DR. MARGARET J TROST M.D.
NPI 1073717815
Pediatrics in Dallas, TX
About Dr. Margaret J Trost M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARGARET J TROST M.D. (NPI 1073717815) is an individual pediatrics provider in Dallas, Texas, licensed in California (A116363) and active in the NPI registry since June 2007. She is enrolled in Medicare PECOS and is a graduate of Medical College Of Wisconsin (2007).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Margaret J Trost M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Margaret Trost reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Los Angeles, CA 90027
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: Childrens Hospital Los Angeles Medical Group Inc
- 1,281 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 75235 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.
DALLAS, TX 75235
DALLAS, TX 75235
DALLAS, TX 75235
DALLAS, TX 75235
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 Margaret Trost's NPI number?
The NPI number for Margaret Trost is 1073717815. It was assigned to this individual provider in the NPPES registry on June 14, 2007.
Where is Margaret Trost located?
Margaret Trost practices at 1935 Motor St, Dallas, TX 75235. The listed phone number is (214) 456-7000.
What is Margaret Trost's specialty?
The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.
Is Margaret Trost enrolled in Medicare?
Yes. Margaret Trost is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Margaret Trost's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Margaret Trost reassigns Medicare benefits to Children's Hospital Los Angeles Medical Group, Inc. (Los Angeles, CA). 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 Margaret Trost'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 Margaret Trost was last updated on May 31, 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. Margaret J Trost, M.D. · NPI 1073717815
Pediatrics physician in Dallas, Texas. Individual provider, active in the CMS NPPES registry since June 14, 2007.
## Identity
- **NPI:** 1073717815 (Entity type: Individual)
- **Enumerated:** June 14, 2007
- **Primary specialty:** Pediatrics · taxonomy 208000000X
- **State license:** A116363 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1935 MOTOR ST, Dallas, TX 75235-7701
- **Phone:** (214) 456-7000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Children's Hospital Los Angeles Medical Group, Inc. (NPI 1265530653, Los Angeles, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Medical College Of Wisconsin, class of 2007
## Record status
- **NPPES last updated:** May 31, 2011
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Source: [NPI Profile](https://npiprofile.com/npi/1073717815) · Data from the CMS NPPES public registry.