Grace Hamilton
Psychologist β’ Mill Creek, WA
15418 Main St
Mill Creek, WA 980129030
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
Practice Location & Contact Primary Location
15418 Main St
Mill Creek, WA 980129030
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 1 additional practice-address record in Redondo Beach, CA. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
CMS Doctors and Clinicians lists 1 group name: Bluestone Psychological Services Llc. See the list
Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026
2018
What Public CMS Data Show
Psychologist: NPPES taxonomy is a reported classification, not proof of board certification.
Years since graduation
8 years (graduated 2018)
CMS Doctors and Clinicians data list 2018 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026.
NPI first issued
2017
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians, CMS release of October 2, 2026; Medicare.gov, βDoes your provider accept Medicare as full payment?β
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians, CMS release of October 2, 2026.
Enrolled in Medicare (PECOS)
Grace Hamilton has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Grace Hamilton as eligible to order or refer Medicare Part B clinical laboratory and imaging services and durable medical equipment (DME) for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Mill Creek and Washington
6 active clinicians are listed under Psychologist with a practice address in Mill Creek, WA (1,098 in Washington).
Addresses are self-reported to NPPES and may be out of date.
Sources: CMS Doctors and Clinicians, CMS release of October 2, 2026, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo Β· Report an error.
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2020-09-14NUCC Taxonomy Code: 103T00000X
A psychologist is an individual who is licensed to practice psychology which is defined as the observation, description, evaluation, interpretation, and modification of human behavior by the application of psychological principles, methods, and procedures, for the purpose of preventing or eliminating symptomatic, maladaptive, or undesired behavior and of enhancing interpersonal relationships, work and life adjustment, personal effectiveness, behavioral health, and mental health. The practice of psychology includes, but is not limited to, psychological testing and the evaluation or assessment of personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning; counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy; diagnosis and treatment of mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability; and psycheducational evaluation, therapy, remediation, and consultation. Psychological services may be rendered to individuals, families, groups and the public.
NUCC Taxonomy Code: 103G00000X
A clinical psychologist who applies principles of assessment and intervention based upon the scientific study of human behavior as it relates to normal and abnormal functioning of the central nervous system. The specialty is dedicated to enhancing the understanding of brain-behavior relationships and the application of such knowledge to human problems.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - CLINICAL PSYCHOLOGIST
I20200306001188
CA
8325476229
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026
Bluestone Psychological Services Llc
144 Railroad Ave, Edmonds, WA 980204100
Phone: 4257754059
Secondary Practice Locations
326 S Pacific Coast Hwy Ste 200
Redondo Beach, CA 902773769
Phone: 3108553288
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Nurse Practitioner - Psychiatric/Mental Health
Doctor of Nursing Practice
Nurse Practitioner - Psychiatric/Mental Health
Advanced Registered Nurse Practitioner
Nurse Practitioner - Psychiatric/Mental Health
Master of Science in Nursing, Psychiatric-Mental Health Nurse Practitioner
Nurse Practitioner - Psychiatric/Mental Health
Family Medicine
Doctor of Medicine (M.D.)
Psychiatry & Neurology - Child & Adolescent Psychiatry
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 15418 MAIN ST, MILL CREEK, WA 980129030 (Tel: 4253395453)
Registered at PO BOX 5127, EVERETT, WA 982065127 (Tel: 4253395453)
Additional practice office at 326 S Pacific Coast Hwy Ste 200, Redondo Beach, CA 902773769
Registered at 326 S PACIFIC COAST HWY STE 200, REDONDO BEACH, CA 902773769 (Tel: 3108553288)
Clinical Neuropsychologist (license number reported to NPPES: CA PSY31627)
NPI status registered as active in NPPES database
Registered at 2750 E BELTLINE AVE NE, GRAND RAPIDS, MI 495258614 (Tel: 6164479582)
Registered at 100 MICHIGAN ST NE # MC845, GRAND RAPIDS, MI 495032560
Recorded as GRACE HAMILTON
Psychologist (license number reported to NPPES: MI 6301017161)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Mailing Address
Po Box 5127
Everett, WA 982065127
Phone: 4253395453