IndividualActive
Diane Ernst, ARNP
NPI 1285695999 · Nurse Practitioner · Decorah, IA
Diane Ernst, ARNP is a Nurse Practitioner provider in Decorah, IA (NPI 1285695999).
Provider details
- NPI number
- 1285695999
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- ARNP
- Sex
- Female
- Sole proprietor
- No
- License
- C044854 (IA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
901 Montgomery St
Decorah, IA 52101-2325
Phone: (563) 382-9671
Fax: (563) 382-4143
Street-level locationGet directions
Mailing address
901 Montgomery St
Decorah, IA 52101-2325
Registry dates
- Enumerated
- 2006-03-31
- Last updated
- 2008-09-23
Frequently asked questions
- What is Diane Ernst's NPI number?
- Diane Ernst's National Provider Identifier (NPI) is 1285695999, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diane Ernst's specialty?
- Diane Ernst is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Diane Ernst located?
- Diane Ernst's practice location on file with NPPES is 901 Montgomery St, Decorah, IA 52101-2325.
- What is Diane Ernst's phone number?
- The practice phone number listed in the NPPES registry for Diane Ernst is (563) 382-9671.
- Is Diane Ernst's NPI active?
- Yes — Diane Ernst's NPI (1285695999) is active in the NPPES registry as of the last update on 2008-09-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.