NPPES file of Aug 9, 2026

Mary Mayfield, LCSW

Clinical Social Worker · Keizer, OR

Mary Mayfield, LCSW is a clinical social worker with a practice address in Keizer, Oregon, and NPI 1558775643, issued on Jun 17, 2014. Check the license (Oregon L12206, as entered in NPPES) with the Oregon 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
1558775643
Name
Mary Mayfield
Credential
LCSW
Primary taxonomy
Clinical Social Worker 1041C0700X
License number
L12206 OR
Self-reported in NPPES; status is on the state search
Practice location
5305 River RD N Ste B, Keizer, OR 97303
Phone
(503) 389-5360
Enumerated
Jun 17, 2014
Record last updated
Oct 8, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20211021000500); 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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Also registered at 5305 River RD N Ste B

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

  1. Emily Chavez-Nguyen, MA, LMHCAMental Health Counselor1548742125
  2. Rachel Costantino, M.ED., CCC-SLPSpeech-Language Pathologist1609270354
  3. Haley Doyle, MA, MFTAMarriage & Family Therapist1558986364
  4. Katia DuncanClinical Social Worker1922407840
  5. Angela GimenoCounselor1841883238
  6. Tundike Gore, DNP, PMHNP, FNPPsychiatric/Mental Health Nurse Practitioner1346681020

Verify Mary Mayfield 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 L12206
    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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Bills Medicare through one group practice

  1. Mindful Therapy Group PCPortland, OR

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

Mary Mayfield among 5,014 clinical social worker records in Oregon

Mary Mayfield, LCSW is one of 5,014 clinical social worker records with a practice address in Oregon. 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 2014, is newer than 50% of them.

  • NPI issued2014 · 50% of these records are older, 46% newer
  • In a Medicare fileYes · 12% of these records are
  • In the CMS Doctors and Clinicians fileYes · 21% of these records are
  • Graduated2015 · median 2011 among the 1,044 with a school on file
  • Record last updated2021 · 49% 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 Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

9 clinical social worker records list a practice address in Keizer

They are 9 of the 446 NPPES records with a practice address in Keizer, and 5,014 clinical social worker records in Oregon.

The 8 clinical social worker records with the nearest ZIP codes

  1. Cassandra Aglietti, LCSWKeizer, OR 973031710483466
  2. Vilma Chan VasquezKeizer, OR 973031083166789
  3. Monica Derosier, QMHP, LCSWSalem, OR 973031144500927
  4. Katia DuncanKeizer, OR 973031922407840
  5. Matthew Grady, LCSW CADC IIISalem, OR 973031811951569
  6. Rebecca Rasmussen, LCSWSalem, OR 973031942251723
  7. Christopher Scott, LCSWKeizer, OR 973031629472303
  8. Julia Shobe, LCSWKeizer, OR 973031497116107

Common questions

What is Mary Mayfield, LCSW's NPI number?

Mary Mayfield, LCSW's National Provider Identifier (NPI) is 1558775643, issued on Jun 17, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Mary Mayfield, LCSW located?

The NPPES record lists a practice address at 5305 River RD N Ste B, Keizer, OR, 97303. Phone: (503) 389-5360. Providers update this record themselves, so call before visiting.

How can I verify Mary Mayfield, LCSW's license?

NPPES lists Oregon license number L12206, 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. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

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.