SIDNEY S THIMM LPCC
NPI 1306709555
Counselor - Mental Health in Duluth, MN
About Sidney S Thimm Lpcc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SIDNEY S THIMM LPCC (NPI 1306709555) is an individual mental health provider in Duluth, Minnesota, licensed in Minnesota (5252) and active in the NPI registry since December 2025. She is enrolled in Medicare PECOS, maintains 5 additional practice locations, and is a graduate of Other (2023).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 5
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Sidney S Thimm Lpcc is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Sidney Thimm reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Duluth, MN 55805
- Reassigned Medicare billing, Minnesota enrollment
- Medicare enrollment name: Human Development Center
- 69 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.
Other Providers at the Same Location NPPES 19
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 Sidney Thimm's NPI number?
The NPI number for Sidney Thimm is 1306709555. It was assigned to this individual provider in the NPPES registry on December 4, 2025.
Where is Sidney Thimm located?
Sidney Thimm practices at 120 W 2nd St, Duluth, MN 55802. The listed phone number is (218) 728-4491.
What is Sidney Thimm's specialty?
The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.
Is Sidney Thimm enrolled in Medicare?
Yes. Sidney Thimm is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Sidney Thimm's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sidney Thimm reassigns Medicare benefits to Brightwater Health Dba Human Development Center (Duluth, MN). 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 Sidney Thimm's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Sidney Thimm accept?
Health plans from Anthem Blue Cross and Blue Shield, HealthPartners and Security Health Plan list Sidney Thimm 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 Sidney Thimm was last updated on December 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# Sidney S Thimm, LPCC · NPI 1306709555
Mental Health provider in Duluth, Minnesota. Individual provider, active in the CMS NPPES registry since December 4, 2025.
## Identity
- **NPI:** 1306709555 (Entity type: Individual)
- **Enumerated:** December 4, 2025
- **Primary specialty:** Counselor - Mental Health · taxonomy 101YM0800X
- **State license:** 5252 (Minnesota)
- **Sole proprietor:** No
## Practice location
- **Address:** 120 W 2ND ST, Duluth, MN 55802-2017
- **Phone:** (218) 728-4491 · **Fax:** (218) 728-4404
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Brightwater Health Dba Human Development Center (NPI 1194790733, Duluth, MN), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2023
## Record status
- **NPPES last updated:** December 4, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1306709555) · Data from the CMS NPPES public registry.