DR. OLHA HALYABAR
NPI 1881952547
Pediatrics - Pediatric Rheumatology in Boston, MA
About Dr. Olha Halyabar NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. OLHA HALYABAR (NPI 1881952547) is an individual pediatric rheumatology provider in Boston, Massachusetts, licensed in Massachusetts (275552) and active in the NPI registry since May 2012. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Olha Halyabar is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Olha Halyabar reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Boston, MA 02115
- Reassigned Medicare billing, Massachusetts enrollment
- 1,358 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.
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.
BOSTON, MA 02115
BOSTON, MA 02115
BOSTON, MA 02115
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 Olha Halyabar's NPI number?
The NPI number for Olha Halyabar is 1881952547. It was assigned to this individual provider in the NPPES registry on May 1, 2012.
Where is Olha Halyabar located?
Olha Halyabar practices at 300 Longwood Ave, Boston, MA 02115. The listed phone number is (617) 355-6000.
What is Olha Halyabar's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Rheumatology, with taxonomy code 2080P0216X.
Is Olha Halyabar enrolled in Medicare?
Yes. Olha Halyabar is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Olha Halyabar's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Olha Halyabar reassigns Medicare benefits to Children's Hospital Pediatric Associates, Inc (Boston, MA). 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 Olha Halyabar's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Olha Halyabar accept?
Health plans from Taro Health list Olha Halyabar 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 Olha Halyabar was last updated on August 13, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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. Olha Halyabar · NPI 1881952547
Pediatric Rheumatology physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since May 1, 2012.
## Identity
- **NPI:** 1881952547 (Entity type: Individual)
- **Enumerated:** May 1, 2012
- **Primary specialty:** Pediatrics - Pediatric Rheumatology · taxonomy 2080P0216X
- **State license:** 275552 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 300 LONGWOOD AVE, Boston, MA 02115
- **Phone:** (617) 355-6000
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Children's Hospital Pediatric Associates, Inc (NPI 1457306664, Boston, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** August 13, 2018
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Source: [NPI Profile](https://npiprofile.com/npi/1881952547) · Data from the CMS NPPES public registry.