Mari Ernst, NP
NPI 1801182217 · Family Nurse Practitioner · Littleton, CO
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mari Ernst, NP is a Family Nurse Practitioner provider in Littleton, CO (NPI 1801182217).
Provider details
- NPI number
- 1801182217
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- RN.0170649 (CO)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 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 (2)
- 3515 S Delaware StEnglewood, CO 80110-3529Phone: (303) 788-0782Fax: (303) 762-1583
- 221 E Hampden AveEnglewood, CO 80113-2620Phone: (303) 789-2251Fax: (303) 789-2505
Registry dates
- Enumerated
- 2011-06-23
- Last updated
- 2023-11-15
- Certified
- 2023-11-15
Frequently asked questions
- What is Mari Ernst's NPI number?
- Mari Ernst's National Provider Identifier (NPI) is 1801182217, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mari Ernst's specialty?
- Mari Ernst is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mari Ernst located?
- Mari Ernst's practice location on file with NPPES is 6507 S Santa Fe Dr, Littleton, CO 80120-2910.
- What is Mari Ernst's phone number?
- The practice phone number listed in the NPPES registry for Mari Ernst is (303) 730-8858.
- Does Mari Ernst accept Medicare?
- Mari Ernst is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mari Ernst's NPI active?
- Yes — Mari Ernst's NPI (1801182217) is active in the NPPES registry as of the last update on 2023-11-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.