MS. SUSAN A. ONDERWYZER LICSW
NPI 1679800957
Social Worker - Clinical in Exeter, NH
About Ms. Susan A. Onderwyzer Licsw NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. SUSAN A. ONDERWYZER LICSW (NPI 1679800957) is an individual clinical provider in Exeter, New Hampshire, licensed in New Hampshire (2117) and active in the NPI registry since November 2009. She is enrolled in Medicare PECOS and maintains 4 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 4
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. Susan A. Onderwyzer Licsw is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Susan Onderwyzer reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Portsmouth, NH 03801
- Reassigned Medicare billing, New Hampshire enrollment
- 65 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 03833 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.
EXETER, NH 03833
EXETER, NH 03833
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 Susan Onderwyzer's NPI number?
The NPI number for Susan Onderwyzer is 1679800957. It was assigned to this individual provider in the NPPES registry on November 8, 2009.
Where is Susan Onderwyzer located?
Susan Onderwyzer practices at 24 Front St Ste 100, Exeter, NH 03833. The listed phone number is (603) 883-0005.
What is Susan Onderwyzer's specialty?
The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.
Is Susan Onderwyzer enrolled in Medicare?
Yes. Susan Onderwyzer is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Susan Onderwyzer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Susan Onderwyzer reassigns Medicare benefits to Seacoast Mental Health Center, Inc. (Portsmouth, NH). 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 Susan Onderwyzer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Susan Onderwyzer accept?
Health plans from Ambetter from NH Healthy Families, Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care and Taro Health list Susan Onderwyzer 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 Susan Onderwyzer was last updated on December 9, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 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.
# Ms. Susan A. Onderwyzer, LICSW · NPI 1679800957
Clinical provider in Exeter, New Hampshire. Individual provider, active in the CMS NPPES registry since November 8, 2009.
## Identity
- **NPI:** 1679800957 (Entity type: Individual)
- **Enumerated:** November 8, 2009
- **Primary specialty:** Social Worker - Clinical · taxonomy 1041C0700X
- **State license:** 2117 (New Hampshire)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 24 FRONT ST STE 100, Exeter, NH 03833-2727
- **Phone:** (603) 883-0005
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Seacoast Mental Health Center, Inc. (NPI 1013092857, Portsmouth, NH), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** December 9, 2024
- **Other identifiers:** Medicaid 3118595 (NH)
---
Source: [NPI Profile](https://npiprofile.com/npi/1679800957) · Data from the CMS NPPES public registry.