1. Home
  2. Directory
  3. Wisconsin
  4. Middleton
  5. Clinic Center
  6. NPI Profile

MADISON PSYCHIATRIC ASSOCIATES, LTD.
NPI 1821026550
Clinic/Center - Mental Health (Including Community Mental Health Center) in Middleton, WI

Active since June 29, 2006
8383 GREENWAY BLVD STE 500, MIDDLETON, WI 53562(608) 274-0355(608) 274-5546 Get Directions Write a Review

NPPES record last updated: July 24, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jul 24, 2026, Sep 11, 2025, Aug 22, 2020 (3 updates tracked since 2020).

About Madison Psychiatric Associates, Ltd. NPPES

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

MADISON PSYCHIATRIC ASSOCIATES, LTD. (NPI 1821026550) is a healthcare organization registered as a mental health (including community mental health center) in Middleton, Wisconsin and active in the NPI registry since June 2006. The organization lists Renee Sahagian, President, as its authorized official.

NPPES Registry Identity

NPI1821026550
Entity TypeOrganization
Primary Taxonomy261QM0801X
Legal Business NameMADISON PSYCHIATRIC ASSOCIATES, LTD.
Location Address8383 GREENWAY BLVD STE 500Middleton, WI 53562-3529
Mailing Address8383 Greenway Blvd Ste 500Middleton, WI 53562-3529 · (608) 274-0355 · Fax (608) 274-5546
Phone(608) 274-0355
Fax(608) 274-5546
Organization SubpartNo
Authorized OfficialRenee SahagianPresident · (608) 274-0355
Enumeration DateJune 29, 2006
Last NPPES UpdateJuly 24, 20263 updates tracked since enumeration
NPPES CertifiedJuly 24, 2026
✔ NPI 1821026550 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyClinic/Center · Mental Health (Including Community Mental Health Center)Ambulatory Health Care Facilities
Taxonomy Code261QM0801X
Also ListedPsychologistTaxonomy 103T00000X
Also ListedSocial WorkerTaxonomy 104100000X
8383 GREENWAY BLVD STE 500, Middleton, WI 53562
Open in Google Maps ↗

Other Identifiers 1

Other407004WI · Dean Health Plan

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Accepted Insurance

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

Madison Psychiatric Associates, Ltd. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

18

Medicare enrollment records show 18 clinicians reassign Medicare billing to Madison Psychiatric Associates, Ltd., which bills Medicare for the services they deliver. Of these, 13 practice at this address and 16 within 10 miles. They are listed nearest first.

Clinicians by Medicare Specialty 5

Psychiatry7
Clinical Psychologist5
Clinical Social Worker3
Mental Health Counselor2
Nurse Practitioner1

Clinicians, nearest first (18)

