KRISTY SONSTROEM MSW, LCSW
NPI 1699256552
Social Worker - Clinical in West Springfield, MA
About Kristy Sonstroem Msw, Lcsw NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KRISTY SONSTROEM MSW, LCSW (NPI 1699256552) is an individual clinical provider in West Springfield, Massachusetts, licensed in Connecticut (010079) and active in the NPI registry since August 2018. She is enrolled in Medicare PECOS and is a graduate of Other (2011).
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 and accepts Medicare assignment
Kristy Sonstroem Msw, Lcsw 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 Kristy Sonstroem reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Orange, CT 06477
- Reassigned Medicare billing, Connecticut enrollment
- Medicare enrollment name: Impact Health PC
- 129 clinicians in this Medicare group
Orange, CT 06477
- Reassigned Medicare billing, Connecticut enrollment
- 46 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 3
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 01089 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
WEST SPRINGFIELD, MA 01089
WEST SPRINGFIELD, MA 01089
WEST SPRINGFIELD, MA 01089
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 Kristy Sonstroem's NPI number?
The NPI number for Kristy Sonstroem is 1699256552. It was assigned to this individual provider in the NPPES registry on August 28, 2018.
Where is Kristy Sonstroem located?
Kristy Sonstroem practices at 103 Myron St Ste A, West Springfield, MA 01089. The listed phone number is (413) 592-1980.
What is Kristy Sonstroem's specialty?
The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.
Is Kristy Sonstroem enrolled in Medicare?
Yes. Kristy Sonstroem 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 Kristy Sonstroem's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Kristy Sonstroem reassigns Medicare benefits to 2 organizations: Impact Health P.C. (Orange, CT) and Impact Health Psych PC (Orange, CT). 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 Kristy Sonstroem's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Kristy Sonstroem accept?
Health plans from Anthem Blue Cross and Blue Shield list Kristy Sonstroem 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 Kristy Sonstroem was last updated on August 28, 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.
# Kristy Sonstroem, MSW, LCSW · NPI 1699256552
Clinical provider in West Springfield, Massachusetts. Individual provider, active in the CMS NPPES registry since August 28, 2018.
## Identity
- **NPI:** 1699256552 (Entity type: Individual)
- **Enumerated:** August 28, 2018
- **Primary specialty:** Social Worker - Clinical · taxonomy 1041C0700X
- **State license:** 010079 (Connecticut)
- **Sole proprietor:** No
## Practice location
- **Address:** 103 MYRON ST STE A, West Springfield, MA 01089-1485
- **Phone:** (413) 592-1980 · **Fax:** (413) 439-0100
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Impact Health P.C. (NPI 1730694316, Orange, CT); Impact Health Psych PC (NPI 1730781022, Orange, CT) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2011
## Record status
- **NPPES last updated:** August 28, 2018
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Source: [NPI Profile](https://npiprofile.com/npi/1699256552) · Data from the CMS NPPES public registry.