NPPES file of Aug 9, 2026

Jess Goodenow Mason, LMHC

Mental Health Counselor · Seattle, WA

Jess Goodenow Mason, LMHC is a mental health counselor with a practice address in Seattle, Washington, and NPI 1548894405, issued on Feb 28, 2020. Check the license (Washington LH61014420, as entered in NPPES) with the Washington 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
1548894405
Name
Jess Goodenow Mason
Credential
LMHC
Primary taxonomy
Mental Health Counselor 101YM0800X
License number
LH61014420 WA
Self-reported in NPPES; status is on the state search
Practice location
753 N 35TH Street, Suite 310, Seattle, WA 98103
Phone
(425) 539-0525
Enumerated
Feb 28, 2020
Record last updated
Aug 26, 2024
Fax
(425) 553-3988
Medicare enrollment
Enrolled (PECOS I20241008001192); may accept 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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Verify Jess Goodenow Mason in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Washington board licenses this profession
    Search for license LH61014420
    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 Washington 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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Jess Goodenow Mason among 18,094 mental health counselor records in Washington

Jess Goodenow Mason, LMHC is one of 18,094 mental health counselor records with a practice address in Washington. 4% 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 2020, is newer than 65% of them.

  • NPI issued2020 · 65% of these records are older, 30% newer
  • In a Medicare fileNo · 4% of these records are
  • In the CMS Doctors and Clinicians fileYes · 7% of these records are
  • Graduated2009 · median 2014 among the 1,240 with a school on file
  • Record last updated2024 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 101YM0800X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

3,142 mental health counselor records list a practice address in Seattle

They are 3,142 of the 41,956 NPPES records with a practice address in Seattle, and 18,094 mental health counselor records in Washington. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 mental health counselor records with the nearest ZIP codes

  1. Barbara Alexander, MASeattle, WA 981031194864231
  2. Nancy BroadersSeattle, WA 981031164571113
  3. Robert Day, LMHCSeattle, WA 981031326191867
  4. Michael Foster, M.ED.Seattle, WA 981031306849237
  5. Jacquelyn Gilroy, MA, LMHCSeattle, WA 981031073667515
  6. William Grimsman, MASeattle, WA 981031467458554
  7. Joe Guppy, M.A., LMHCSeattle, WA 981031700938156
  8. Patrick Hart, PSY.D.Seattle, WA 981031588734990

Common questions

What is Jess Goodenow Mason, LMHC's NPI number?

Jess Goodenow Mason, LMHC's National Provider Identifier (NPI) is 1548894405, issued on Feb 28, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Jess Goodenow Mason, LMHC located?

The NPPES record lists a practice address at 753 N 35TH Street, Suite 310, Seattle, WA, 98103. Phone: (425) 539-0525. Providers update this record themselves, so call before visiting.

How can I verify Jess Goodenow Mason, LMHC's license?

NPPES lists Washington license number LH61014420, as entered by the provider. Search the Washington 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.

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.