MS. GRETCHEN A NIETERS LPC
NPI 1750991410
Counselor - Professional in Saint Louis, MO
About Ms. Gretchen A Nieters Lpc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. GRETCHEN A NIETERS LPC (NPI 1750991410) is an individual professional provider in Saint Louis, Missouri, licensed in Missouri (2019006991) and active in the NPI registry since August 2020. She is enrolled in Medicare PECOS and is a graduate of Other (2018).
NPPES Registry Identity
Specialties & Licenses
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. Gretchen A Nieters Lpc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Gretchen Nieters reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Saint Louis, MO 63110
- Reassigned Medicare billing, Missouri enrollment
- 148 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.
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 Gretchen Nieters's NPI number?
The NPI number for Gretchen Nieters is 1750991410. It was assigned to this individual provider in the NPPES registry on August 6, 2020.
Where is Gretchen Nieters located?
Gretchen Nieters practices at 4444 Forest Park Ave Ste 2600, Saint Louis, MO 63108. The listed phone number is (314) 286-1700.
What is Gretchen Nieters's specialty?
The primary specialty registered for this NPI is Counselor, specializing in Professional, with taxonomy code 101YP2500X.
Is Gretchen Nieters enrolled in Medicare?
Yes. Gretchen Nieters is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Gretchen Nieters's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gretchen Nieters reassigns Medicare benefits to Washington University (Saint Louis, MO). 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 Gretchen Nieters's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gretchen Nieters accept?
Health plans from Oscar Insurance Company list Gretchen Nieters 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 Gretchen Nieters was last updated on May 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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. Gretchen A Nieters, LPC · NPI 1750991410
Professional provider in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since August 6, 2020.
## Identity
- **NPI:** 1750991410 (Entity type: Individual)
- **Enumerated:** August 6, 2020
- **Primary specialty:** Counselor - Professional · taxonomy 101YP2500X
- **State license:** 2019006991 (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:** Washington University (NPI 1003856592, Saint Louis, MO), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2018
## Record status
- **NPPES last updated:** May 4, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1750991410) · Data from the CMS NPPES public registry.