NPPES file of Aug 9, 2026

Mathew Steven Karinen, LCSW

Clinical Social Worker · Reno, NV

Mathew Steven Karinen, LCSW is a clinical social worker with a practice address in Reno, Nevada, and NPI 1366132433, issued on May 11, 2023. Check the license (Nevada 12657-C, as entered in NPPES) with the Nevada 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
1366132433
Name
Mathew Steven Karinen
Credential
LCSW
Primary taxonomy
Clinical Social Worker 1041C0700X
License number
12657-C NV
Self-reported in NPPES; status is on the state search
Practice location
4600 Kietzke LN Ste N250, Reno, NV 89502
Phone
(775) 507-7222
Enumerated
May 11, 2023
Record last updated
Nov 25, 2025
Medicare enrollment
Enrolled (PECOS I20251226000840); 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 clinical social worker records → All 2,164 in Nevada → Look up another NPI →

Also registered at 4600 Kietzke LN Ste N250

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

  1. Elizabeth CalingaertClinical Social Worker1891665741
  2. Lydia CampanileSocial Worker1114601911
  3. Georgina Fontein, M.A. LMFTMarriage & Family Therapist1871837179
  4. Alejandra GomezClinical Social Worker1568027621
  5. Melisa Heckathorn, LMSWClinical Social Worker1588444590
  6. Lauren HuffmanMental Health Counselor1871351734

Verify Mathew Steven Karinen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Nevada board licenses this profession
    Search for license 12657-C    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 Nevada 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. Diana Wright Psy D LLCReno, NV

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

Mathew Steven Karinen among 2,164 clinical social worker records in Nevada

Mathew Steven Karinen, LCSW is one of 2,164 clinical social worker records with a practice address in Nevada. 12% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 84% of them.

  • NPI issued2023 · 84% of these records are older, 11% newer
  • In a Medicare fileYes · 12% of these records are
  • In the CMS Doctors and Clinicians fileYes · 19% of these records are
  • Graduated2023 · median 2015 among the 404 with a school on file
  • Record last updated2025 · 39% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1041C0700X and a Nevada practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

477 clinical social worker records list a practice address in Reno

They are 477 of the 11,565 NPPES records with a practice address in Reno, and 2,164 clinical social worker records in Nevada.

All 2,164 in Nevada → Every provider in Reno → Clinical Social Worker nationwide →

The 8 clinical social worker records with the nearest ZIP codes

  1. Angela Adami, MSWReno, NV 895021750455382
  2. Rachel Coffman, LCSWReno, NV 895021053428524
  3. Richard Dawson, LCSW, LADCReno, NV 895021902866676
  4. Linda FarrarReno, NV 895021922034610
  5. Joanne Fontana, LCSWReno, NV 895021881741619
  6. Patricia Hames, MSWReno, NV 895021407960560
  7. Patrick Hamilton, MSWReno, NV 895021861503484
  8. Sandra Lowery, LCSW, LCADCReno, NV 895021396746723

Common questions

What is Mathew Steven Karinen, LCSW's NPI number?

Mathew Steven Karinen, LCSW's National Provider Identifier (NPI) is 1366132433, issued on May 11, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Mathew Steven Karinen, LCSW located?

The NPPES record lists a practice address at 4600 Kietzke LN Ste N250, Reno, NV, 89502. Phone: (775) 507-7222. Providers update this record themselves, so call before visiting.

How can I verify Mathew Steven Karinen, LCSW's license?

NPPES lists Nevada license number 12657-C, as entered by the provider. Search the Nevada 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.