Mary-Ellen Leslie Cotter, M.D.
Psychiatry Physician · Everett, WA
Mary-Ellen Leslie Cotter, M.D. is a psychiatry physician with a practice address in Everett, Washington, and NPI 1508974270, issued on Aug 25, 2006. Check the license (Washington MD00034468, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Mary-Ellen Leslie Cotter
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- MD00034468 WA
Self-reported in NPPES; status is on the state search - Practice location
- 4526 Federal Ave, Everett, WA 98203
- Phone
- (425) 349-6320
- Enumerated
- Aug 25, 2006
- Record last updated
- Jul 1, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (425) 349-6325
- Medicare enrollment
- Enrolled (PECOS I20071207000365); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 1,195 in Washington → Look up another NPI →
Also registered at 4526 Federal Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Riaqueen Abelon, BA, AACCounselor1629725635
- Tinsae AbiyoCounselor1336965565
- Jemal AbrehaPsychiatric/Mental Health Registered Nurse1891657052
- Victoria Rose AdausCounselor1508412172
- Ruby AdrianPeer Specialist1215676481
- Teyonna Aiken, MS, AAC, CLIN 2Mental Health Counselor1265669428
Verify Mary-Ellen Leslie Cotter in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00034468Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
57% more Medicare Part D claims than the average psychiatry physician in 2024
1,571 Medicare Part D claims for 43 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Benztropine Mesylate112 claims
- Clozapine112 claims
- Trazodone Hcl95 claims
- Quetiapine Fumarate89 claims
- Aripiprazole85 claims
- Olanzapine77 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Compass HealthMarysville, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary-Ellen Leslie Cotter among 1,195 psychiatry physician records in Washington
Mary-Ellen Leslie Cotter, M.D. is one of 1,195 psychiatry physician records with a practice address in Washington. 61% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 57% newer
- In a Medicare fileYes · 61% of these records are
- In the CMS Doctors and Clinicians fileYes · 39% of these records are
- Graduated1986 · median 2007 among the 462 with a school on file
- Record last updated2020 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in Washington
There are 1,195 psychiatry physician records in Washington.
All 1,195 in Washington → Every provider in Everett → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Robert AndersonEverett, WA 982031740486570
- Larry Bornstein, MDEverett, WA 982031548343577
- Sandra Kalnins, D.O.Everett, WA 982031710954573
- Robert Lovell, M.D.Everett, WA 982031831276583
- Michael Shen, M.D.Everett, WA 982031275747909
- Tasca Snow, MDEverett, WA 982031124000732
- Shirley Stallings, MDEverett, WA 982031427092717
- Jacob Brent, M.D.Everett, WA 982011508354887
Common questions
What is Mary-Ellen Leslie Cotter, M.D.'s NPI number?
Mary-Ellen Leslie Cotter, M.D.'s National Provider Identifier (NPI) is 1508974270, issued on Aug 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mary-Ellen Leslie Cotter, M.D. located?
The NPPES record lists a practice address at 4526 Federal Ave, Everett, WA, 98203. Phone: (425) 349-6320. Providers update this record themselves, so call before visiting.
How can I verify Mary-Ellen Leslie Cotter, M.D.'s license?
NPPES lists Washington license number MD00034468, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mary-Ellen Leslie Cotter, M.D. prescribe under Medicare Part D?
In 2024, Mary-Ellen Leslie Cotter, M.D. had 1,571 Medicare Part D claims for 43 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions 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.