Dr. Ewen M. MacPherson, MD

  • Buffalo, NY
  • Child and adolescent psychiatrist
NPI1205961257PAC ID7012055692
Part D claims, 2024
1,450
Hospital affiliations
3
Medical group
1
State license
1
Year NPI issued
2007
Practice address
2157 Main Street, Buffalo, NY 14214
Practice phone
Call (716) 862-1000
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

Sisters of Charity Hospital

Hospital · Buffalo, New York

See all 5 affiliations

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Dr. Ewen M. MacPherson is a child and adolescent psychiatrist in Buffalo, New York

Dr. MacPherson practices at Sisters of Charity Hospital in Buffalo, New York, part of Catholic Health System.

Dr. MacPherson's NPI, 1205961257, was assigned on February 22, 2007. Dr. MacPherson graduated from American University of the Caribbean School of Medicine in 1983. Dr. MacPherson holds New York license 1900211.

NPI and contact details
Medicare PAC ID
7012055692
NPI enumeration date
February 22, 2007
NPI status
Active
Practice phone
(716) 862-1000
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
69
Medical school graduation
1983

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data

Dr. Ewen M. MacPherson practices at Sisters of Charity Hospital in Buffalo, New York

Dr. MacPherson's primary practice is Sisters of Charity Hospital, at 2157 Main Street, Buffalo, NY 14214 in Erie County. The practice phone is (716) 862-1000.

Source: Dmand AI Affiliation Data

Dr. Ewen M. MacPherson is affiliated with 4 sites of care and 1 medical group

Dr. MacPherson's primary practice is Sisters of Charity Hospital in Buffalo, New York, part of Catholic Health System. Dr. MacPherson is also affiliated with Olean General Hospital. Dmand AI also links Dr. MacPherson to 1 more hospital, 1 group practice or clinic and 1 medical group, each named with a free account.

See all 5 affiliations for Dr. MacPherson

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Ewen M. MacPherson's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. MacPherson practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Sisters of Charity HospitalAvailable with a free account
+3 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dmand AI maps EHR vendors, IT decision makers and buying committees across Catholic Health System and 6.2K+ hospitals, with verified contacts in the same login.

Dr. Ewen M. MacPherson is one of 512 childs and adolescent psychiatrists in New York

Child and adolescent psychiatry is Dr. MacPherson's primary specialty in the NPI Registry, under taxonomy code 2084P0804X. Dr. MacPherson is licensed in New York.

Specialties and state licenses

  • Child and adolescent psychiatry, New YorkPrimaryLicense 1900211 · taxonomy 2084P0804X

Childs and adolescent psychiatrists near Dr. MacPherson

Counts of childs and adolescent psychiatrists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Ewen M. MacPherson's patients have a median age of 42

Across all payers, Dmand AI patient panel data puts Dr. MacPherson's median patient age at 42, with 28% women.

Dr. MacPherson's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 42

Patient panel by sex, all payers

  • Women28%
  • Men72%

Source: Dmand AI Patient Panel Data

Dr. Ewen M. MacPherson wrote 1,450 Medicare Part D claims in 2024

In 2024, Dr. MacPherson wrote 1,450 Medicare Part D claims for 39 patients. 96% of them were for generic drugs. CMS names the drug for 1,418 of them, across 36 drugs with 11 or more claims each, at $99,780 in total drug cost. In 2023, CMS named 947 claims across 29 drugs.

Part D claims, 20241,450
Drugs named by CMS36
Total drug cost$99,780
Part D patients39

Dr. MacPherson's Part D claims by kind of drug, 2024

  • Generic1,399 claims96%
  • Brand-name51 claims4%

Dr. MacPherson's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. MacPherson's Part D claims, 2024

  • Antipsychotics, patients 65 and over5%76 of 1,450 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 9472024: 1,41850%

Drugs named by CMS: 36 in 2024, 29 in 2023.

See all prescribing by Dr. MacPherson

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

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Dr. Ewen M. MacPherson graduated from American University of the Caribbean School of Medicine

Dr. MacPherson graduated from American University of the Caribbean School of Medicine in 1983.

  1. Medical schoolAmerican University of the Caribbean School of Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Ewen M. MacPherson's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Ewen M. MacPherson

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Ewen M. MacPherson's NPI number?

Dr. Ewen M. MacPherson's NPI number is 1205961257. It was assigned on February 22, 2007, and it is active in the NPI Registry.

What kind of doctor is Dr. Ewen M. MacPherson?

Dr. Ewen M. MacPherson is a child and adolescent psychiatrist in Buffalo, New York. The primary specialty in the NPI Registry is Child & Adolescent Psychiatry Physician (taxonomy code 2084P0804X).

Where does Dr. Ewen M. MacPherson practice?

Dr. MacPherson practices at 2157 Main Street, Buffalo, NY 14214. Dr. MacPherson's primary practice is Sisters of Charity Hospital in Buffalo, New York, part of Catholic Health System. Dmand AI also links Dr. MacPherson to 1 hospital, 1 group practice or clinic and 1 medical group.

What is Dr. Ewen M. MacPherson's office phone number?

The practice phone on file for Dr. MacPherson is (716) 862-1000.

What is Dr. Ewen M. MacPherson's medical license number?

Dr. MacPherson holds New York license 1900211.

Which hospitals is Dr. Ewen M. MacPherson affiliated with?

Dr. MacPherson practices at Sisters of Charity Hospital in Buffalo, New York. Dr. MacPherson is also affiliated with Olean General Hospital. Dmand AI links Dr. MacPherson to 1 more hospital.

Where did Dr. Ewen M. MacPherson go to medical school?

Dr. MacPherson graduated from American University of the Caribbean School of Medicine in 1983.

What drugs does Dr. Ewen M. MacPherson prescribe most?

In 2024 Medicare Part D data, Dr. MacPherson's most prescribed drugs by claims were Clonazepam, Risperidone and Clozapine.

How long has Dr. Ewen M. MacPherson been practicing?

Dr. MacPherson graduated from medical school in 1983, 43 years ago.

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