Matthew Ralph De Haan, PSY.D.
Clinical Psychologist · Mill Creek, WA
Matthew Ralph De Haan, PSY.D. is a clinical psychologist with a practice address in Mill Creek, Washington, and NPI 1578870648, issued on Sep 9, 2010. Check the license (Washington 60337257, 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.
- Name
- Matthew Ralph De Haan
- Credential
- PSY.D.
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- 60337257 WA
Self-reported in NPPES; status is on the state search - Practice location
- 16000 Bothell Everett Hwy, Mill Creek, WA 98012
- Phone
- (425) 780-7184
- Enumerated
- Sep 9, 2010
- Record last updated
- Jun 2, 2015 (not updated in 11 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Also registered at 16000 Bothell Everett Hwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Charles Bartlett, MSW LICSWClinical Social Worker1194021550
- Christine Daverio, LCSWClinical Social Worker1891860151
- Matthew Evich, MA; LMHCPsychologist1477782993
- Nancy Gagliano, LICSWClinical Social Worker1124175328
- Barbara Graham, PH.D.Clinical Psychologist1528390424
- Enid Griffin, PSY.D.Clinical Child & Adolescent Psychologist1295921674
Verify Matthew Ralph De Haan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license 60337257Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
12 clinical psychologist records list a practice address in Mill Creek
They are 12 of the 554 NPPES records with a practice address in Mill Creek, and 1,675 clinical psychologist records in Washington. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 12 in Mill Creek → All 1,675 in Washington → Every provider in Mill Creek →
Other clinical psychologist records in Washington
- Amy Aadland, PSY.D.Vancouver, WA1134378227
- Geneva Abiko, PSY.D.Bellevue, WA1891905303
- Michelle Accardi-Ravid, PH.D.Seattle, WA1689094294
- Aimee Acebedo, PH.D.Tacoma, WA1437342912
- Chloe Adams, PHDLakewood, WA1407788789
- Diane Adams, PH.D.Renton, WA1922112937
- Julie Adams, PHDEdmonds, WA1700820644
- Kristopher AdamsVancouver, WA1679197370
- Reginald Adkisson, PHDBremerton, WA1063632834
- Chrystal Agnor, PH.D.Vancouver, WA1215241781
Common questions
What is Matthew Ralph De Haan, PSY.D.'s NPI number?
Matthew Ralph De Haan, PSY.D.'s National Provider Identifier (NPI) is 1578870648, issued on Sep 9, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Matthew Ralph De Haan, PSY.D. located?
The NPPES record lists a practice address at 16000 Bothell Everett Hwy, Mill Creek, WA, 98012. Phone: (425) 780-7184. Providers update this record themselves, so call before visiting.
How can I verify Matthew Ralph De Haan, PSY.D.'s license?
NPPES lists Washington license number 60337257, 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.