NPPES file of Aug 9, 2026

John Duncan McEwen, M.D.

Psychiatry Physician · Durham, NC

John Duncan McEwen, M.D. is a psychiatry physician with a practice address in Durham, North Carolina, and NPI 1194813014, issued on Oct 10, 2006. Check the license (North Carolina 28425, as entered in NPPES) on the North Carolina Medical Board; 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
1194813014
Name
John Duncan McEwen
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
28425 NC
Self-reported in NPPES; status is on the state search
Practice location
1415 Watts St, Durham, NC 27701
Phone
(919) 810-3536
Enumerated
Oct 10, 2006
Record last updated
Nov 12, 2025
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 John Duncan McEwen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNorth Carolina Medical Board
    Search for license 28425
    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 North Carolina license search

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67% fewer Medicare Part D claims than the average psychiatry physician in 2024

332 Medicare Part D claims for 18 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.

  1. John McEwen332
  2. Specialty average1,000

Most prescribed

  1. Buprenorphine Hcl92 claims
  2. Clonazepam68 claims
  3. Quetiapine Fumarate55 claims
  4. Trazodone Hcl20 claims
  5. Sertraline Hcl16 claims
  6. Alprazolam13 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.

Industry payments in 2024: $127.43

1 payment: food and beverage; the largest payer was E.R. Squibb & Sons, L.L.C. The 13,693 providers of this specialty with any payment received $4,954.93 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. John McEwen$127.43
  2. Specialty average$4,954.93

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

John Duncan McEwen among 1,725 psychiatry physician records in North Carolina

John Duncan McEwen, M.D. is one of 1,725 psychiatry physician records with a practice address in North Carolina. 69% 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 · 69% of these records are
  • In the CMS Doctors and Clinicians fileNo · 43% of these records are
  • Record last updated2025 · 53% 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 North Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

209 psychiatry physician records list a practice address in Durham

They are 209 of the 13,451 NPPES records with a practice address in Durham, and 1,725 psychiatry physician records in North Carolina.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Megan Arvidson, MDDurham, NC 277011942610480
  2. Arny Johannesdottir, MDDurham, NC 277011336825140
  3. Haroon Saeed, M.D.Durham, NC 277011750597696
  4. Mark Shelhorse, M.D.Durham, NC 277011528021441
  5. Jessica Allen, M.D.Durham, NC 277031952721102
  6. David Bartholomew, M.D.Raleigh, NC 276991952495004
  7. Vicki-Lynn Brown, MSW, LCSW, CCMDurham, NC 277031487732780
  8. Margaret Champion, MDRaleigh, NC 276991659431849

Common questions

What is John Duncan McEwen, M.D.'s NPI number?

John Duncan McEwen, M.D.'s National Provider Identifier (NPI) is 1194813014, issued on Oct 10, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John Duncan McEwen, M.D. located?

The NPPES record lists a practice address at 1415 Watts St, Durham, NC, 27701. Phone: (919) 810-3536. Providers update this record themselves, so call before visiting.

How can I verify John Duncan McEwen, M.D.'s license?

NPPES lists North Carolina license number 28425, as entered by the provider. Search the North Carolina Medical Board at https://portal.ncmedboard.org/verification/search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does John Duncan McEwen, M.D. prescribe under Medicare Part D?

In 2024, John Duncan McEwen, M.D. had 332 Medicare Part D claims for 18 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.