MICHELLE RULLAN JOHNSON MD
NPI 1114285905
Internal Medicine - Geriatric Medicine in Cambridge, MA
About Michelle Rullan Johnson Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MICHELLE RULLAN JOHNSON MD (NPI 1114285905) is an individual geriatric medicine provider in Cambridge, Massachusetts, licensed in Massachusetts (265139) and active in the NPI registry since April 2012. She is enrolled in Medicare PECOS, is affiliated with Cambridge Health Alliance, and is a graduate of New York University School Of Medicine (2012).
NPPES Registry Identity
Specialties & Licenses 4
An internist who has special knowledge of the aging process and special skills in the diagnostic, therapeutic, preventive and rehabilitative aspects of illness in the elderly. This specialist cares for geriatric patients in the patient's home, the office, long-term care settings such as nursing homes and the hospital.
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
Michelle Rullan Johnson Md 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 6
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Cambridge Health Alliance
Acute Care Hospitals · Cambridge, MAWinchester Hospital
Acute Care Hospitals · Winchester, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02139 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Referred Medical Equipment & Supplies CMS DME claims 3
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
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 Michelle Johnson's NPI number?
The NPI number for Michelle Johnson is 1114285905. It was assigned to this individual provider in the NPPES registry on April 30, 2012.
Where is Michelle Johnson located?
Michelle Johnson practices at 119 Windsor St, Cambridge, MA 02139. The listed phone number is (617) 665-3600.
What is Michelle Johnson's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Geriatric Medicine, with taxonomy code 207RG0300X.
Is Michelle Johnson enrolled in Medicare?
Yes. Michelle 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 Michelle Johnson affiliated with any hospitals?
According to CMS data, Michelle Johnson is affiliated with Cambridge Health Alliance and Winchester Hospital.
When was this NPI record last updated?
The NPPES record for Michelle Johnson was last updated on December 19, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.
