NPPES file of Aug 9, 2026

Rick Lavern Mathiesen, CADC I

Addiction (Substance Use Disorder) Counselor · Portland, OR

Rick Lavern Mathiesen, CADC I is an addiction (substance use disorder) counselor with a practice address in Portland, Oregon, and NPI 1588172142, issued on Jan 17, 2018. Check the license (Oregon 17-11-20, as entered in NPPES) with the Oregon 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
1588172142
Name
Rick Lavern Mathiesen
Credential
CADC I
Primary taxonomy
Addiction (Substance Use Disorder) Counselor 101YA0400X
License number
17-11-20 OR
Self-reported in NPPES; status is on the state search
Practice location
10101 SW Barbur Blvd Ste 101, Portland, OR 97219
Phone
(503) 245-6262
Enumerated
Jan 17, 2018
Record last updated
Jan 17, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(503) 245-6263
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 4,037 in Oregon → Look up another NPI →

Also registered at 10101 SW Barbur Blvd Ste 101

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

  1. Craig ChanAddiction (Substance Use Disorder) Counselor1508226556
  2. Katharine Foster, CADC IAddiction (Substance Use Disorder) Counselor1366076754
  3. Brad Grier, CADC IAddiction (Substance Use Disorder) Counselor1962821439
  4. Vicki Hamilton, CADC IAddiction (Substance Use Disorder) Counselor1588083042
  5. Desiree Jones, CADC 1Addiction (Substance Use Disorder) Counselor1033757794
  6. Jacob Patterson, CADC IAddiction (Substance Use Disorder) Counselor1417376971

Verify Rick Lavern Mathiesen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Oregon board licenses this profession
    Search for license 17-11-20    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 Oregon 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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Rick Lavern Mathiesen among 4,037 addiction (substance use disorder) counselor records in Oregon

Rick Lavern Mathiesen, CADC I is one of 4,037 addiction (substance use disorder) counselor records with a practice address in Oregon. under 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 2018, is newer than 47% of them.

  • NPI issued2018 · 47% of these records are older, 48% newer
  • In a Medicare fileNo · under 1% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2018 · 53% 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 Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1,236 addiction (substance use disorder) counselor records list a practice address in Portland

They are 1,236 of the 42,088 NPPES records with a practice address in Portland, and 4,037 addiction (substance use disorder) counselor records in Oregon. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 4,037 in Oregon → Every provider in Portland → Addiction (Substance Use Disorder) Counselor nationwide →

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

  1. Kathleen Drake, CADC I NCAC IPortland, OR 972191437285202
  2. John Goforth, CADC IPortland, OR 972191659790111
  3. John Graves, CADC IPortland, OR 972191477913770
  4. Brad Grier, CADC IPortland, OR 972191962821439
  5. Vicki Hamilton, CADC IPortland, OR 972191588083042
  6. Steven Harris, CADC II, CDPPortland, OR 972191578923082
  7. Faith McDevitt, CADC IIPortland, OR 972191609236249
  8. Jacob Patterson, CADC IPortland, OR 972191417376971

Common questions

What is Rick Lavern Mathiesen, CADC I's NPI number?

Rick Lavern Mathiesen, CADC I's National Provider Identifier (NPI) is 1588172142, issued on Jan 17, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Rick Lavern Mathiesen, CADC I located?

The NPPES record lists a practice address at 10101 SW Barbur Blvd Ste 101, Portland, OR, 97219. Phone: (503) 245-6262. Providers update this record themselves, so call before visiting.

How can I verify Rick Lavern Mathiesen, CADC I's license?

NPPES lists Oregon license number 17-11-20, as entered by the provider. Search the Oregon 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.