COLLEEN ANN GRINBERG LCSW
NPI 1689421075
Social Worker - Clinical in Austin, TX
About Colleen Ann Grinberg Lcsw NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
COLLEEN ANN GRINBERG LCSW (NPI 1689421075) is an individual clinical provider in Austin, Texas, licensed in Texas (103416) and active in the NPI registry since May 2024. She is enrolled in Medicare PECOS and is a graduate of Other (2020).
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)
Colleen Ann Grinberg Lcsw is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Colleen Grinberg reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Austin, TX 78705
- Reassigned Medicare billing, Texas enrollment
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 78705 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.
AUSTIN, TX 78705
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 Colleen Grinberg's NPI number?
The NPI number for Colleen Grinberg is 1689421075. It was assigned to this individual provider in the NPPES registry on May 2, 2024.
Where is Colleen Grinberg located?
Colleen Grinberg practices at 2911 Medical Arts St Ste 9, Austin, TX 78705. The listed phone number is (210) 542-6001.
What is Colleen Grinberg's specialty?
The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.
Is Colleen Grinberg enrolled in Medicare?
Yes. Colleen Grinberg is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Colleen Grinberg's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Colleen Grinberg reassigns Medicare benefits to Twilight Bloom Counseling PLLC (Austin, TX). 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 Colleen Grinberg's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Colleen Grinberg accept?
Health plans from Blue Cross and Blue Shield of Texas list Colleen Grinberg 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 Colleen Grinberg was last updated on March 31, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Colleen Ann Grinberg, LCSW · NPI 1689421075
Clinical provider in Austin, Texas. Individual provider, active in the CMS NPPES registry since May 2, 2024.
## Identity
- **NPI:** 1689421075 (Entity type: Individual)
- **Enumerated:** May 2, 2024
- **Primary specialty:** Social Worker - Clinical · taxonomy 1041C0700X
- **State license:** 103416 (Texas)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 2911 MEDICAL ARTS ST STE 9, Austin, TX 78705-3302
- **Phone:** (210) 542-6001
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Twilight Bloom Counseling PLLC (NPI 1275424640, Austin, TX), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** March 31, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1689421075) · Data from the CMS NPPES public registry.