John Mackenzie, MD
Psychiatry Physician · Elmhurst, NY
John Mackenzie, MD is a psychiatry physician with a practice address in Elmhurst, New York, and NPI 1780110700, issued on May 11, 2017. Check the license (New York 306768, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- John Mackenzie
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 306768 NY
Self-reported in NPPES; status is on the state search - Practice location
- 7901 Broadway # D10-36, Elmhurst, NY 11373
- Phone
- (718) 334-3501
- Enumerated
- May 11, 2017
- Record last updated
- Jul 7, 2023
- Fax
- (718) 334-5006
- Medicare enrollment
- Enrolled (PECOS I20230815000711); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 6,589 in New York → Look up another NPI →
Also registered at 7901 Broadway # D10-36
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify John Mackenzie in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 306768Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
62% fewer Medicare Part D claims than the average psychiatry physician in 2024
378 Medicare Part D claims for 51 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.
Most prescribed
- Quetiapine Fumarate35 claims
- Sertraline Hcl32 claims
- Olanzapine27 claims
- Duloxetine Hcl25 claims
- Mirtazapine23 claims
- Clonazepam17 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
- New York City Health And Hospitals CorporationElmhurst, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Mackenzie among 6,589 psychiatry physician records in New York
John Mackenzie, MD is one of 6,589 psychiatry physician records with a practice address in New York. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 82% of them.
- NPI issued2017 · 82% of these records are older, 15% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 39% of these records are
- Graduated2018 · median 2002 among the 2,559 with a school on file
- Record last updated2023 · 65% 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 New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
79 psychiatry physician records list a practice address in Elmhurst
They are 79 of the 2,781 NPPES records with a practice address in Elmhurst, and 6,589 psychiatry physician records in New York.
All 6,589 in New York → Every provider in Elmhurst → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Nima Akhavan, MDElmhurst, NY 113731841395597
- Karneya Ancselovits, MDElmhurst, NY 113731427153196
- Charles BarronElmhurst, NY 113731184704256
- Douglas Beer, MDElmhurst, NY 113731891875977
- Emile Borde, MDElmhurst, NY 113731831197888
- Vladimir Gasca, MDElmhurst, NY 113731609976422
- Eliseo Go, M.D.Elmhurst, NY 113731659466985
- Carrol Longshore, MDElmhurst, NY 113731578649786
Common questions
What is John Mackenzie, MD's NPI number?
John Mackenzie, MD's National Provider Identifier (NPI) is 1780110700, issued on May 11, 2017. An NPI identifies a provider in billing; it is not a license.
Where is John Mackenzie, MD located?
The NPPES record lists a practice address at 7901 Broadway # D10-36, Elmhurst, NY, 11373. Phone: (718) 334-3501. Providers update this record themselves, so call before visiting.
How can I verify John Mackenzie, MD's license?
NPPES lists New York license number 306768, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John Mackenzie, MD prescribe under Medicare Part D?
In 2024, John Mackenzie, MD had 378 Medicare Part D claims for 51 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.