SANDRA L MOSTACCIO-SWEENEY M.D.
NPI 1689695199
Emergency Medicine in Dallas, TX
About Sandra L Mostaccio-sweeney M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SANDRA L MOSTACCIO-SWEENEY M.D. (NPI 1689695199) is an individual emergency medicine provider in Dallas, Texas, licensed in Texas (N4603) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS, is affiliated with Hca Florida South Shore Hospital, and maintains a secondary practice location in Augusta.
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Secondary Practice Location 1
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 and accepts Medicare assignment
Sandra L Mostaccio-sweeney 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 Reassignments
9Medicare enrollment records show Sandra Mostaccio-sweeney reassigns Medicare billing to 9 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Gonzales, TX 78629
- Reassigned Medicare billing, Texas enrollment
- 430 clinicians in this Medicare group
San Antonio, TX 78249
- Reassigned Medicare billing, Texas enrollment
- 379 clinicians in this Medicare group
Lubbock, TX 79401
- Reassigned Medicare billing, Texas enrollment
- 1,439 clinicians in this Medicare group
Amarillo, TX 79106
- Reassigned Medicare billing, Texas enrollment
- 150 clinicians in this Medicare group
Las Cruces, NM 88011
- Reassigned Medicare billing, New Mexico enrollment
- 238 clinicians in this Medicare group
Steamboat Springs, CO 80487
- Reassigned Medicare billing, Colorado enrollment
- Also billed through NPI 1063418424 (Colorado)
- 74 clinicians in this Medicare group
Aventura, FL 33180
- Reassigned Medicare billing, Florida enrollment
- 1,912 clinicians in this Medicare group
Augusta, ME 04330
- Reassigned Medicare billing, Maine enrollment
- 978 clinicians in this Medicare group
Sedro Woolley, WA 98284
- Reassigned Medicare billing, Washington enrollment
- 139 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.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Hca Florida South Shore Hospital
Acute Care Hospitals · Sun City Center, FLMaine General Medical Center
Acute Care Hospitals · Augusta, MENorthwest Texas Hospital
Acute Care Hospitals · Amarillo, TXBaptist Neighborhood Hospital Thousand Oaks
Acute Care Hospitals · San Antonio, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 75201 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.
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
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 Sandra Mostaccio-sweeney's NPI number?
The NPI number for Sandra Mostaccio-sweeney is 1689695199. It was assigned to this individual provider in the NPPES registry on July 21, 2006. The provider is also known as Sandra L Mostaccio M.D..
Where is Sandra Mostaccio-sweeney located?
Sandra Mostaccio-sweeney practices at 1717 Main St Suuite 5200, Dallas, TX 75201. The listed phone number is (800) 527-2145.
What is Sandra Mostaccio-sweeney's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Sandra Mostaccio-sweeney enrolled in Medicare?
Yes. Sandra Mostaccio-sweeney 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 organizations bill Medicare for Sandra Mostaccio-sweeney's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sandra Mostaccio-sweeney reassigns Medicare benefits to 9 organizations: Victoria Emergency Partners LLC (Gonzales, TX), Third Coast Emergency Physicians Southwest PA (San Antonio, TX), Concord Medical Group Of Texas PLLC (Lubbock, TX), Em Alliance Texas, PLLC (Amarillo, TX), Las Cruces Hb Medical Services LLC (Las Cruces, NM) and 4 more organizations, listed in the Medicare section above. 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 Sandra Mostaccio-sweeney's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Sandra Mostaccio-sweeney accept?
Health plans from Blue Cross and Blue Shield of Texas, Imperial Insurance Companies, Inc., Molina Healthcare and Oscar Health Maintenance Organization of Florida list Sandra Mostaccio-sweeney 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.
Is Sandra Mostaccio-sweeney affiliated with any hospitals?
According to CMS data, Sandra Mostaccio-sweeney is affiliated with Hca Florida South Shore Hospital, Maine General Medical Center, Northwest Texas Hospital and Baptist Neighborhood Hospital Thousand Oaks.
When was this NPI record last updated?
The NPPES record for Sandra Mostaccio-sweeney was last updated on July 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Sandra L Mostaccio-Sweeney, M.D. · NPI 1689695199
Emergency Medicine physician in Dallas, Texas. Individual provider, active in the CMS NPPES registry since July 21, 2006.
## Identity
- **NPI:** 1689695199 (Entity type: Individual)
- **Enumerated:** July 21, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** N4603 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 1717 MAIN ST, SUUITE 5200, Dallas, TX 75201-4612
- **Phone:** (800) 527-2145
## 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:** 9 organizations under Medicare reassignment (form CMS-855R): Victoria Emergency Partners LLC (NPI 1164770996, Gonzales, TX); Third Coast Emergency Physicians Southwest PA (NPI 1497793475, San Antonio, TX); Concord Medical Group Of Texas PLLC (NPI 1750790762, Lubbock, TX); Em Alliance Texas, PLLC (NPI 1902621329, Amarillo, TX); Las Cruces Hb Medical Services LLC (NPI 1598446171, Las Cruces, NM); and 4 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1993
## Record status
- **NPPES last updated:** July 28, 2026
- **Other identifiers:** Other ME0070000 (FL); Other N4603 (TX); Other DR75934 (CO); and 1 more
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Source: [NPI Profile](https://npiprofile.com/npi/1689695199) · Data from the CMS NPPES public registry.