THERESA A LARSON – Psychiatric/Mental Health Nurse Practitioner, NPI 1942040472
Psychiatric/Mental Health Nurse Practitioner
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
11,632 NURSE PRACTITIONER in IL
Provider Addresses for THERESA A LARSON
440 LAKE COOK RD STE 2
DEERFIELD, IL 600155263
Phone: (847) 236-9310
Fax: (847) 236-9411
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 7 Open Payments records for all available years, with a total value of $170.
Total Amount is formed as General ($170) + Research ($0) + Ownership ($0) = $170.
Last reported payment date: 2024-12-04 • Largest payer in this snapshot: ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) ($77).
Total Amount
$170
General + Research + Ownership
Payments
7
Total payment records
General Amount
$170
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-04
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) | $77 |
| Alkermes, Inc. | $32 |
| Tempus AI, Inc | $25 |
| ABBVIE INC. | $18 |
| Tris Pharma Inc | $18 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2025-04-29
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20250429002976 | I | Nurse Practitioner | IL | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 60015)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | IL | |
| Marriage And Family Therapist | WI | |
| Clinical Social Worker | IL | |
| Nurse Practitioner | WI | |
| Mental Health Counselor | IA | |
| Mental Health Counselor | IL | |
| - | FL | |
| Nurse Practitioner | IL | |
| Mental Health Counselor | IA | |
| Clinical Social Worker | IL |
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