NPPES file of Aug 9, 2026

Nader Najafian, MD

Nephrology Physician · Boston, MA

Nader Najafian, MD is a nephrology physician with a practice address in Boston, Massachusetts, and NPI 1235107574, issued on Mar 11, 2006. Check the license (Massachusetts 154194, 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
1235107574
Name
Nader Najafian
Credential
MD
Primary taxonomy
Nephrology Physician 207RN0300X
License number
154194 MA
Self-reported in NPPES; status is on the state search
Practice location
Brigham And Womans Hospital Immunogenetics & Transplant, Boston, MA 02115
Phone
(617) 732-5868
Enumerated
Mar 11, 2006
Record last updated
Nov 13, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20090318000428); accepts Medicare assignment
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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Verify Nader Najafian 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 154194
    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

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90% fewer Medicare Part D claims than the average nephrology physician in 2024

140 Medicare Part D claims for 13 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.

  1. Nader Najafian140
  2. Specialty average1,465

Most prescribed

  1. Prednisone20 claims
  2. Tacrolimus17 claims
  3. Prograf13 claims
  4. Amlodipine Besylate12 claims
  5. Losartan Potassium12 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: $141.04

1 payment: food and beverage; the largest payer was Vertex Pharmaceuticals Incorporated. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Nader Najafian$141.04
  2. Specialty average$3,091.37

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. Brigham And Womens Physicians Organization IncBoston, MA

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

Nephrology Physician providers in Massachusetts

There are 417 nephrology physician records in Massachusetts.

Other nephrology physician records in Massachusetts

  1. Amtul Aala, MDBoston, MA1174946347
  2. Reza Abdi, MDBoston, MA1356359368
  3. Marat Abdullin, M.D.Springfield, MA1619159712
  4. Vivian AbernethyBoston, MA1710960232
  5. Rekha Abichandani, M.D.Cambridge, MA1912033598
  6. Konstantin Abramov, M.D.Worcester, MA1992854707
  7. Krishna Agarwal, M.B.B.S.Springfield, MA1477916120
  8. Nikhil AgrawalBoston, MA1467722579
  9. Ayman Al Jurdi, M.D.Boston, MA1043690332
  10. Laith Al Rabadi, M.D.Boston, MA1821309188

Common questions

What is Nader Najafian, MD's NPI number?

Nader Najafian, MD's National Provider Identifier (NPI) is 1235107574, issued on Mar 11, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Nader Najafian, MD located?

The NPPES record lists a practice address at Brigham And Womans Hospital Immunogenetics & Transplant, Boston, MA, 02115. Phone: (617) 732-5868. Providers update this record themselves, so call before visiting.

How can I verify Nader Najafian, MD's license?

NPPES lists Massachusetts license number 154194, 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 Nader Najafian, MD prescribe under Medicare Part D?

In 2024, Nader Najafian, MD had 140 Medicare Part D claims for 13 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.