Willow Tree Counseling Services
Willow Tree Counseling Services holds 4 active organization NPIs in the federal registry, with practice locations in 4 cities in 3 states. 2 list mental health counselor as their primary taxonomy; each location can bill under its own NPI.
Search the organization with your city to find the NPI for the location you visit or bill.
Find a location's NPIBoulder, CO has the most NPIs, 1
Source: CMS NPPES monthly file of Aug 9, 2026, organization NPIs by practice city.
Most NPIs were issued in 2013 and 2018
Source: CMS NPPES, enumeration dates.
1 NPIs were issued in 2013 alone, more than in any other year; none in 9 of the years between.
Boulder, CO locations
The city with the most Willow Tree Counseling Services NPIs. The full list of all 4 follows.
| NPI | Location | Primary taxonomy | Issued |
|---|---|---|---|
| 1942808712 | 613 WALNUT ST, Boulder, CO | Mental Health Counselor | Oct 14, 2020 |
All 4 locations, by state and city
| NPI | Location | Primary taxonomy | Issued |
|---|---|---|---|
| 1942808712 | 613 WALNUT ST, Boulder, CO | Mental Health Counselor | Oct 14, 2020 |
| 1558837427 | 3954 YOUNGFIELD ST, Wheat Ridge, CO | Mental Health Counselor | Oct 18, 2018 |
| 1417744947 | 1531 S GROVE AVE UNIT 204, Barrington, IL | Mental Health Clinic/Center (Including Community Mental Health Center) | Apr 21, 2025 |
| 1699104414 | 5796 RIVER RD, East China, MI | Community/Behavioral Health Agency | Nov 2, 2013 |
Checking an organization
- Match the NPI to the exact location you will visit or bill; each location can have its own.
- Confirm the business entity with the secretary of state.
- Check the HHS-OIG exclusion list for the organization and its owners.
- Verify each clinician you will see on their own record and with the state license search.
Common questions
Why does Willow Tree Counseling Services have 4 NPIs?
An organization may obtain more than one Type 2 NPI, for example for separate locations or units that bill on their own. Willow Tree Counseling Services's NPIs list practice locations in 4 cities.
Is an organization NPI a license?
No. An NPI identifies who bills. Facilities and the clinicians who work there are licensed separately by the state.
Source: CMS National Plan and Provider Enumeration System (NPPES), monthly file of Aug 9, 2026 (NPPES files on CMS.gov). An NPI identifies who bills; it is not a license.