Marissa Simko, FNP
NPI 1386217149 · Nurse Practitioner · Berkeley, CA
Enrolled with Medicare as Order and Referring Only - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marissa Simko, FNP is a Nurse Practitioner provider in Berkeley, CA (NPI 1386217149).
Provider details
- NPI number
- 1386217149
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- No
- License
- 95027057 (CA)
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
4 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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
Registry dates
- Enumerated
- 2021-07-20
- Last updated
- 2026-03-10
- Certified
- 2026-03-10
Frequently asked questions
- What is Marissa Simko's NPI number?
- Marissa Simko's National Provider Identifier (NPI) is 1386217149, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marissa Simko's specialty?
- Marissa Simko is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Marissa Simko located?
- Marissa Simko's practice location on file with NPPES is 2344 6th St, Berkeley, CA 94710-2412.
- What is Marissa Simko's phone number?
- The practice phone number listed in the NPPES registry for Marissa Simko is (000) 000-0000.
- Does Marissa Simko accept Medicare?
- Marissa Simko is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marissa Simko's NPI active?
- Yes — Marissa Simko's NPI (1386217149) is active in the NPPES registry as of the last update on 2026-03-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.