Heidi Isakson
Mental Health Counselor · Seattle, WA
Heidi Isakson is a mental health counselor with a practice address in Seattle, Washington, and NPI 1174070155, issued on Sep 7, 2016. Check the license with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Heidi Isakson
- Primary taxonomy
- Mental Health Counselor 101YM0800X
- Practice location
- 600 Broadway, Seattle, WA 98122
- Phone
- (206) 444-7800
- Enumerated
- Sep 7, 2016
- Record last updated
- Sep 7, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (206) 444-7900
- Medicare enrollment
- Enrolled (PECOS I20240201004551); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest mental health counselor records → All 18,094 in Washington → Look up another NPI →
Also registered at 600 Broadway
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Heidi Isakson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- SoundSeattle, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Heidi Isakson among 18,094 mental health counselor records in Washington
Heidi Isakson 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. Its NPI, issued in 2016, is newer than 42% of them.
- NPI issued2016 · 42% of these records are older, 54% newer
- In a Medicare fileYes · 4% of these records are
- In the CMS Doctors and Clinicians fileYes · 7% of these records are
- Graduated2012 · median 2014 among the 1,240 with a school on file
- Record last updated2016 · 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.
All 18,094 in Washington → Every provider in Seattle → Mental Health Counselor nationwide →
The 8 mental health counselor records with the nearest ZIP codes
- Thomas Bade, MA, AACSeattle, WA 981221841353646
- Ruth Birnbaum, MSW, LICSWSeattle, WA 981221871654780
- Deborah Cohen, M.A.Seattle, WA 981221386716496
- Jason Czeskleba, LMHCSeattle, WA 981221124189956
- Seven Dunsmore, MA, MHPSeattle, WA 981221942361829
- Mark Fadool, MSSeattle, WA 981221851489348
- Tamra Frazier, M.A.Seattle, WA 981221770657686
- Karen Lucas, L.M.H.C,L.M.P.Seattle, WA 981221780740340
Common questions
What is Heidi Isakson's NPI number?
Heidi Isakson's National Provider Identifier (NPI) is 1174070155, issued on Sep 7, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Heidi Isakson located?
The NPPES record lists a practice address at 600 Broadway, Seattle, WA, 98122. Phone: (206) 444-7800. Providers update this record themselves, so call before visiting.
How can I verify Heidi Isakson's license?
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. 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.