NPPES file of Aug 9, 2026

Diane L. Hardersen, CADC

Addiction (Substance Use Disorder) Counselor · Norman, OK

Diane L. Hardersen, CADC is an addiction (substance use disorder) counselor with a practice address in Norman, Oklahoma, and NPI 1235251679, issued on Apr 5, 2007. Check the license with the Oklahoma 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
1235251679
Name
Diane L. Hardersen
Credential
CADC
Primary taxonomy
Addiction (Substance Use Disorder) Counselor 101YA0400X
Practice location
909 Alameda St, Norman, OK 73071
Phone
(405) 573-3926
Enumerated
Apr 5, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(405) 573-3939
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 addiction (substance use disorder) counselor records → All 1,323 in Oklahoma → Look up another NPI →

Also registered at 909 Alameda St

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

  1. Jan AdkinsMental Health Counselor1740914753
  2. Haylee Alaelua, BHCMIICase Manager/Care Coordinator1992680524
  3. Sarah Alexander, CPRSSPeer Specialist1003776402
  4. Jill Amos, BACase Manager/Care Coordinator1710024492
  5. Kaylee Andre, BHCMII, BHWC, CPRSSCase Manager/Care Coordinator1184355992
  6. Annette AndrewsCase Manager/Care Coordinator1891910147

Verify Diane L. Hardersen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Oklahoma 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 Oklahoma license search

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Diane L. Hardersen among 1,323 addiction (substance use disorder) counselor records in Oklahoma

Diane L. Hardersen, CADC is one of 1,323 addiction (substance use disorder) counselor records with a practice address in Oklahoma. 3% 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 2007, is newer than 3% of them.

  • NPI issued2007 · 3% of these records are older, 73% newer
  • In a Medicare fileNo · 3% of these records are
  • In the CMS Doctors and Clinicians fileNo · 4% of these records are
  • Record last updated2007 · 81% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 101YA0400X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

46 addiction (substance use disorder) counselor records list a practice address in Norman

They are 46 of the 4,245 NPPES records with a practice address in Norman, and 1,323 addiction (substance use disorder) counselor records in Oklahoma. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 1,323 in Oklahoma → Every provider in Norman → Addiction (Substance Use Disorder) Counselor nationwide →

The 8 addiction (substance use disorder) counselor records with the nearest ZIP codes

  1. Jeffrey Beed, LADC (CANDIDATE)Norman, OK 730711861703795
  2. Angela Brew, LADCNorman, OK 730711831481522
  3. David CunninghamNorman, OK 730711154403285
  4. Pricilla George, M.S.Norman, OK 730711932434644
  5. Rayge Johnson, BASWNorman, OK 730711992032916
  6. Daniel Kavanaugh, CADCNorman, OK 730711952637886
  7. Megan LenhartNorman, OK 730711265695340
  8. Teresa Long, BA/CADCNorman, OK 730711831400969

Common questions

What is Diane L. Hardersen, CADC's NPI number?

Diane L. Hardersen, CADC's National Provider Identifier (NPI) is 1235251679, issued on Apr 5, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Diane L. Hardersen, CADC located?

The NPPES record lists a practice address at 909 Alameda St, Norman, OK, 73071. Phone: (405) 573-3926. Providers update this record themselves, so call before visiting.

How can I verify Diane L. Hardersen, CADC's license?

Search the Oklahoma 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.