SONDER PSYCHIATRIC SERVICES, LLC
NPI 1750171492
Nurse Practitioner - Psychiatric/Mental Health in Madison, WI

Q: What is Sonder Psychiatric Services, LLC's NPI number?

The NPI number for Sonder Psychiatric Services, LLC is 1750171492. It was assigned to this organization in the NPPES registry on May 7, 2025. The provider is also known as Sonder Psychiatric Services.

Q: What is Sonder Psychiatric Services, LLC's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Active since May 07, 2025

2921 LANDMARK PLACE, SUITE 215, MADISON, WI 53713(608) 949-2045(608) 299-3795 Get Directions Write a Review

NPPES record last updated: August 11, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 11, 2025, Jun 10, 2025, May 22, 2025 and 1 more (4 updates tracked since 2025).

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About Sonder Psychiatric Services, Llc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

SONDER PSYCHIATRIC SERVICES, LLC (NPI 1750171492) is a healthcare organization registered as a psychiatric/mental health in Madison, Wisconsin and active in the NPI registry since May 2025. The organization lists Allison Ann Barton, Owner Of Sonder Psychiatric Service, as its authorized official.

NPPES Registry Identity

NPI1750171492

Entity TypeOrganization

Primary Taxonomy363LP0808X

Legal Business NameSONDER PSYCHIATRIC SERVICES, LLC

Location Address2921 LANDMARK PLACE, SUITE 215Madison, WI 53713

Mailing Address2921 Landmark Place, Suite 215Madison, WI 53713 · (608) 949-2045 · Fax (608) 299-3795

Phone(608) 949-2045

Fax(608) 299-3795

Organization SubpartNo

Authorized OfficialAllison Ann BartonOwner Of Sonder Psychiatric Service · (608) 949-2045

Enumeration DateMay 7, 2025

Last NPPES UpdateAugust 11, 20254 updates tracked since enumeration

NPPES CertifiedAugust 11, 2025

✔ NPI 1750171492 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LP0808X

2921 LANDMARK PLACE, Madison, WI 53713

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Other Names 1

Other NameSonder Psychiatric Services

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Dean Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Sonder Psychiatric Services, Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Sonder Psychiatric Services, LLC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Allison Barton, APNP

Nurse Practitioner

NPI 1508342130

2921 LANDMARK PL STE 215
Madison, WI 53713

(608) 949-2045

✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Sonder Psychiatric Services, LLC's NPI number?

The NPI number for Sonder Psychiatric Services, LLC is 1750171492. It was assigned to this organization in the NPPES registry on May 7, 2025. The provider is also known as Sonder Psychiatric Services.

Where is Sonder Psychiatric Services, LLC located?

Sonder Psychiatric Services, LLC is located at 2921 Landmark Place Suite 215, Madison, WI 53713. The listed phone number is (608) 949-2045.

What is Sonder Psychiatric Services, LLC's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is Sonder Psychiatric Services, LLC enrolled in Medicare?

Yes. Sonder Psychiatric Services, LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Sonder Psychiatric Services, LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Nurse Practitioner) reassigns their Medicare billing to Sonder Psychiatric Services, LLC. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Sonder Psychiatric Services, LLC accept?

Health plans from Dean Health Plan list Sonder Psychiatric Services, LLC 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 Sonder Psychiatric Services, LLC was last updated on August 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.