NPPES file of Aug 9, 2026

Mary G. Bartels, MD

Psychiatry Physician · Mercer Island, WA

Mary G. Bartels, MD is a psychiatry physician with a practice address in Mercer Island, Washington, and NPI 1609925700, issued on Jan 9, 2007. Check the license (Washington MD00023840, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1609925700
Name
Mary G. Bartels
Credential
MD
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
MD00023840 WA
Self-reported in NPPES; status is on the state search
Practice location
7254 91St Ave SE, Mercer Island, WA 98040
Phone
(206) 679-9084
Enumerated
Jan 9, 2007
Record last updated
Apr 14, 2022
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Mary G. Bartels in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license MD00023840
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Washington license search

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43% more Medicare Part D claims than the average psychiatry physician in 2024

1,432 Medicare Part D claims for 97 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims.

  1. Mary Bartels1,432
  2. Specialty average1,000

Most prescribed

  1. Quetiapine Fumarate118 claims
  2. Trazodone Hcl109 claims
  3. Clonazepam91 claims
  4. Escitalopram Oxalate80 claims
  5. Aripiprazole69 claims
  6. Duloxetine Hcl63 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.

Mary G. Bartels among 1,195 psychiatry physician records in Washington

Mary G. Bartels, MD 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 2007, is newer than 43% of them.

  • NPI issued2007 · 43% of these records are older, 40% newer
  • In a Medicare fileYes · 61% of these records are
  • In the CMS Doctors and Clinicians fileNo · 39% of these records are
  • Record last updated2022 · 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).

9 psychiatry physician records list a practice address in Mercer Island

They are 9 of the 331 NPPES records with a practice address in Mercer Island, and 1,195 psychiatry physician records in Washington.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Christina Demopulos, M.D.Mercer Island, WA 980401942403381
  2. David Dunner, MDMercer Island, WA 980401023188463
  3. Ryan Fugate, M.D.Mercer Island, WA 980401003042797
  4. Thucuc Nguyen, M.D.Mercer Island, WA 980401699824110
  5. Edyth Phillips, M.D.Mercer Island, WA 980401922024009
  6. Kevin Sloan, M.D.Mercer Island, WA 980401558470195
  7. Janet Soeprono, M.D.Mercer Island, WA 980401982923108
  8. Robert Thilo, M.D.Mercer Island, WA 980401285789743

Common questions

What is Mary G. Bartels, MD's NPI number?

Mary G. Bartels, MD's National Provider Identifier (NPI) is 1609925700, issued on Jan 9, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Mary G. Bartels, MD located?

The NPPES record lists a practice address at 7254 91St Ave SE, Mercer Island, WA, 98040. Phone: (206) 679-9084. Providers update this record themselves, so call before visiting.

How can I verify Mary G. Bartels, MD's license?

NPPES lists Washington license number MD00023840, 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 G. Bartels, MD prescribe under Medicare Part D?

In 2024, Mary G. Bartels, MD had 1,432 Medicare Part D claims for 97 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.