Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Marissa Irene Johnson, PA-C

Individual provider Medical Physician Assistant · NPI 1447703525

Marissa Irene Johnson, PA-C is a Physician Assistant in Boston, Massachusetts. Qualified in 2015, 11 years ago. Practices with Lahey Clinic Inc, a 1,372-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Massachusetts and Maine.

Years since qualifying
11
Licensed in
MA, ME
In the registry since
2016
Specialties on file
2
What do these letters mean?
PA-C — Physician Assistant, Certified
A physician assistant who holds current national certification.

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Practice location Address checks out

450 Brookline Ave
Boston, MA 02215-5450
Phone: (617) 278-0055
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 41 Mall Rd, Burlington, MA 01805-6616 — (781) 744-8000
  • 489 State St, Bangor, ME 04401-6616 — (207) 973-7000

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence PA9454 (MA)
Medical Physician Assistant Taxonomy 363AM0700X · Licence PA1616 (ME)

Record details

NPI number1447703525
Entity typeIndividual (Type 1)
GenderFemale
Credentials PA-C
Sole proprietorNo
NPI enumeratedJuly 26, 2016
Last updated in NPPESJune 26, 2026
Certification dateJune 26, 2026

Medicare enrollment

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

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2015 (11 years in practice)
Group practice Lahey Clinic Inc — 1372 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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