Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

MS. Mary Blaine Atwater, LMHC

Individual provider Mental Health Counselor · NPI 1386303048

MS. Mary Blaine Atwater, LMHC is a Mental Health Counselor in Greenbank, Washington. Qualified in 2001, 25 years ago. Practices with Seatac Senior Psychology LLC, a 14-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Washington.

Years since qualifying
25
Licensed in
WA
In the registry since
2021
What do these letters mean?
LMHC — Licensed Mental Health Counselor
A licensed mental health counsellor; the title used in Florida, New York and Washington among others.

See every abbreviation used in this directory →

Practice location Address checks out

3745 Resort Rd Unit D
Greenbank, WA 98253
Phone: (360) 320-2949
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X · Licence LH61218033 (WA)

Record details

NPI number1386303048
Entity typeIndividual (Type 1)
GenderFemale
Credentials LMHC
Sole proprietorYes
NPI enumeratedDecember 9, 2021
Last updated in NPPESDecember 9, 2021
Certification dateDecember 9, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyMENTAL HEALTH COUNSELOR
Medical schoolOTHER
Graduated 2001 (25 years in practice)
Group practice Seatac Senior Psychology Llc — 14 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services