NPPES file of Aug 9, 2026

Clifford Olson

Audiologist-Hearing Aid Fitter · Phoenix, AZ

Clifford Olson is an audiologist-hearing aid fitter with a practice address in Phoenix, Arizona, and NPI 1679022552, issued on Oct 3, 2016. Check the license (Arizona DA9937, as entered in NPPES) with the Arizona 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
1679022552
Name
Clifford Olson
Primary taxonomy
Audiologist-Hearing Aid Fitter 237600000X
License number
DA9937 AZ
Self-reported in NPPES; status is on the state search
Practice location
4045 E Union Hills Dr Ste D128, Phoenix, AZ 85050
Phone
(602) 877-0000
Enumerated
Oct 3, 2016
Record last updated
Dec 29, 2022
Fax
(623) 900-7877
Medicare enrollment
Enrolled (PECOS I20170405000782); 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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8 nearest audiologist-hearing aid fitter records → All 111 in Arizona → Look up another NPI →

Also registered at 4045 E Union Hills Dr Ste D128

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

  1. Kelsey Beck, AUDAudiologist1831874551
  2. Jena WingettAudiologist1538089529

Verify Clifford Olson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Arizona board licenses this profession
    Search for license DA9937    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 Arizona 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. Applied Hearing Solutions, LLCPhoenix, AZ

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

Clifford Olson among 111 audiologist-hearing aid fitter records in Arizona

Clifford Olson is one of 111 audiologist-hearing aid fitter records with a practice address in Arizona. 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 2016, is newer than 67% of them.

  • NPI issued2016 · 67% of these records are older, 31% newer
  • In a Medicare fileYes · 29% of these records are
  • In the CMS Doctors and Clinicians fileYes · 32% of these records are
  • Graduated2016 · median 2011 among the 36 with a school on file
  • Record last updated2022 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 237600000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Audiologist-Hearing Aid Fitter providers in Arizona

There are 111 audiologist-hearing aid fitter records in Arizona.

All 111 in Arizona → Every provider in Phoenix → Audiologist-Hearing Aid Fitter nationwide →

The 8 audiologist-hearing aid fitter records with the nearest ZIP codes

  1. Lisa Huston, AU.D.Phoenix, AZ 850541699021048
  2. Jennifer Grosstick, AUDPhoenix, AZ 850281639120074
  3. Rachel Lowrance, AUD, CCC-APhoenix, AZ 850281972477057
  4. Jonathon LawrencePhoenix, AZ 850241295333110
  5. Ernest Garcia, MS, AUDIOLOGISTPhoenix, AZ 850211629240478
  6. Melissa Farrow, AU.DPhoenix, AZ 850201760742670
  7. Elizabeth Seidl, AU.D., CCC-APhoenix, AZ 850201861721573
  8. Elaine Slepak, AU.D, CCC-APhoenix, AZ 850181568612521

Common questions

What is Clifford Olson's NPI number?

Clifford Olson's National Provider Identifier (NPI) is 1679022552, issued on Oct 3, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Clifford Olson located?

The NPPES record lists a practice address at 4045 E Union Hills Dr Ste D128, Phoenix, AZ, 85050. Phone: (602) 877-0000. Providers update this record themselves, so call before visiting.

How can I verify Clifford Olson's license?

NPPES lists Arizona license number DA9937, as entered by the provider. Search the Arizona 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.

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.