DR. NATALIE A SIKKA MD
NPI 1851322424
Pediatrics - Pediatric Gastroenterology in Fairfax, VA
About Dr. Natalie A Sikka Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. NATALIE A SIKKA MD (NPI 1851322424) is an individual pediatric gastroenterology provider in Fairfax, Virginia, licensed in New York (235975) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS and is a graduate of Other (1999).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Accepted 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
Dr. Natalie A Sikka Md 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.
Medicare Billing Reassignments
2Medicare enrollment records show Natalie Sikka reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Fairfax, VA 22031
- Reassigned Medicare billing, District of Columbia and Virginia enrollments
- 128 clinicians in this Medicare group
Falls Church, VA 22042
- Reassigned Medicare billing, District of Columbia and Virginia enrollments
- Also billed through NPI 1588717755 (Virginia)
- 2,618 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 22031 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
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.
FAIRFAX, VA 22031
FAIRFAX, VA 22031
FAIRFAX, VA 22031
FAIRFAX, VA 22031
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 Natalie Sikka's NPI number?
The NPI number for Natalie Sikka is 1851322424. It was assigned to this individual provider in the NPPES registry on July 5, 2006.
Where is Natalie Sikka located?
Natalie Sikka practices at 8505 Arlington Blvd Suite 400, Fairfax, VA 22031. The listed phone number is (571) 226-5600.
What is Natalie Sikka's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Gastroenterology, with taxonomy code 2080P0206X.
Is Natalie Sikka enrolled in Medicare?
Yes. Natalie Sikka 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 Natalie Sikka's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Natalie Sikka reassigns Medicare benefits to 2 organizations: Pediatric Specialists Of Virginia, LLC (Fairfax, VA) and Inova Health Care Services (Falls Church, VA). 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 Natalie Sikka's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Natalie Sikka accept?
Health plans from Oscar Health list Natalie Sikka 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 Natalie Sikka was last updated on December 25, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 years 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.
# Dr. Natalie A Sikka, MD · NPI 1851322424
Pediatric Gastroenterology physician in Fairfax, Virginia. Individual provider, active in the CMS NPPES registry since July 5, 2006.
## Identity
- **NPI:** 1851322424 (Entity type: Individual)
- **Enumerated:** July 5, 2006
- **Primary specialty:** Pediatrics - Pediatric Gastroenterology · taxonomy 2080P0206X
- **State license:** 235975 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 8505 ARLINGTON BLVD, SUITE 400, Fairfax, VA 22031-4621
- **Phone:** (571) 226-5600
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Pediatric Specialists Of Virginia, LLC (NPI 1699119818, Fairfax, VA); Inova Health Care Services (NPI 1952320061, Falls Church, VA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1999
## Record status
- **NPPES last updated:** December 25, 2009
- **Other identifiers:** Medicare UPIN I43835; Medicaid 02695114 (NY); Medicare ID-Type Unspecified RA8414
---
Source: [NPI Profile](https://npiprofile.com/npi/1851322424) · Data from the CMS NPPES public registry.