Individual provider Active NPI

Malissa Marie Johnsen, CRNA

  • Certified Registered Nurse Anesthetist
  • Portland, ME
National Provider Identifier
1700220100
Registry record updated Sep 14, 2020
On this page

Key facts

NPPES NPI Registry
Primary specialty
Certified Registered Nurse AnesthetistTaxonomy code 367500000X
License
RNA203035 Issued in ME
Practice address
22 Bramhall St
Portland, ME 04102-3175
Phone
(207) 662-0111
NPI assigned
Apr 29, 2013
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 14, 2020

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Certified Registered Nurse Anesthetist 367500000X RNA203035 ME Primary

Addresses

Primary practice location

22 Bramhall St
Portland, ME 04102-3175

Mailing address

6 Harrison CT
Yarmouth, ME 04096-1543
Phone (503) 739-5900

Other practice location 1

1355 W Main St
Monroe, WA 98272-2022
Phone (360) 794-4011

Other names 1

  • Ms. Malissa Marie Collins Former name

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in ME

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20201104002695 ME Practitioner - Certified Registered Nurse Anesthetist (Crna) 7012327935 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Certified Registered Nurse Anesthetist (Crna)
Education
Other, 2020
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
MainehealthGroup PAC ID 7517860588, 2,616 clinicians
Kennebec Anesthesia Associates PAGroup PAC ID 8325027428, 36 clinicians

Practice addresses (Care Compare)

22 Bramhall St
Portland, ME 04102-3134
Phone (207) 885-9905

35 Medical Ctr Pkwy
Suite 201
Augusta, ME 04330-8160
Phone (207) 620-1136

84 Campus Dr
Scarborough, ME 04074-7133
Phone (207) 396-7000

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
97.93 of 100Reported as apm
Quality
83.31
Promoting interoperability
100
Improvement activities
40

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
RNA203035MEMDCertified Registered Nurse Anesthetist

Practice roles

OrganizationSpecialtyStatusNew patients
Kennebec Anesthesia Associates, P.a. CurrentSince Feb 10, 2025 Accepting new patients
Mainehealth CurrentSince Oct 5, 2020 Accepting new patients
Mainehealth CurrentSince Oct 5, 2020 Accepting new patients
Mainehealth Current Accepting new patients

Locations

35 Medical Center Pkwy
Ste 201
Augusta, ME 04330
Phone (207) 620-1136

35 Medical Center Pkwy
#201
Augusta, ME 04330
Phone (207) 622-1959

22 Bramhall St
Portland, ME 04102
Phone (207) 662-2179

149 North St
Waterville, ME 04901
Phone (207) 622-1959

Organizations & group practices 4

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

Hospital & facility affiliations 36

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

View all 36

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1367193600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1600041600000",
    "number": "1700220100",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6 HARRISON CT",
            "city": "YARMOUTH",
            "state": "ME",
            "postal_code": "040961543",
            "telephone_number": "503-739-5900"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "22 BRAMHALL ST",
            "city": "PORTLAND",
            "state": "ME",
            "postal_code": "041023175",
            "telephone_number": "207-662-0111"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1355 W Main St",
            "address_purpose": "LOCATION",
            "city": "Monroe",
            "state": "WA",
            "postal_code": "982722022",
            "country_code": "US",
            "telephone_number": "360-794-4011",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "JOHNSEN",
        "first_name": "MALISSA",
        "middle_name": "MARIE",
        "name_prefix": "Mrs.",
        "credential": "CRNA",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2013-04-29",
        "last_updated": "2020-09-14",
        "certification_date": "2020-09-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "ME",
            "license": "RNA203035",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "MALISSA",
            "last_name": "COLLINS",
            "middle_name": "MARIE",
            "prefix": "MS.",
            "credential": "BSN",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

Other providers in Portland, ME

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 14, 2020; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.