What is Chestnut Health Systems Inc's NPI number?

Chestnut Health Systems Inc's National Provider Identifier (NPI) is 1619921665, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What type of organization is Chestnut Health Systems Inc?

Chestnut Health Systems Inc is classified in the NPPES registry as Mental Health Clinic/Center (Including Community Mental Health Center) (Ambulatory Health Care Facilities).

Where is Chestnut Health Systems Inc located?

Chestnut Health Systems Inc's practice location on file with NPPES is 50 Northgate Industrial Dr, Granite City, IL 62040-6805.

What is Chestnut Health Systems Inc's phone number?

The practice phone number listed in the NPPES registry for Chestnut Health Systems Inc is (618) 877-4420.

Who is the authorized official for Chestnut Health Systems Inc?

The authorized official listed on Chestnut Health Systems Inc's NPPES record is Megan Taylor, Managed Care Supervisor. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.

Is Chestnut Health Systems Inc's NPI active?

Yes — Chestnut Health Systems Inc's NPI (1619921665) is active in the NPPES registry as of the last update on 2023-03-16.

OrganizationActive

Chestnut Health Systems Inc

NPI 1619921665 · Mental Health Clinic/Center (Including Community Mental Health Center) · Granite City, IL

Chestnut Health Systems Inc is a Mental Health Clinic/Center (Including Community Mental Health Center) organization in Granite City, IL (NPI 1619921665).

Provider details

NPI number: 1619921665
Entity type: Organization
Primary specialty: Mental Health Clinic/Center (Including Community Mental Health Center)Ambulatory Health Care Facilities
Organization subpart: No
Authorized official: Megan Taylor, Managed Care Supervisor(888) 924-3786
License: 04023 (IL)

Practice location

50 Northgate Industrial Dr

Granite City, IL 62040-6805

Phone: (618) 877-4420

Fax: (618) 877-0904

Street-level locationGet directions

More IL providers

Mailing address

1003 Martin Luther King Dr

Bloomington, IL 61701-1429

Specialties & taxonomies

Mental Health Clinic/Center (Including Community Mental Health Center)Primary261QM0801XLicense 04023 (IL)
Ambulatory Health Care Facilities

Profile Score

Detailed profile(91/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
20 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Enumerated: 2006-05-22
Last updated: 2023-03-16
Certified: 2023-03-16

Frequently asked questions

What is Chestnut Health Systems Inc's NPI number?: Chestnut Health Systems Inc's National Provider Identifier (NPI) is 1619921665, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What type of organization is Chestnut Health Systems Inc?: Chestnut Health Systems Inc is classified in the NPPES registry as Mental Health Clinic/Center (Including Community Mental Health Center) (Ambulatory Health Care Facilities).
Where is Chestnut Health Systems Inc located?: Chestnut Health Systems Inc's practice location on file with NPPES is 50 Northgate Industrial Dr, Granite City, IL 62040-6805.
What is Chestnut Health Systems Inc's phone number?: The practice phone number listed in the NPPES registry for Chestnut Health Systems Inc is (618) 877-4420.
Who is the authorized official for Chestnut Health Systems Inc?: The authorized official listed on Chestnut Health Systems Inc's NPPES record is Megan Taylor, Managed Care Supervisor. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
Is Chestnut Health Systems Inc's NPI active?: Yes — Chestnut Health Systems Inc's NPI (1619921665) is active in the NPPES registry as of the last update on 2023-03-16.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

Registry dates

Frequently asked questions

Specialties & taxonomies

Profile Score

Frequently asked questions