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DR. JOSIAH PHILIP RYABINOV D.C.
NPI 1841560489
Chiropractor in Ashburn, VA

Active since January 11, 2012
21020 SYCOLIN RD STE 145, ASHBURN, VA 20147(800) 404-6050(866) 313-3397 Get Directions Write a Review

NPPES record last updated: February 24, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Josiah Philip Ryabinov D.c. NPPES

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

DR. JOSIAH PHILIP RYABINOV D.C. (NPI 1841560489) is an individual chiropractor in Ashburn, Virginia, licensed in Virginia (0104556946) and active in the NPI registry since January 2012.

NPPES Registry Identity

NPI1841560489
Entity TypeIndividualMale
Primary Taxonomy111N00000X
Provider Legal NameDR. JOSIAH PHILIP RYABINOVCredential: D.C.
Location Address21020 SYCOLIN RD STE 145Ashburn, VA 20147-4040
Mailing AddressPo Box 700688San Antonio, TX 78270-0688 · (800) 404-6050 · Fax (866) 313-3397
Phone(800) 404-6050
Fax(866) 313-3397
Sole ProprietorYes
Enumeration DateJanuary 11, 2012
Last NPPES UpdateFebruary 24, 2026
NPPES CertifiedFebruary 24, 2026
✔ NPI 1841560489 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyChiropractorChiropractic Providers
Taxonomy Code111N00000X
License✔ Licensed in VA · 0104556946
Definition
A provider qualified by a Doctor of Chiropractic (D.C.), licensed by the State and who practices chiropractic medicine -that discipline within the healing arts which deals with the nervous system and its relationship to the spinal column and its interrelationship with other body systems.
21020 SYCOLIN RD STE 145, Ashburn, VA 20147
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Other Identifiers 1

Other0104556946VA · Chiropractic License

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Josiah Philip Ryabinov D.c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Billing Reassignment

Medicare enrollment records show Josiah Ryabinov reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Airrosti Potomac L.L.C.
1,360 mi
Rehabilitation
111 TOWER DR BLDG 1
San Antonio, TX 78232
  • Reassigned Medicare billing, District of Columbia and Virginia enrollments
  • Medicare enrollment name: Airrosti Potomac LLC
  • 12 clinicians in this Medicare group
NPI 1861761991 (800) 404-6050

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 Josiah Ryabinov's NPI number?

The NPI number for Josiah Ryabinov is 1841560489. It was assigned to this individual provider in the NPPES registry on January 11, 2012.

Where is Josiah Ryabinov located?

Josiah Ryabinov practices at 21020 Sycolin Rd Ste 145, Ashburn, VA 20147. The listed phone number is (800) 404-6050.

What is Josiah Ryabinov's specialty?

The primary specialty registered for this NPI is Chiropractor with taxonomy code 111N00000X.

Is Josiah Ryabinov enrolled in Medicare?

Yes. Josiah Ryabinov is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Josiah Ryabinov's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Josiah Ryabinov reassigns Medicare benefits to Airrosti Potomac L.L.C. (San Antonio, TX). The 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 Josiah Ryabinov's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Josiah Ryabinov was last updated on February 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.