Dian Koelzer, FNP
NPI 1609979772 · Family Nurse Practitioner · Folsom, CA
Dian Koelzer, FNP is a Family Nurse Practitioner provider in Folsom, CA (NPI 1609979772).
Provider details
- NPI number
- 1609979772
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- No
- License
- 499424 (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
19 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
- 2006-09-06
- Last updated
- 2007-07-11
Frequently asked questions
- What is Dian Koelzer's NPI number?
- Dian Koelzer's National Provider Identifier (NPI) is 1609979772, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Dian Koelzer's specialty?
- Dian Koelzer is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Dian Koelzer located?
- Dian Koelzer's practice location on file with NPPES is 2155 Iron Point Rd, Folsom, CA 95630-8707.
- What is Dian Koelzer's phone number?
- The practice phone number listed in the NPPES registry for Dian Koelzer is (916) 817-5659.
- Is Dian Koelzer's NPI active?
- Yes — Dian Koelzer's NPI (1609979772) is active in the NPPES registry as of the last update on 2007-07-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.