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

Leisa Sierra Lord-Halvorson

Individual provider Physician Assistant · NPI 1942778394

Leisa Sierra Lord-Halvorson is a Physician Assistant in Boston, Massachusetts. Qualified in 2018, 8 years ago. Practices with Umass Memorial Medical Group Inc, a 2,467-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
8
Licensed in
MA
In the registry since
2018
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Practice location Address checks out

450 Brookline Ave
Boston, MA 02215-5450
Phone: (617) 632-3000
Fax: (617) 582-6021
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 157 Union St, Marlborough, MA 01752-1228 — (508) 486-6700
  • 55 Lake Ave N, Worcester, MA 01655-0001 — (508) 334-3550

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence PA7730 (MA)

Record details

NPI number1942778394
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedNovember 4, 2018
Last updated in NPPESMay 1, 2025
Certification dateMay 1, 2025

Medicare enrollment

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

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2018 (8 years in practice)
Group practice Umass Memorial Medical Group Inc — 2467 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

Other providers in Boston