NPPES file of Aug 9, 2026

Mika Leinonen, BA, CADC

Addiction (Substance Use Disorder) Counselor · Sioux City, IA

Mika Leinonen, BA, CADC is an addiction (substance use disorder) counselor with a practice address in Sioux City, Iowa, and NPI 1659008738, issued on Aug 8, 2022. Check the license (Iowa 20046, as entered in NPPES) with the Iowa 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
1659008738
Name
Mika Leinonen
Credential
BA, CADC
Primary taxonomy
Addiction (Substance Use Disorder) Counselor 101YA0400X
License number
20046 IA
Self-reported in NPPES; status is on the state search
Practice location
3500 W 4TH St, Sioux City, IA 51103
Phone
(712) 226-1800
Enumerated
Aug 8, 2022
Record last updated
Aug 8, 2022
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 971 in Iowa → Look up another NPI →

Also registered at 3500 W 4TH St

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

  1. Audrey Baird, CADCAddiction (Substance Use Disorder) Counselor1083141766
  2. Kelsey Bauer, PMHNPPsychiatric/Mental Health Nurse Practitioner1114681889
  3. Jill Blake, IADCAddiction (Substance Use Disorder) Counselor1447601133
  4. Carolyn Goodwin, CADCAddiction (Substance Use Disorder) Counselor1083076301
  5. Theodore Hostikka, M.S., LADC, IADCAddiction (Substance Use Disorder) Counselor1013644137
  6. Lori McKinlay, LISWClinical Social Worker1932561701

Verify Mika Leinonen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Iowa board licenses this profession
    Search for license 20046    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 Iowa 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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Mika Leinonen among 971 addiction (substance use disorder) counselor records in Iowa

Mika Leinonen, BA, CADC is one of 971 addiction (substance use disorder) counselor records with a practice address in Iowa. 1% 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 2022, is newer than 71% of them.

  • NPI issued2022 · 71% of these records are older, 23% newer
  • In a Medicare fileNo · 1% of these records are
  • In the CMS Doctors and Clinicians fileNo · 6% of these records are
  • 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 101YA0400X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

74 addiction (substance use disorder) counselor records list a practice address in Sioux City

They are 74 of the 1,486 NPPES records with a practice address in Sioux City, and 971 addiction (substance use disorder) counselor records in Iowa. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 971 in Iowa → Every provider in Sioux City → Addiction (Substance Use Disorder) Counselor nationwide →

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

  1. Audrey Baird, CADCSioux City, IA 511031083141766
  2. Jill Blake, IADCSioux City, IA 511031447601133
  3. Julie Burke, IADCSioux City, IA 511031467813477
  4. Carolyn Goodwin, CADCSioux City, IA 511031083076301
  5. Theodore Hostikka, M.S., LADC, IADCSioux City, IA 511031013644137
  6. Laura Meyer, CADCSioux City, IA 511031124559034
  7. Justin Sininger, CADCSioux City, IA 511031194203943
  8. Brianna Steffe, CADCSioux City, IA 511031508212085

Common questions

What is Mika Leinonen, BA, CADC's NPI number?

Mika Leinonen, BA, CADC's National Provider Identifier (NPI) is 1659008738, issued on Aug 8, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Mika Leinonen, BA, CADC located?

The NPPES record lists a practice address at 3500 W 4TH St, Sioux City, IA, 51103. Phone: (712) 226-1800. Providers update this record themselves, so call before visiting.

How can I verify Mika Leinonen, BA, CADC's license?

NPPES lists Iowa license number 20046, as entered by the provider. Search the Iowa 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.