MARISSA IRENE JOHNSON PA-C
NPI 1447703525
Physician Assistant in Boston, MA
About Marissa Irene Johnson Pa-c NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARISSA IRENE JOHNSON PA-C (NPI 1447703525) is an individual physician assistant in Boston, Massachusetts, licensed in Massachusetts (PA9454) and active in the NPI registry since July 2016. She is enrolled in Medicare PECOS, is affiliated with Northeast Hospital Corporation, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
Secondary Practice Locations 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Marissa Irene Johnson Pa-c 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.
Areas of Expertise CMS Part B claims 2
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Northeast Hospital Corporation
Acute Care Hospitals · Beverly, MABeth Israel Deaconess Medical Center
Acute Care Hospitals · Boston, MALahey Hospital & Medical Center, Burlington
Acute Care Hospitals · Burlington, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02215 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
BOSTON, MA 02215
BOSTON, MA 02215
BOSTON, MA 02215
BOSTON, MA 02215
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 Marissa Johnson's NPI number?
The NPI number for Marissa Johnson is 1447703525. It was assigned to this individual provider in the NPPES registry on July 26, 2016.
Where is Marissa Johnson located?
Marissa Johnson practices at 450 Brookline Ave, Boston, MA 02215. The listed phone number is (617) 278-0055.
What is Marissa Johnson's specialty?
The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.
Is Marissa Johnson enrolled in Medicare?
Yes. Marissa Johnson 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.
Is Marissa Johnson affiliated with any hospitals?
According to CMS data, Marissa Johnson is affiliated with Northeast Hospital Corporation, Beth Israel Deaconess Medical Center and Lahey Hospital & Medical Center, Burlington.
When was this NPI record last updated?
The NPPES record for Marissa Johnson was last updated on June 26, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.
