MS. SYDNEY NICOLE GRIMM LCSW
NPI 1619602620
Social Worker - Clinical in Saint Louis, MO
About Ms. Sydney Nicole Grimm Lcsw NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. SYDNEY NICOLE GRIMM LCSW (NPI 1619602620) is an individual clinical provider in Saint Louis, Missouri, licensed in Missouri (2025051824) and active in the NPI registry since July 2022. She is enrolled in Medicare PECOS and is a graduate of Washington University School Of Medicine (2021).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Ms. Sydney Nicole Grimm Lcsw is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Sydney Grimm reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saint Louis, MO 63110
- Reassigned Medicare billing, Missouri enrollment
- 148 clinicians in this Medicare group
Saint Louis, MO 63131
- Reassigned Medicare billing, Missouri enrollment
- 11 clinicians in this Medicare group
Saint Peters, MO 63376
- Reassigned Medicare billing, Missouri enrollment
- 7 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63108 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAINT LOUIS, MO 63108
SAINT LOUIS, MO 63108
SAINT LOUIS, MO 63108
SAINT LOUIS, MO 63108
SAINT LOUIS, MO 63108
SAINT LOUIS, MO 63108
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 Sydney Grimm's NPI number?
The NPI number for Sydney Grimm is 1619602620. It was assigned to this individual provider in the NPPES registry on July 22, 2022.
Where is Sydney Grimm located?
Sydney Grimm practices at 4444 Forest Park Ave Ste 2600, Saint Louis, MO 63108. The listed phone number is (314) 286-1700.
What is Sydney Grimm's specialty?
The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.
Is Sydney Grimm enrolled in Medicare?
Yes. Sydney Grimm is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Sydney Grimm's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sydney Grimm reassigns Medicare benefits to 3 organizations: Washington University (Saint Louis, MO), Washington University Clinical Associates Blue Fish LLC (Saint Louis, MO) and Wuca - Cloverleaf Pediatrics, LLC (Saint Peters, MO). Each 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 Sydney Grimm's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Sydney Grimm accept?
Health plans from Oscar Insurance Company list Sydney Grimm 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 Sydney Grimm was last updated on February 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Ms. Sydney Nicole Grimm, LCSW · NPI 1619602620
Clinical provider in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since July 22, 2022.
## Identity
- **NPI:** 1619602620 (Entity type: Individual)
- **Enumerated:** July 22, 2022
- **Primary specialty:** Social Worker - Clinical · taxonomy 1041C0700X
- **State license:** 2025051824 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 4444 FOREST PARK AVE, STE 2600, Saint Louis, MO 63108-2212
- **Phone:** (314) 286-1700 · **Fax:** (314) 396-8266
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Washington University (NPI 1003856592, Saint Louis, MO); Washington University Clinical Associates Blue Fish LLC (NPI 1972912087, Saint Louis, MO); Wuca - Cloverleaf Pediatrics, LLC (NPI 1710375928, Saint Peters, MO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Washington University School Of Medicine, class of 2021
## Record status
- **NPPES last updated:** February 17, 2026
- **Other identifiers:** Medicaid 490168558 (MO)
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Source: [NPI Profile](https://npiprofile.com/npi/1619602620) · Data from the CMS NPPES public registry.