NPPES file of Aug 9, 2026

Mari F. Ernst, NP

Family Nurse Practitioner · Littleton, CO

Mari F. Ernst, NP is a family nurse practitioner with a practice address in Littleton, Colorado, and NPI 1801182217, issued on Jun 23, 2011. Check the license (Colorado APN.0990142-NP, 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.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1801182217
Name
Mari F. Ernst
Credential
NP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License numbers
APN.0990142-NP CO
RN.0170649 CO
Self-reported in NPPES; status is on the state search
Practice location
6507 S Santa FE Dr, Littleton, CO 80120
Phone
(303) 730-8858
Enumerated
Jun 23, 2011
Record last updated
Nov 15, 2023
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest family nurse practitioner records → All 3,492 in Colorado → Look up another NPI →

Also registered at 6507 S Santa FE Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Malia Addison, MDPsychiatry Physician1043871320
  2. Ona Ahumada, NPNurse Practitioner1790074763
  3. Theodore Anfinson, M.D.Psychiatry Physician1992838718
  4. Valarie Barros, LPC, LACProfessional Counselor1750983250
  5. Heather BentonProfessional Counselor1447892740
  6. Jordan BierbrauerClinical Social Worker1811569866

Verify Mari F. Ernst in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Colorado board licenses this profession
    Search for license APN.0990142-NP    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Colorado license search

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Mari F. Ernst among 3,492 family nurse practitioner records in Colorado

Mari F. Ernst, NP 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 2011, is newer than 21% of them.

  • NPI issued2011 · 21% of these records are older, 77% newer
  • In a Medicare fileNo · 73% of these records are
  • In the CMS Doctors and Clinicians fileNo · 56% of these records are
  • Record last updated2023 · 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).

103 family nurse practitioner records list a practice address in Littleton

They are 103 of the 3,918 NPPES records with a practice address in Littleton, 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 Littleton → Family Nurse Practitioner nationwide →

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Shanda Bartel, NPLittleton, CO 801201407278740
  2. Ann Beetham, N.P.Littleton, CO 801201336421296
  3. Margaret Bernard, NPLittleton, CO 801201447624978
  4. Laurie Burns, FNP-CLittleton, CO 801201134560311
  5. Elizabeth Caldwell, FNPLittleton, CO 801201932545829
  6. Amanda Daniel, MSN, APRN, NP-C, CPNLittleton, CO 801201871915322
  7. Whitney Groth, NPLittleton, CO 801201962648048
  8. Nancyann Harrod, A.R.N.P.Littleton, CO 801201811299209

Common questions

What is Mari F. Ernst, NP's NPI number?

Mari F. Ernst, NP's National Provider Identifier (NPI) is 1801182217, issued on Jun 23, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Mari F. Ernst, NP located?

The NPPES record lists a practice address at 6507 S Santa FE Dr, Littleton, CO, 80120. Phone: (303) 730-8858. Providers update this record themselves, so call before visiting.

How can I verify Mari F. Ernst, NP's license?

NPPES lists Colorado license number APN.0990142-NP, 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.