SHAYNA R. SAROSIEK MD
NPI 1083840607
Internal Medicine - Hematology in Boston, MA
About Shayna R. Sarosiek Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SHAYNA R. SAROSIEK MD (NPI 1083840607) is an individual hematology provider in Boston, Massachusetts, licensed in Massachusetts (250732) and active in the NPI registry since June 2009. She is enrolled in Medicare PECOS, is affiliated with North Shore Medical Center -, and is a graduate of University Of Miami, Lm Miller School Of Medicine (2009).
NPPES Registry Identity
Specialties & Licenses 3
Other Identifiers 2
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
Shayna R. Sarosiek 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 Reassignment
Medicare enrollment records show Shayna Sarosiek 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
- Also billed through NPI 1851333686 (Massachusetts)
- 531 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.
Areas of Expertise CMS Part B claims 15
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
North Shore Medical Center -
Acute Care Hospitals · Salem, MABrigham And Women's Hospital
Acute Care Hospitals · Boston, MAWentworth-Douglass Hospital
Acute Care Hospitals · Dover, NHThe Miriam Hospital
Acute Care Hospitals · Providence, RIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02118 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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 02118
BOSTON, MA 02118
BOSTON, MA 02118
BOSTON, MA 02118
BOSTON, MA 02118
BOSTON, MA 02118
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 Shayna Sarosiek's NPI number?
The NPI number for Shayna Sarosiek is 1083840607. It was assigned to this individual provider in the NPPES registry on June 10, 2009.
Where is Shayna Sarosiek located?
Shayna Sarosiek practices at 830 Harrison Ave Moakley, 3rd Floor, Boston, MA 02118. The listed phone number is (617) 638-6428.
What is Shayna Sarosiek's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology, with taxonomy code 207RH0000X.
Is Shayna Sarosiek enrolled in Medicare?
Yes. Shayna Sarosiek 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 organization bills Medicare for Shayna Sarosiek's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Shayna Sarosiek reassigns Medicare benefits to Dana-Farber Cancer Institute, 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 Shayna Sarosiek's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Shayna Sarosiek accept?
Health plans from Anthem Blue Cross and Blue Shield and Taro Health list Shayna Sarosiek 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.
Is Shayna Sarosiek affiliated with any hospitals?
According to CMS data, Shayna Sarosiek is affiliated with North Shore Medical Center -, Brigham And Women's Hospital, Wentworth-Douglass Hospital and The Miriam Hospital.
When was this NPI record last updated?
The NPPES record for Shayna Sarosiek was last updated on September 27, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.