NPPES file of Aug 9, 2026

Thomas Nilan Byrne, MD

Neurology Physician · Boston, MA

Thomas Nilan Byrne, MD is a neurology physician with a practice address in Boston, Massachusetts, and NPI 1346230075, issued on Oct 25, 2005. Check the license (Massachusetts 223263, 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
1346230075
Name
Thomas Nilan Byrne
Credential
MD
Primary taxonomy
Neurology Physician 2084N0400X
License numbers
223263 MA
023978 CT
Self-reported in NPPES; status is on the state search
Practice location
15 Parkman St, Boston, MA 02114
Phone
(617) 724-0880
Enumerated
Oct 25, 2005
Record last updated
Dec 14, 2012 (not updated in 14 years: call before relying on the address or phone)
Medicaid ID
2097028 MA
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 15 Parkman St

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

  1. Kate AdelettiPhysical Therapist1134247059
  2. Haitham Alabsi, DONeurology Physician1538587803
  3. Jonathan Alpert, MD PHDPsychiatry Physician1508857863
  4. Anthony Amato, MDNeurology Physician1124009881
  5. Maura Ament, PT DPTPhysical Therapist1629194386
  6. Sara Anderson, DPTPhysical Therapist1073924254

Verify Thomas Nilan Byrne 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 223263
    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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98% fewer Medicare Part D claims than the average neurology physician in 2024

24 Medicare Part D claims for 11 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Thomas Byrne24
  2. Specialty average1,370

Most prescribed

  1. Memantine Hcl23 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.

Thomas Nilan Byrne among 964 neurology physician records in Massachusetts

Thomas Nilan Byrne, MD is one of 964 neurology physician records with a practice address in Massachusetts. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 86% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileNo · 64% of these records are
  • Record last updated2012 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

524 neurology physician records list a practice address in Boston

They are 524 of the 41,865 NPPES records with a practice address in Boston, and 964 neurology physician records in Massachusetts.

The 8 neurology physician records with the nearest ZIP codes

  1. Cenk Ayata, MDBoston, MA 021141326038043
  2. David Caplan, MD PHDBoston, MA 021141780674945
  3. Alice Flaherty, MD PHDBoston, MA 021141396735601
  4. John Growdon, MDBoston, MA 021141407846686
  5. Michael Irizarry, MDBoston, MA 021141790775237
  6. James Lehrich, MDBoston, MA 021141205826518
  7. Robert Levine, MDBoston, MA 021141154318459
  8. Anne Louise Oaklander, MD PHDBoston, MA 021141275523615

Common questions

What is Thomas Nilan Byrne, MD's NPI number?

Thomas Nilan Byrne, MD's National Provider Identifier (NPI) is 1346230075, issued on Oct 25, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Thomas Nilan Byrne, MD located?

The NPPES record lists a practice address at 15 Parkman St, Boston, MA, 02114. Phone: (617) 724-0880. Providers update this record themselves, so call before visiting.

How can I verify Thomas Nilan Byrne, MD's license?

NPPES lists Massachusetts license number 223263, 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 Thomas Nilan Byrne, MD prescribe under Medicare Part D?

In 2024, Thomas Nilan Byrne, MD had 24 Medicare Part D claims for 11 beneficiaries; the average among neurology physician prescribers was 1,370. 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.