John Carl Nielson, FNP
Family Nurse Practitioner · Thornton, CO
John Carl Nielson, FNP is a family nurse practitioner with a practice address in Thornton, Colorado, and NPI 1205152907, issued on Apr 20, 2010. Check the license (Colorado 103015, as entered in NPPES) with the Colorado board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- John Carl Nielson
- Credential
- FNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 103015 CO
Self-reported in NPPES; status is on the state search - Practice location
- 1551 Milky Way, Thornton, CO 80260
- Phone
- (303) 426-4525
- Enumerated
- Apr 20, 2010
- Record last updated
- Sep 17, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (303) 428-6381
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 3,492 in Colorado → Look up another NPI →
Also registered at 1551 Milky Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify John Carl Nielson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Colorado board licenses this profession
Search for license 103015Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
John Carl Nielson among 3,492 family nurse practitioner records in Colorado
John Carl Nielson, FNP is one of 3,492 family nurse practitioner records with a practice address in Colorado. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2010, is newer than 19% of them.
- NPI issued2010 · 19% of these records are older, 79% newer
- In a Medicare fileNo · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 56% of these records are
- Record last updated2019 · 37% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
51 family nurse practitioner records list a practice address in Thornton
They are 51 of the 2,234 NPPES records with a practice address in Thornton, and 3,492 family nurse practitioner records in Colorado. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 3,492 in Colorado → Every provider in Thornton → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Sofi Abraham, N.P.Thornton, CO 802601578097200
- Amanda Black, FNP-BCThornton, CO 802601609251073
- Jennifer Fightmaster, FNP-BCNorthglenn, CO 802601376843623
- Jennifer Fischer, RN, APN, FNP-BCThornton, CO 802601023679628
- Ilona Gomez, FNPThornton, CO 802601093441677
- Tamra Martinez, FNP-CThornton, CO 802601194515148
- Patricia WetherbeeFederal Heights, CO 802601033377080
- Patricia Gavan, FNPDenver, CO 802621851406128
Common questions
What is John Carl Nielson, FNP's NPI number?
John Carl Nielson, FNP's National Provider Identifier (NPI) is 1205152907, issued on Apr 20, 2010. An NPI identifies a provider in billing; it is not a license.
Where is John Carl Nielson, FNP located?
The NPPES record lists a practice address at 1551 Milky Way, Thornton, CO, 80260. Phone: (303) 426-4525. Providers update this record themselves, so call before visiting.
How can I verify John Carl Nielson, FNP's license?
NPPES lists Colorado license number 103015, as entered by the provider. Search the Colorado board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.