Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Ernestina Opoku Twumwaa

Individual provider Physician Assistant · NPI 1720894900

Ernestina Opoku Twumwaa is a Physician Assistant in Boston, Massachusetts. Graduated from Tufts University School of Medicine in 2026. Practices with Southwest Medical Associates, LLC, a 325-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Massachusetts and New Mexico.

Trained at
Tufts University School of Medicine
Licensed in
MA, NM
In the registry since
2024
Specialties on file
2
Claim this listing Report a problem Suggest an edit

Practice location Address checks out

136 Harrison Ave
Boston, MA 02111-1817
Phone: (508) 239-9763
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 115 E 19th St, Roswell, NM 88201-5110 — (575) 622-7600

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence PA2026-0012 (NM)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X (MA)

Record details

NPI number1720894900
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedDecember 3, 2024
Last updated in NPPESMay 5, 2026
Certification dateMay 5, 2026

Medicare enrollment

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

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolTUFTS UNIVERSITY SCHOOL OF MEDICINE
Graduated 2026 (0 years in practice)
Group practice Southwest Medical Associates, Llc — 325 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Boston