Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Mary-Ellen Leslie Cotter, M.D.
Psychiatry Physician in Everett, WA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1508974270
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Registry record
Entity type Individual (Type 1)
Name Dr. Mary-Ellen Leslie Cotter
Credential M.D.
Sex Female
Practice address 4526 Federal Ave, Bldg. 9, Everett, WA, 98203
Phone (425) 349-6320
Fax (425) 349-6325
Enumeration date Aug 25, 2006
Last updated in NPPES Jul 1, 2020
Taxonomy & licenses
2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License MD00034468 (WA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
What is the NPI number for Mary-Ellen Cotter?
The National Provider Identifier (NPI) for Mary-Ellen Cotter is 1508974270, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mary-Ellen Cotter practice?
The practice location on file with NPPES is in Everett, WA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Tasca Snow Psychiatry Physician · Everett, WA NPI 1124000732 Kate Hume Psychiatric/Mental Health Nurse Practitioner · Everett, WA NPI 1053399923 Heidi Theisen Counselor · Everett, WA NPI 1013983980 Sandra Kalnins Psychiatry Physician · Everett, WA NPI 1710954573 Linda Ford Mental Health Counselor · Everett, WA NPI 1720057813 Sara Wells Psychiatric/Mental Health Nurse Practitioner · Everett, WA NPI 1497703359 Compass Health Community/Behavioral Health Agency · Everett, WA NPI 1730136201 Anastasia Alles Mental Health Counselor · Everett, WA NPI 1831138908
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-07-01.