John Nielson, FNP
NPI 1205152907 · Family Nurse Practitioner · Thornton, CO
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Nielson, FNP is a Family Nurse Practitioner provider in Thornton, CO (NPI 1205152907).
Provider details
- NPI number
- 1205152907
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Male
- Sole proprietor
- No
- License
- 103015 (CO)
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
16 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
- 2010-04-20
- Last updated
- 2019-09-17
Frequently asked questions
- What is John Nielson's NPI number?
- John Nielson's National Provider Identifier (NPI) is 1205152907, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Nielson's specialty?
- John Nielson is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is John Nielson located?
- John Nielson's practice location on file with NPPES is 1551 Milky Way, Thornton, CO 80260-4713.
- What is John Nielson's phone number?
- The practice phone number listed in the NPPES registry for John Nielson is (303) 426-4525.
- Does John Nielson accept Medicare?
- John Nielson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Nielson's NPI active?
- Yes — John Nielson's NPI (1205152907) is active in the NPPES registry as of the last update on 2019-09-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.