DR. SHIRLEY N GRUEN PH D
NPI 1750464616
Psychologist - Clinical in Sugar Land, TX
About Dr. Shirley N Gruen Ph D NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. SHIRLEY N GRUEN PH D (NPI 1750464616) is an individual clinical provider in Sugar Land, Texas, licensed in Texas (21926) and active in the NPI registry since October 2006. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Shirley N Gruen Ph D is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Shirley Gruen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Antonio, TX 78240
- Reassigned Medicare billing, Texas enrollment
- 296 clinicians in this Medicare group
San Francisco, CA 94111
- Reassigned Medicare billing, Texas enrollment
- 106 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 77478 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 17
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SUGAR LAND, TX 77478
SUGAR LAND, TX 77478
SUGAR LAND, TX 77478
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 Shirley Gruen's NPI number?
The NPI number for Shirley Gruen is 1750464616. It was assigned to this individual provider in the NPPES registry on October 23, 2006.
Where is Shirley Gruen located?
Shirley Gruen practices at 101 Southwestern Blvd #109, Sugar Land, TX 77478. The listed phone number is (281) 491-5250.
What is Shirley Gruen's specialty?
The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.
Is Shirley Gruen enrolled in Medicare?
Yes. Shirley Gruen is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Shirley Gruen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Shirley Gruen reassigns Medicare benefits to 2 organizations: Deer Oaks Geriatric Services P C (San Antonio, TX) and Doctor On Demand Professionals P C (San Francisco, CA). 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 Shirley Gruen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Shirley Gruen was last updated on September 30, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 years 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.
# Dr. Shirley N Gruen, PH D · NPI 1750464616
Clinical provider in Sugar Land, Texas. Individual provider, active in the CMS NPPES registry since October 23, 2006.
## Identity
- **NPI:** 1750464616 (Entity type: Individual)
- **Enumerated:** October 23, 2006
- **Primary specialty:** Psychologist - Clinical · taxonomy 103TC0700X
- **State license:** 21926 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 101 SOUTHWESTERN BLVD, #109, Sugar Land, TX 77478-3668
- **Phone:** (281) 491-5250 · **Fax:** (281) 242-0707
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Deer Oaks Geriatric Services P C (NPI 1134169287, San Antonio, TX); Doctor On Demand Professionals P C (NPI 1174931448, San Francisco, CA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 30, 2011
- **Other identifiers:** Medicaid 0986101-01 (TX); Medicare ID-Type Unspecified 00GK85 (TX)
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Source: [NPI Profile](https://npiprofile.com/npi/1750464616) · Data from the CMS NPPES public registry.