Malissa Johnsen, CRNA
NPI 1700220100 · Certified Registered Nurse Anesthetist · Portland, ME
Enrolled with Medicare as Practitioner - Certified Registered Nurse Anesthetist (crna) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Malissa Johnsen, CRNA is a Certified Registered Nurse Anesthetist provider in Portland, ME (NPI 1700220100).
Provider details
- NPI number
- 1700220100
- Entity type
- Individual
- Primary specialty
- Certified Registered Nurse AnesthetistPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CRNA
- Sex
- Female
- Sole proprietor
- No
- License
- RNA203035 (ME)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
13 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (1)
- 1355 W Main StMonroe, WA 98272-2022Phone: (360) 794-4011
Registry dates
- Enumerated
- 2013-04-29
- Last updated
- 2020-09-14
- Certified
- 2020-09-14
Frequently asked questions
- What is Malissa Johnsen's NPI number?
- Malissa Johnsen's National Provider Identifier (NPI) is 1700220100, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Malissa Johnsen's specialty?
- Malissa Johnsen is listed in the NPPES registry with a primary specialty of Certified Registered Nurse Anesthetist (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Malissa Johnsen located?
- Malissa Johnsen's practice location on file with NPPES is 22 Bramhall St, Portland, ME 04102-3175.
- What is Malissa Johnsen's phone number?
- The practice phone number listed in the NPPES registry for Malissa Johnsen is (207) 662-0111.
- Does Malissa Johnsen accept Medicare?
- Malissa Johnsen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Malissa Johnsen's NPI active?
- Yes — Malissa Johnsen's NPI (1700220100) is active in the NPPES registry as of the last update on 2020-09-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.