Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Sandra L Mostaccio-Sweeney, MD

Individual provider Internal Medicine Physician · NPI 1689695199

Sandra L Mostaccio-Sweeney, MD is an Internal Medicine in Dallas, Texas. Qualified in 1993, 33 years ago. Practices with Em Alliance Texas PLLC, a 89-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Maine, Texas and Washington.

Years since qualifying
33
Licensed in
ME, TX, WA
In the registry since
2006
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1717 Main St Suuite 5200
Dallas, TX 75201-4612
Phone: (800) 527-2145
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 35 Medical Center Pkwy, Augusta, ME 04330-8160 — (207) 248-5000

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence N4603 (TX)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD60166404 (WA)
Emergency Medicine Physician Taxonomy 207P00000X · Licence MD30717 (ME)

Record details

NPI number1689695199
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 21, 2006
Last updated in NPPESJuly 28, 2026
Certification dateJuly 28, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1993 (33 years in practice)
Group practice Em Alliance Texas Pllc — 89 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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