S MARSHAL ISAACS MD
NPI 1386688281
Emergency Medicine in Dallas, TX
About S Marshal Isaacs Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
S MARSHAL ISAACS MD (NPI 1386688281) is an individual emergency medicine provider in Dallas, Texas, licensed in Texas (M4825) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 4
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)
S Marshal Isaacs Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show S Marshal Isaacs reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Dallas, TX 75390
- Reassigned Medicare billing, Texas enrollment
- 5,299 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 75390 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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 75390
DALLAS, TX 75390
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 S Marshal Isaacs's NPI number?
The NPI number for S Marshal Isaacs is 1386688281. It was assigned to this individual provider in the NPPES registry on June 15, 2006.
Where is S Marshal Isaacs located?
S Marshal Isaacs practices at 5323 Harry Hines Blvd Mc 8579, Dallas, TX 75390. The listed phone number is (214) 648-6739.
What is S Marshal Isaacs's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is S Marshal Isaacs enrolled in Medicare?
Yes. S Marshal Isaacs is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for S Marshal Isaacs's services?
According to the CMS Revalidation Reassignment List (October 2026 release), S Marshal Isaacs reassigns Medicare benefits to University Of Texas Southwestern Medical Center At Dallas (Dallas, 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 S Marshal Isaacs's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does S Marshal Isaacs accept?
Health plans from Blue Cross and Blue Shield of Texas list S Marshal Isaacs 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 S Marshal Isaacs was last updated on October 14, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.
# S Marshal Isaacs, MD · NPI 1386688281
Emergency Medicine physician in Dallas, Texas. Individual provider, active in the CMS NPPES registry since June 15, 2006.
## Identity
- **NPI:** 1386688281 (Entity type: Individual)
- **Enumerated:** June 15, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** M4825 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 5323 HARRY HINES BLVD, MC 8579, Dallas, TX 75390-8579
- **Phone:** (214) 648-6739 · **Fax:** (214) 648-8423
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** University Of Texas Southwestern Medical Center At Dallas (NPI 1083669766, Dallas, TX), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** October 14, 2009
- **Other identifiers:** Medicare ID-Type Unspecified OOG719350 (CA); Medicare UPIN F18798; Medicaid OOG719350 (CA); and 1 more
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Source: [NPI Profile](https://npiprofile.com/npi/1386688281) · Data from the CMS NPPES public registry.