MS. AMY R SOMMER MSW
NPI 1194872507
Social Worker - Clinical in Waltham, MA
About Ms. Amy R Sommer Msw NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. AMY R SOMMER MSW (NPI 1194872507) is an individual clinical provider in Waltham, Massachusetts, licensed in North Carolina (P003241) and active in the NPI registry since January 2007. She is enrolled in Medicare PECOS, maintains a secondary practice location in Durham, and is a graduate of Other (2004).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 1
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)
Ms. Amy R Sommer Msw is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Amy Sommer reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,360 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,234 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02451 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.
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 Amy Sommer's NPI number?
The NPI number for Amy Sommer is 1194872507. It was assigned to this individual provider in the NPPES registry on January 5, 2007.
Where is Amy Sommer located?
Amy Sommer practices at 1430 Main St, Waltham, MA 02451. The listed phone number is (781) 647-5327.
What is Amy Sommer's specialty?
The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.
Is Amy Sommer enrolled in Medicare?
Yes. Amy Sommer is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Amy Sommer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Amy Sommer reassigns Medicare benefits to 2 organizations: Massachusetts General Physicians Organization Inc (Boston, MA) and The General Hospital Corporation (Boston, MA). 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 Amy Sommer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Amy Sommer accept?
Health plans from Harvard Pilgrim Health Care list Amy Sommer 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 Amy Sommer was last updated on September 10, 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.
# Ms. Amy R Sommer, MSW · NPI 1194872507
Clinical provider in Waltham, Massachusetts. Individual provider, active in the CMS NPPES registry since January 5, 2007.
## Identity
- **NPI:** 1194872507 (Entity type: Individual)
- **Enumerated:** January 5, 2007
- **Primary specialty:** Social Worker - Clinical · taxonomy 1041C0700X
- **State license:** P003241 (North Carolina)
- **Sole proprietor:** No
## Practice location
- **Address:** 1430 MAIN ST, Waltham, MA 02451-1623
- **Phone:** (781) 647-5327 · **Fax:** (617) 419-6603
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Massachusetts General Physicians Organization Inc (NPI 1801874573, Boston, MA); The General Hospital Corporation (NPI 1023049236, Boston, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2004
## Record status
- **NPPES last updated:** September 10, 2018
- **Other identifiers:** Other P003241 (NC)
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Source: [NPI Profile](https://npiprofile.com/npi/1194872507) · Data from the CMS NPPES public registry.