John W. Mahler, M.D.
Psychiatry Physician · Wenatchee, WA
John W. Mahler, M.D. is a psychiatry physician with a practice address in Wenatchee, Washington, and NPI 1063832640, issued on Apr 22, 2014. Check the license (Washington MD60843240, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- John W. Mahler
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- MD60843240 WA
Self-reported in NPPES; status is on the state search - Practice location
- 820 N Chelan Ave, Wenatchee, WA 98801
- Phone
- (509) 663-8711
- Enumerated
- Apr 22, 2014
- Record last updated
- Aug 7, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20180726003441); accepts Medicare assignment
- Medical or professional school
- University Of Connecticut School Of Medicine, 2014
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 1,195 in Washington → Look up another NPI →
Also registered at 820 N Chelan Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Makena Ackerman, ARNPFamily Nurse Practitioner1598500936
- Steven Aguilu, M.D.Family Medicine Physician1851397830
- Amber Aiken, RNCase Manager/Care Coordinator1396498234
- Benjamin Albertson, MDSports Medicine (Orthopaedic Surgery) Physician1316471816
Verify John W. Mahler in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD60843240Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
68% more Medicare Part D claims than the average psychiatry physician in 2024
1,682 Medicare Part D claims for 130 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 2% of claims.
Most prescribed
- Sertraline Hcl132 claims
- Clonazepam107 claims
- Trazodone Hcl101 claims
- Bupropion Xl87 claims
- Olanzapine79 claims
- Buspirone Hcl74 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
- Central Washington Health Services AssociationWenatchee, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John W. Mahler among 1,195 psychiatry physician records in Washington
John W. Mahler, 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 2014, is newer than 77% of them.
- NPI issued2014 · 77% of these records are older, 21% newer
- In a Medicare fileYes · 61% of these records are
- In the CMS Doctors and Clinicians fileYes · 39% of these records are
- Graduated2014 · median 2007 among the 462 with a school on file
- Record last updated2018 · 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 Wenatchee → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Casey Collins, MDWenatchee, WA 988011134680374
- Marie Carmel Desire, MDWenatchee, WA 988011922058783
- James Ethier, M.D.Wenatchee, WA 988011245208404
- Stephanie Giannandrea, M.D.Wenatchee, WA 988011679694624
- Julie Janssen, MDWenatchee, WA 988011649261116
- Brian Lammert, MDWenatchee, WA 988011497490486
- Amanda Martin, M.D.Wenatchee, WA 988011790280659
- Albert Wertz, D.O.Wenatchee, WA 988011093150138
Common questions
What is John W. Mahler, M.D.'s NPI number?
John W. Mahler, M.D.'s National Provider Identifier (NPI) is 1063832640, issued on Apr 22, 2014. An NPI identifies a provider in billing; it is not a license.
Where is John W. Mahler, M.D. located?
The NPPES record lists a practice address at 820 N Chelan Ave, Wenatchee, WA, 98801. Phone: (509) 663-8711. Providers update this record themselves, so call before visiting.
How can I verify John W. Mahler, M.D.'s license?
NPPES lists Washington license number MD60843240, 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 John W. Mahler, M.D. prescribe under Medicare Part D?
In 2024, John W. Mahler, M.D. had 1,682 Medicare Part D claims for 130 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.