Denise Calhoun, PH.D
Clinical Psychologist
NPI 1538716956
8383 GREENWAY BLVD STE 500
Middleton, WI 53562
(608) 274-0355
✔ PECOS✔ Accepts MedicareSame address
Emily Courtois, PH.D.
Clinical Psychologist
NPI 1760967145
8383 GREENWAY BLVD STE 500
Middleton, WI 53562
(608) 274-0355
✔ PECOS✔ Accepts MedicareSame address
Atit Desai, M.D.
Psychiatry
NPI 1801845672
8383 GREENWAY BLVD STE 500
Middleton, WI 53562
(608) 274-0355
✔ PECOS✔ Accepts MedicareSame address
Alan Dimond, MD
Psychiatry
NPI 1053576090
8383 GREENWAY BLVD STE 500
Middleton, WI 53562
(608) 274-4273
✔ PECOS✔ Accepts MedicareSame address
Emily Howell-Little, M.D.
Psychiatry
NPI 1851650378
8383 GREENWAY BLVD STE 500
Middleton, WI 53562
(608) 274-0355
✔ PECOSSame address
Fern Kanitz, LPC
Mental Health Counselor
NPI 1477719631
8383 GREENWAY BLVD STE 500
Middleton, WI 53562
(608) 274-0355
✔ PECOS✔ Accepts MedicareSame address
Donal Maccoon, PH.D.
Clinical Psychologist
NPI 1841399573
8383 GREENWAY BLVD STE 500
Middleton, WI 53562
(608) 274-0355
✔ PECOS✔ Accepts MedicareSame address
Kaitlyn Mellom, LCSW
Clinical Social Worker
NPI 1871272609
8383 GREENWAY BLVD STE 500
Middleton, WI 53562
(608) 274-0355
✔ PECOSSame address
Chloe Perlis, L.C.S.W.
Clinical Social Worker
NPI 1679925036
8383 GREENWAY BLVD STE 500
Middleton, WI 53562
(608) 274-0355
✔ PECOS✔ Accepts MedicareSame address
Jeffrey Smarrella, M.D.
Psychiatry
NPI 1770532442
8383 GREENWAY BLVD STE 500
Middleton, WI 53562
(608) 274-0355
✔ PECOS✔ Accepts MedicareSame address
Michael Sweetnam, PH.D.
Clinical Psychologist
NPI 1720095169
8383 GREENWAY BLVD STE 500
Middleton, WI 53562
(608) 274-0355
✔ PECOS✔ Accepts MedicareSame address
Brian Vasey, MD
Psychiatry
NPI 1124096086
8383 GREENWAY BLVD STE 500
Middleton, WI 53562
(608) 274-0355
✔ PECOS✔ Accepts MedicareSame address
Jennifer Yessa Kast, MSSW
Clinical Social Worker
NPI 1619933496
8383 GREENWAY BLVD STE 500
Middleton, WI 53562
(608) 274-0355
✔ PECOS✔ Accepts MedicareSame address
Joseph Zeman
Mental Health Counselor
NPI 1164970471
6333 ODANA RD SUITE 20
Madison, WI 53719
(608) 270-2511
✔ PECOS✔ Accepts Medicare3.0 mi
Lawrence Wolfinsohn, PHD
Clinical Psychologist
NPI 1255344917
440 SCIENCE DR STE 200
Madison, WI 53711
(608) 238-5176
✔ PECOS✔ Accepts Medicare3.5 mi
Tal Herbsman, MD
Psychiatry
NPI 1083711048
700 S PARK ST
Madison, WI 53715
(608) 251-6100
✔ PECOS✔ Accepts Medicare6.6 mi
Paul Larson, M.D.
Psychiatry
NPI 1124091749
721 AMERICAN AVENUE SUITE 501 PHC BEHAVIORAL MEDICINE CENTER
Waukesha, WI 53188
(262) 928-2396
✔ PECOS65 mi
Christen Harer, FPMHNP, MSN
Nurse Practitioner
NPI 1033450481
644 UNIVERSITY BLVD
Harrisonburg, VA 22801
(540) 564-5960
✔ PECOS✔ Accepts Medicare645 mi

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 Madison Psychiatric Associates, Ltd.'s NPI number?

The NPI number for Madison Psychiatric Associates, Ltd. is 1821026550. It was assigned to this organization in the NPPES registry on June 29, 2006.

Where is Madison Psychiatric Associates, Ltd. located?

Madison Psychiatric Associates, Ltd. is located at 8383 Greenway Blvd Ste 500, Middleton, WI 53562. The listed phone number is (608) 274-0355.

What is Madison Psychiatric Associates, Ltd.'s specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Mental Health (Including Community Mental Health Center), with taxonomy code 261QM0801X.

Is Madison Psychiatric Associates, Ltd. enrolled in Medicare?

Yes. Madison Psychiatric Associates, Ltd. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Madison Psychiatric Associates, Ltd.?

According to the CMS Revalidation Reassignment List (October 2026 release), 18 clinicians in 5 Medicare specialties reassign their Medicare billing to Madison Psychiatric Associates, Ltd.. 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. The largest specialties are Psychiatry (7), Clinical Psychologist (5) and Clinical Social Worker (3). Of these, 13 practice at this address and 16 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Madison Psychiatric Associates, Ltd. accept?

Health plans from Dean Health Plan and Quartz list Madison Psychiatric Associates, Ltd. 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 Madison Psychiatric Associates, Ltd. was last updated on July 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.