ST. CHARLES PSYCHIATRIC ASSOCIATES, INC.
NPI 1164631495
Specialist in Weldon Spring, MO

Active since May 22, 2007CLIA 26D2047264 · Waiver
4801 WELDON SPRING PKWY STE 300, WELDON SPRING, MO 63304(636) 949-5760(866) 440-9231 Get Directions Write a Review

NPPES record last updated: October 8, 2025. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About St. Charles Psychiatric Associates, Inc. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ST. CHARLES PSYCHIATRIC ASSOCIATES, INC. (NPI 1164631495) is a healthcare organization registered as a specialist in Weldon Spring, Missouri and active in the NPI registry since May 2007. The organization holds a CLIA Waiver certificate valid through September 19, 2028, maintains a secondary practice location in Brentwood, and lists Jasmine M Tidwell, Billing Manager, as its authorized official.

NPPES Registry Identity

NPI1164631495
Entity TypeOrganization
Primary Taxonomy174400000X
Legal Business NameST. CHARLES PSYCHIATRIC ASSOCIATES, INC.
Location Address4801 WELDON SPRING PKWY STE 300Weldon Spring, MO 63304-9101
Mailing Address4801 Weldon Spring Pkwy Ste 300Weldon Spring, MO 63304-9101 · (636) 949-5760 · Fax (866) 440-9231
Fax(866) 440-9231
Organization SubpartNo
Authorized OfficialJasmine M TidwellBilling Manager · (636) 949-5760
Enumeration DateMay 22, 2007
Last NPPES UpdateOctober 8, 2025
NPPES CertifiedOctober 8, 2025
✔ NPI 1164631495 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialistOther Service Providers
Taxonomy Code174400000X
Definition
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.
4801 WELDON SPRING PKWY STE 300, Weldon Spring, MO 63304

Secondary Practice Location 1

Location 12025 S Brentwood Blvd Ste 209Brentwood, MO 63144-1851 · Phone (636) 949-5760 · Fax (866) 440-9231

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

St. Charles Psychiatric Associates, Inc. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

12

Medicare enrollment records show 12 clinicians reassign Medicare billing to St. Charles Psychiatric Associates, Inc., which bills Medicare for the services they deliver. Of these, 5 practice at this address. They are listed nearest first.

Clinicians by Medicare Specialty 3

Nurse Practitioner9
Psychiatry2
Certified Clinical Nurse Specialist (CNS)1

Clinicians, nearest first (12)

Nurse Practitioner
NPI 1962166959
4801 WELDON SPRING PKWY STE 300
Weldon Spring, MO 63304
(636) 949-3894
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1194271163
4801 WELDON SPRING PKWY STE 300
Weldon Spring, MO 63304
(636) 949-5760
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1346090834
4801 WELDON SPRING PKWY # 300
Weldon Spring, MO 63304
(636) 949-5760
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1033260013
4801 WELDON SPRING PKWY # 300
Weldon Spring, MO 63304
(636) 949-5760
✔ PECOSSame address
Nurse Practitioner
NPI 1154895308
4801 WELDON SPRING PKWY # 300
Weldon Spring, MO 63304
(636) 949-5760
✔ PECOS✔ Accepts MedicareSame address
Psychiatry
NPI 1215933379
330 1ST CAPITOL DR STE 390
Saint Charles, MO 63301
(636) 949-5760
✔ PECOS✔ Accepts Medicare11 mi
Nurse Practitioner
NPI 1720806326
2025 S BRENTWOOD BLVD STE 209
Brentwood, MO 63144
(636) 949-5760
✔ PECOS✔ Accepts Medicare19 mi
Nurse Practitioner
NPI 1548527997
2025 S BRENTWOOD BLVD STE 209
Brentwood, MO 63144
(636) 949-5760
✔ PECOS✔ Accepts Medicare19 mi
Psychiatry
NPI 1609130061
1 CHILDRENS PL DIV CHILD AND ADOLESCENT PSYCHIATRY
Saint Louis, MO 63110
(314) 286-1700
✔ PECOS✔ Accepts Medicare23 mi
Certified Clinical Nurse Specialist (CNS)
NPI 1477684009
4 HICKORY RIDGE RD STE 600
Hillsboro, MO 63050
(636) 481-6040
✔ PECOS29 mi
Nurse Practitioner
NPI 1669228920
1010 W COLUMBIA ST
Farmington, MO 63640
(573) 218-6792
✔ PECOS66 mi
Nurse Practitioner
NPI 1518555283
11335 NE 122ND WAY
Kirkland, WA 98034
(206) 793-7168
✔ PECOS1,694 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 26D2047264

St Charles Psychiatric Associates · Saint Charles, MO
Active · expires Sep 19, 2028
CLIA Number26D2047264
Laboratory TypePhysician Office
Certificate Effective DateSeptember 20, 2026
Certificate Expiration DateSeptember 19, 2028
Laboratory DirectorGreg Mattingly
Laboratory Phone(636) 946-8032
Laboratory LocationSt Charles Psychiatric Associates4801 Weldon Spring Parkway Suite 300, Saint Charles, MO 63304
CLIA data matches this NPI record on: Name
This certificate is issued to a laboratory to perform only waived tests.

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 St. Charles Psychiatric Associates, Inc.'s NPI number?

The NPI number for St. Charles Psychiatric Associates, Inc. is 1164631495. It was assigned to this organization in the NPPES registry on May 22, 2007.

Where is St. Charles Psychiatric Associates, Inc. located?

St. Charles Psychiatric Associates, Inc. is located at 4801 Weldon Spring Pkwy Ste 300, Weldon Spring, MO 63304. The listed phone number is (636) 949-5760.

What is St. Charles Psychiatric Associates, Inc.'s specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Is St. Charles Psychiatric Associates, Inc. enrolled in Medicare?

Yes. St. Charles Psychiatric Associates, Inc. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through St. Charles Psychiatric Associates, Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 12 clinicians in 3 Medicare specialties reassign their Medicare billing to St. Charles Psychiatric Associates, Inc.. A 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 the clinician's services. The largest specialties are Nurse Practitioner (9), Psychiatry (2) and Certified Clinical Nurse Specialist (CNS) (1). Of these, 5 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does St. Charles Psychiatric Associates, Inc. hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 26D2047264) is associated with this NPI, valid through September 19, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

What insurance does St. Charles Psychiatric Associates, Inc. accept?

Health plans from Anthem Blue Cross and Blue Shield list St. Charles Psychiatric Associates, Inc. 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 St. Charles Psychiatric Associates, Inc. was last updated on October 8, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.