NPPES file of Aug 9, 2026

Holly Mergist

Audiologist · Englewood, CO

Holly Mergist is an audiologist with a practice address in Englewood, Colorado, and NPI 1407588585, issued on Jun 28, 2022. Check the license with the Colorado board that licenses this profession; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1407588585
Name
Holly Mergist
Primary taxonomy
Audiologist 231H00000X
Practice location
601 E Hampden Ave Ste 430, Englewood, CO 80113
Phone
(303) 783-9220
Enumerated
Jun 28, 2022
Record last updated
Jun 30, 2022
Medicare enrollment
Enrolled (PECOS I20230913003424); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 601 E Hampden Ave Ste 430

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

  1. Sian Halvorsen, AUDAudiologist1386210151
  2. James Lupo, M.D.Otology & Neurotology Physician1700058468
  3. Peyton Mohr, AUDAudiologist-Hearing Aid Fitter1205511805
  4. Dennis Ries, AUDAudiologist1730577891

Verify Holly Mergist in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Colorado board licenses this professionCheck 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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. David C Kelsall MD PCEnglewood, CO

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Holly Mergist among 646 audiologist records in Colorado

Holly Mergist is one of 646 audiologist records with a practice address in Colorado. 29% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 86% of them.

  • NPI issued2022 · 86% of these records are older, 11% newer
  • In a Medicare fileYes · 29% of these records are
  • In the CMS Doctors and Clinicians fileYes · 31% of these records are
  • Graduated2022 · median 2016 among the 202 with a school on file
  • Record last updated2022 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 231H00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Audiologist providers in Colorado

There are 646 audiologist records in Colorado.

The 8 audiologist records with the nearest ZIP codes

  1. Chelsea Bega, AUDEnglewood, CO 801131720518426
  2. Marc Bennett, AU.D.Englewood, CO 801131043581325
  3. Allison Biever, AUDEnglewood, CO 801131336313691
  4. Katharine Breithart, AU.D.Englewood, CO 801131275759342
  5. Lisa Evans-Smith, AU.D.Englewood, CO 801131558571422
  6. Aniellia Grabowski, AU.D.Englewood, CO 801131932826583
  7. Sian Halvorsen, AUDEnglewood, CO 801131386210151
  8. Danielle Jenkins, AUDEnglewood, CO 801131740954593

Common questions

What is Holly Mergist's NPI number?

Holly Mergist's National Provider Identifier (NPI) is 1407588585, issued on Jun 28, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Holly Mergist located?

The NPPES record lists a practice address at 601 E Hampden Ave Ste 430, Englewood, CO, 80113. Phone: (303) 783-9220. Providers update this record themselves, so call before visiting.

How can I verify Holly Mergist's license?

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. Medicare files from data.cms.gov. 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.