DR. CLARISSA MICHALAK ACNP-AG
NPI 1346618394
Nurse Practitioner - Critical Care Medicine in Burlington, MA
About Dr. Clarissa Michalak Acnp-ag NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CLARISSA MICHALAK ACNP-AG (NPI 1346618394) is an individual critical care medicine provider in Burlington, Massachusetts, licensed in Massachusetts (RN2291327) and active in the NPI registry since September 2015. She is enrolled in Medicare PECOS, is affiliated with Maine Medical Center, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 3
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
Dr. Clarissa Michalak Acnp-ag 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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Maine Medical Center
Acute Care Hospitals · Portland, MEYork Hospital
Acute Care Hospitals · York, MEPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 01805 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.
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.
BURLINGTON, MA 01805
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 Clarissa Michalak's NPI number?
The NPI number for Clarissa Michalak is 1346618394. It was assigned to this individual provider in the NPPES registry on September 8, 2015.
Where is Clarissa Michalak located?
Clarissa Michalak practices at 41 Mall Rd, Burlington, MA 01805. The listed phone number is (781) 744-8000.
What is Clarissa Michalak's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Critical Care Medicine, with taxonomy code 363LC0200X.
Is Clarissa Michalak enrolled in Medicare?
Yes. Clarissa Michalak 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 Clarissa Michalak affiliated with any hospitals?
According to CMS data, Clarissa Michalak is affiliated with Maine Medical Center and York Hospital.
When was this NPI record last updated?
The NPPES record for Clarissa Michalak was last updated on August 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Clarissa Michalak, ACNP-AG · NPI 1346618394
Critical Care Medicine physician in Burlington, Massachusetts. Individual provider, active in the CMS NPPES registry since September 8, 2015.
## Identity
- **NPI:** 1346618394 (Entity type: Individual)
- **Enumerated:** September 8, 2015
- **Primary specialty:** Nurse Practitioner - Critical Care Medicine · taxonomy 363LC0200X
- **State license:** RN2291327 (Massachusetts)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 41 MALL RD, Burlington, MA 01805-0001
- **Phone:** (781) 744-8000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** Other, class of 2012
## Record status
- **NPPES last updated:** August 17, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1346618394) · Data from the CMS NPPES public registry.