NPPES file of Aug 9, 2026

Stephen Patrick McDermott, MD

Psychiatry Physician · Wellesley, MA

Stephen Patrick McDermott, MD is a psychiatry physician with a practice address in Wellesley, Massachusetts, and NPI 1366477499, issued on Jul 11, 2006. Check the license (Massachusetts 55616, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; 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
1366477499
Name
Stephen Patrick McDermott
Credential
MD
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
55616 MA
Self-reported in NPPES; status is on the state search
Practice location
25 Walnut St, Wellesley, MA 02481
Phone
(781) 416-4004
Enumerated
Jul 11, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(781) 416-4024
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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Also registered at 25 Walnut St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Chandler BennettMental Health Counselor1255903936
  2. Elizabeth Humphreys, MDPediatrics Physician1396823910
  3. Robert Javer, DMDPeriodontics1689718009
  4. Mark Markarian, MD, MSPHPlastic and Reconstructive Surgery Physician1174647192
  5. Swathi SrinivasanMental Health Counselor1467175083

Verify Stephen Patrick McDermott in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 55616
    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 Massachusetts license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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97% fewer Medicare Part D claims than the average psychiatry physician in 2024

25 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Stephen McDermott25
  2. Specialty average1,000

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.

Stephen Patrick McDermott among 2,736 psychiatry physician records in Massachusetts

Stephen Patrick McDermott, MD is one of 2,736 psychiatry physician records with a practice address in Massachusetts. 65% 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 10% of them.

  • NPI issued2006 · 10% of these records are older, 51% newer
  • In a Medicare fileYes · 65% of these records are
  • In the CMS Doctors and Clinicians fileNo · 45% of these records are
  • Record last updated2007 · 62% 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 Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

36 psychiatry physician records list a practice address in Wellesley

They are 36 of the 1,117 NPPES records with a practice address in Wellesley, and 2,736 psychiatry physician records in Massachusetts.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Ann Briley, MDWellesley Hills, MA 024811740252360
  2. Stephanie Davidoff, M.D. PH.D.Wellesley, MA 024811669421236
  3. Mahnoosh Eslami, MDWellesley, MA 024811871545509
  4. Jerome Gans, MDWellesley, MA 024811306837455
  5. Edwin Mikkelsen, M.D.Wellesley, MA 024811992756530
  6. Richard Morrill, MDWellesley, MA 024811861449472
  7. Alison Phillips, M.D.Wellesley, MA 024811124067210
  8. Mona Potter, MDWellesley Hills, MA 024811235113010

Common questions

What is Stephen Patrick McDermott, MD's NPI number?

Stephen Patrick McDermott, MD's National Provider Identifier (NPI) is 1366477499, issued on Jul 11, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Stephen Patrick McDermott, MD located?

The NPPES record lists a practice address at 25 Walnut St, Wellesley, MA, 02481. Phone: (781) 416-4004. Providers update this record themselves, so call before visiting.

How can I verify Stephen Patrick McDermott, MD's license?

NPPES lists Massachusetts license number 55616, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Stephen Patrick McDermott, MD prescribe under Medicare Part D?

In 2024, Stephen Patrick McDermott, MD had 25 Medicare Part D claims; 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.