TIMOTHY OLSEN
NPI 1699223370
Counselor - Mental Health in Chicago, IL
About Timothy Olsen NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TIMOTHY OLSEN (NPI 1699223370) is an individual mental health provider in Chicago, Illinois and active in the NPI registry since September 2016. He is enrolled in Medicare PECOS and is a graduate of Other (2017).
NPPES Registry Identity
Specialties & Licenses
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
Timothy Olsen 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 Timothy Olsen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Arlington Heights, IL 60004
- Reassigned Medicare billing, Illinois enrollment
- 6 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.
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 Timothy Olsen's NPI number?
The NPI number for Timothy Olsen is 1699223370. It was assigned to this individual provider in the NPPES registry on September 12, 2016.
Where is Timothy Olsen located?
Timothy Olsen practices at 5905 W Eastwood Ave, Chicago, IL 60630. The listed phone number is (312) 545-5247.
What is Timothy Olsen's specialty?
The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.
Is Timothy Olsen enrolled in Medicare?
Yes. Timothy Olsen 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 Timothy Olsen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Timothy Olsen reassigns Medicare benefits to Clinical Care Consultants PC (Arlington Heights, IL). 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 Timothy Olsen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Timothy Olsen was last updated on September 12, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years 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.
# Timothy Olsen · NPI 1699223370
Mental Health provider in Chicago, Illinois. Individual provider, active in the CMS NPPES registry since September 12, 2016.
## Identity
- **NPI:** 1699223370 (Entity type: Individual)
- **Enumerated:** September 12, 2016
- **Primary specialty:** Counselor - Mental Health · taxonomy 101YM0800X
- **Sole proprietor:** Yes
## Practice location
- **Address:** 5905 W EASTWOOD AVE, Chicago, IL 60630-3104
- **Phone:** (312) 545-5247
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Clinical Care Consultants PC (NPI 1043524903, Arlington Heights, IL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2017
## Record status
- **NPPES last updated:** September 12, 2016
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Source: [NPI Profile](https://npiprofile.com/npi/1699223370) · Data from the CMS NPPES public registry.