Dr. Prashanth Rajarajan, MD, PhD

  • Boston, MA
  • Neurologist
NPI1730766684PAC ID4183024888
Part D claims, 2024
16
Hospital affiliations
1
Industry payments
$134
Medical groups
3
State license
1
Practice address
75 Francis Street, Boston, MA 02115
Practice phone
Call (617) 732-5500
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

Brigham and Women's Hospital

Hospital · Boston, Massachusetts

See all 5 affiliations

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Dr. Prashanth Rajarajan is a neurologist in Boston, Massachusetts

Dr. Rajarajan practices at Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham.

Dr. Rajarajan's NPI, 1730766684, was assigned on March 26, 2021. Dr. Rajarajan graduated from Icahn School of Medicine at Mount Sinai in 2021. Dr. Rajarajan holds Massachusetts license 1023690.

NPI and contact details
Medicare PAC ID
4183024888
NPI enumeration date
March 26, 2021
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(617) 732-5500
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Male
Estimated age
31
Medical school graduation
2021

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Prashanth Rajarajan practices at Brigham and Women's Hospital in Boston, Massachusetts

Dr. Rajarajan's primary practice is Brigham and Women's Hospital, at 75 Francis Street, Boston, MA 02115 in Suffolk County. The practice phone is (617) 732-5500.

Source: Dmand AI Affiliation Data

Dr. Prashanth Rajarajan is affiliated with 2 sites of care and 3 medical groups

Dr. Rajarajan's primary practice is Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham. The medical group on file is Massachusetts General Physicians Organization (MGPO). Dmand AI also links Dr. Rajarajan to 2 more medical groups and 1 hospital outpatient department, each named with a free account.

See all 5 affiliations for Dr. Rajarajan

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Prashanth Rajarajan's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Rajarajan practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Brigham and Women's HospitalAvailable with a free account
+1 more site and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Prashanth Rajarajan is one of 806 neurologists in Massachusetts

Neurology is Dr. Rajarajan's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Rajarajan is licensed in Massachusetts.

Specialties and state licenses

  • Neurology, MassachusettsPrimaryLicense 1023690 · taxonomy 2084N0400X

Neurologists near Dr. Rajarajan

Counts of neurologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Prashanth Rajarajan's patients have a median age of 51

Across all payers, Dmand AI patient panel data puts Dr. Rajarajan's median patient age at 51, with 50% women.

Dr. Rajarajan's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 51

Patient panel by sex, all payers

  • Women50%
  • Men50%

Source: Dmand AI Patient Panel Data

Dr. Prashanth Rajarajan wrote 16 Medicare Part D claims in 2024

In 2024, Dr. Rajarajan wrote 16 Medicare Part D claims for 11 patients. 75% of them were for generic drugs.

Part D claims, 202416
Part D patients11

Dr. Rajarajan's Part D claims by kind of drug, 2024

  • Generic12 claims75%
  • Brand-name and other4 claims25%

Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Prashanth Rajarajan offers telehealth to Medicare patients

Dr. Rajarajan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Rajarajan as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. Prashanth Rajarajan received $134 in industry payments in 2025

CMS Open Payments shows 1 general payment to Dr. Rajarajan from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. TG Therapeutics, Inc. paid the most, $134.

Companies that paid Dr. Rajarajan the most, 2025 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Rajarajan

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Prashanth Rajarajan graduated from Icahn School of Medicine at Mount Sinai

Dr. Rajarajan graduated from Icahn School of Medicine at Mount Sinai in 2021.

  1. Medical schoolIcahn School of Medicine at Mount Sinai

Source: Dmand AI Professional Profile Data

Sources for Dr. Prashanth Rajarajan's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Prashanth Rajarajan

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Prashanth Rajarajan's NPI number?

Dr. Prashanth Rajarajan's NPI number is 1730766684. It was assigned on March 26, 2021, and it is active in the NPI Registry.

What kind of doctor is Dr. Prashanth Rajarajan?

Dr. Prashanth Rajarajan is a neurologist in Boston, Massachusetts. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).

Where does Dr. Prashanth Rajarajan practice?

Dr. Rajarajan practices at 75 Francis Street, Boston, MA 02115. Dr. Rajarajan's primary practice is Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham. Dmand AI also links Dr. Rajarajan to 2 medical groups and 1 hospital outpatient department.

What is Dr. Prashanth Rajarajan's office phone number?

The practice phone on file for Dr. Rajarajan is (617) 732-5500.

What is Dr. Prashanth Rajarajan's medical license number?

Dr. Rajarajan holds Massachusetts license 1023690.

Which hospitals is Dr. Prashanth Rajarajan affiliated with?

Dr. Rajarajan practices at Brigham and Women's Hospital in Boston, Massachusetts.

What medical group is Dr. Prashanth Rajarajan part of?

Dr. Rajarajan is linked to Massachusetts General Physicians Organization (MGPO). Dmand AI links Dr. Rajarajan to 2 more medical groups.

Does Dr. Prashanth Rajarajan accept Medicare?

Yes. CMS lists Dr. Rajarajan as accepting Medicare assignment.

Does Dr. Prashanth Rajarajan offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Rajarajan as offering telehealth services.

Where did Dr. Prashanth Rajarajan go to medical school?

Dr. Rajarajan graduated from Icahn School of Medicine at Mount Sinai in 2021.

Has Dr. Prashanth Rajarajan received payments from drug or device companies?

CMS Open Payments shows $134 in general payments to Dr. Rajarajan from 1 company from 2025 to 2025. The largest total came from TG Therapeutics, Inc.

How long has Dr. Prashanth Rajarajan been practicing?

Dr. Rajarajan graduated from medical school in 2021, 5 years ago.

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