22031
Fairfax County (703) 573-0504
KINJAL PARIKH MD
Pediatrics (Pediatric Cardiology)
8260 WILLOW OAKS CORPORATE DR STE 400
FAIRFAX, VA 22031
Fairfax County (703) 573-0504
DR. HARISH SITARAM RUDRA D.O.
Pediatrics (Pediatric Cardiology)
8260 WILLOW OAKS CORPORATE DR STE 400
FAIRFAX, VA 22031
Fairfax County (703) 573-0504
SHERIF S TAWFIK M.D.
Pediatrics (Pediatric Cardiology)
8260 WILLOW OAKS CORPORATE DR STE 400
FAIRFAX, VA 22031
Fairfax County (703) 573-0504
JENNIFER H LINDSEY M.D.
Pediatrics (Pediatric Cardiology)
8260 WILLOW OAKS CORPORATE DR STE 400
FAIRFAX, VA 22031
Fairfax County (703) 573-0504
MARC DELANEY MD
Pediatrics (Pediatric Cardiology)
8260 WILLOW OAKS CORPORATE DR STE 400
FAIRFAX, VA 22031
Fairfax County (703) 573-0504
DR. HIRAL SHAH MD
Pediatrics
8260 WILLOW OAKS CORPORATE DR STE 400
FAIRFAX, VA 22031
Fairfax County (703) 573-0504
PATRICK F CALLAHAN M.D.
Pediatrics (Pediatric Cardiology)
8260 WILLOW OAKS CORPORATE DR STE 400
FAIRFAX, VA 22031
Fairfax County (703) 573-0504

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 Tara Iyengar's NPI number?

The NPI number for Tara Iyengar is 1851822142. It was assigned to this individual provider in the NPPES registry on March 27, 2017.

Where is Tara Iyengar located?

Tara Iyengar practices at 8260 Willow Oaks Corporate Dr Ste 400, Fairfax, VA 22031. The listed phone number is (703) 573-0504.

What is Tara Iyengar's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Cardiology, with taxonomy code 2080P0202X.

Is Tara Iyengar enrolled in Medicare?

Yes. Tara Iyengar 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 Tara Iyengar's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Tara Iyengar reassigns Medicare benefits to 2 organizations: Inova Health Care Services (Falls Church, VA) and Stc Pediatrics LLC (Reading, 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 Tara Iyengar's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Tara Iyengar accept?

Health plans from Oscar Health list Tara Iyengar 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 Tara Iyengar was last updated on October 28, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.