NPPES file of Aug 9, 2026

Reza Seyedsadjadi, M.D.

Neurology Physician · Boston, MA

Reza Seyedsadjadi, M.D. is a neurology physician with a practice address in Boston, Massachusetts, and NPI 1417235557, issued on Jul 22, 2011. Check the license 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
1417235557
Name
Reza Seyedsadjadi
Credential
M.D.
Primary taxonomy
Neurology Physician 2084N0400X
License number
278683 NY
Self-reported in NPPES; status is on the state search
Practice location
165 Cambridge St Ste 820, Boston, MA 02114
Phone
(617) 726-3642
Enumerated
Jul 22, 2011
Record last updated
Jun 21, 2018 (not updated in 8 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20161025000903); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 165 Cambridge St Ste 820

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

  1. Meng Fei Li, MD, FRCPCNeurology Physician1508740796
  2. Elizabeth O'ConnorNurse Practitioner1396224358

Verify Reza Seyedsadjadi in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in MedicineCheck 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

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79% fewer Medicare Part D claims than the average neurology physician in 2024

291 Medicare Part D claims for 68 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.

  1. Reza Seyedsadjadi291
  2. Specialty average1,370

Most prescribed

  1. Gabapentin56 claims
  2. Prednisone40 claims
  3. Pyridostigmine Bromide31 claims
  4. Mycophenolate Mofetil28 claims
  5. Amitriptyline Hcl15 claims
  6. Azathioprine14 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: $14,918.42

24 payments; by number, the most common kind was consulting fee; the largest payer was Amgen Inc. The 10,858 providers of this specialty with any payment received $8,318.07 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Reza Seyedsadjadi$14,918
  2. Specialty average$8,318

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

Bills Medicare through one group practice

  1. Massachusetts General Physicians Organization IncBoston, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Reza Seyedsadjadi among 964 neurology physician records in Massachusetts

Reza Seyedsadjadi, M.D. 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 2011, is newer than 64% of them.

  • NPI issued2011 · 64% of these records are older, 33% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated2003 · median 2006 among the 612 with a school on file
  • Record last updated2018 · 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. Thomas Byrne, MDBoston, MA 021141346230075
  3. David Caplan, MD PHDBoston, MA 021141780674945
  4. Alice Flaherty, MD PHDBoston, MA 021141396735601
  5. John Growdon, MDBoston, MA 021141407846686
  6. Michael Irizarry, MDBoston, MA 021141790775237
  7. James Lehrich, MDBoston, MA 021141205826518
  8. Robert Levine, MDBoston, MA 021141154318459

Common questions

What is Reza Seyedsadjadi, M.D.'s NPI number?

Reza Seyedsadjadi, M.D.'s National Provider Identifier (NPI) is 1417235557, issued on Jul 22, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Reza Seyedsadjadi, M.D. located?

The NPPES record lists a practice address at 165 Cambridge St Ste 820, Boston, MA, 02114. Phone: (617) 726-3642. Providers update this record themselves, so call before visiting.

How can I verify Reza Seyedsadjadi, M.D.'s license?

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 Reza Seyedsadjadi, M.D. prescribe under Medicare Part D?

In 2024, Reza Seyedsadjadi, M.D. had 291 Medicare Part D claims for 68 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.