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BUSTOS ASSOCIATES LLC
NPI 1922335561
Internal Medicine - Nephrology in Washington, DC

Active since November 03, 2009
1140 VARNUM ST NE STE 202, WASHINGTON, DC 20017(202) 269-6430(202) 269-6598 Get Directions Write a Review

NPPES record last updated: October 3, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 11, 2024, Sep 24, 2021 (2 updates tracked since 2021).

About Bustos Associates Llc NPPES

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

BUSTOS ASSOCIATES LLC (NPI 1922335561) is a healthcare organization registered as a nephrology in Washington, District Of Columbia and active in the NPI registry since November 2009. The organization maintains a secondary practice location in Falls Church and lists Michelle A Yrastorza, Revenue Cycle Specialist, as its authorized official.

NPPES Registry Identity

NPI1922335561
Entity TypeOrganization
Primary Taxonomy207RN0300X
Legal Business NameBUSTOS ASSOCIATES LLC
Location Address1140 VARNUM ST NE STE 202Washington, DC 20017-2153
Mailing Address1140 Varnum St Ne Ste 202Washington, DC 20017-2153 · (202) 269-6430 · Fax (202) 269-6598
Phone(202) 269-6430
Fax(202) 269-6598
Organization SubpartNo
Authorized OfficialMichelle A YrastorzaRevenue Cycle Specialist · (202) 269-6430
Enumeration DateNovember 3, 2009
Last NPPES UpdateOctober 3, 20252 updates tracked since enumeration
NPPES CertifiedOctober 3, 2025
✔ NPI 1922335561 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 6

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
Definition
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
Also ListedClinic/Center · Primary CareTaxonomy 261QP2300X
Also ListedExclusive Provider OrganizationTaxonomy 302F00000X
Also ListedHealth Maintenance OrganizationTaxonomy 302R00000X
Also ListedPreferred Provider OrganizationTaxonomy 305R00000X
Also ListedPoint of ServiceTaxonomy 305S00000X
1140 VARNUM ST NE STE 202, Washington, DC 20017
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Secondary Practice Location 1

Location 16408 Seven Corners Pl Ste CFalls Church, VA 22044-2011 · Phone (703) 237-1197 · Fax (202) 269-6598

Other Identifiers 7

Other0101048655VA · License
OtherMD19909DC · License
Medicaid055092400DC
OtherZ26477356MD · Sdat
Medicaid540055400MD
OtherD0042936MD · License
Other2025092322349376VA · Scc

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Bustos Associates Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

3

Medicare enrollment records show 3 clinicians reassign Medicare billing to Bustos Associates LLC, which bills Medicare for the services they deliver. Of these, 3 practice at this address. They are listed nearest first.

Clinicians, nearest first (3)

Brian Bustos, MD
Nephrology
NPI 1952930455
1140 VARNUM ST NE STE 202
Washington, DC 20017
(202) 269-6430
✔ PECOS✔ Accepts MedicareSame address
Elwin Bustos, MD
Nephrology
NPI 1467543686
1140 VARNUM ST NE STE 202
Washington, DC 20017
(202) 269-6430
✔ PECOS✔ Accepts MedicareSame address
Antonina Kolesnikova, MD
Nephrology
NPI 1598932592
1140 VARNUM ST NE STE 202
Washington, DC 20017
(202) 269-6430
✔ PECOS✔ Accepts MedicareSame address

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

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 Bustos Associates LLC's NPI number?

The NPI number for Bustos Associates LLC is 1922335561. It was assigned to this organization in the NPPES registry on November 3, 2009.

Where is Bustos Associates LLC located?

Bustos Associates LLC is located at 1140 Varnum St NE Ste 202, Washington, DC 20017. The listed phone number is (202) 269-6430.

What is Bustos Associates LLC's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Bustos Associates LLC enrolled in Medicare?

Yes. Bustos Associates LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Bustos Associates LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 3 clinicians, all in Nephrology, reassign their Medicare billing to Bustos Associates LLC. A 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 the clinician's services. Of these, 3 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Bustos Associates LLC was last updated on October 3, 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.