Dr. Rajarshi Mazumder, MD, MPH
- Medicare services, 2024
- 114
- Medicare patients, 2024
- 77
- Part D claims, 2024
- 266
- MIPS score, 2024
- 94
- Hospital affiliations
- 2
- Practice address
- 200 Medical Plz, Los Angeles, CA 90024
- Practice phone
- Call (310) 794-9206
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Peter Morton UCLA Medical Building
Los Angeles, California
Find Dr. Mazumder's professional email, personal email and mobile number
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Dr. Rajarshi Mazumder is a neurologist in Los Angeles, California
Dr. Mazumder practices at Peter Morton UCLA Medical Building in Los Angeles, California.
Dr. Mazumder's NPI, 1174936546, was assigned on June 3, 2014. Dr. Mazumder graduated from Oregon Health Sciences University School of Medicine in 2014. Dr. Mazumder holds California license A143469.
- NPI
- 1174936546NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1254656218
- NPI enumeration date
- June 3, 2014
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (310) 794-9206
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 38
- Medical school graduation
- 2014
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Rajarshi Mazumder practices at Peter Morton UCLA Medical Building in Los Angeles, California
Dr. Mazumder's primary practice is Peter Morton UCLA Medical Building, at 200 Medical Plz, Los Angeles, CA 90024 in Los Angeles County. The practice phone is (310) 794-9206.
- Peter Morton UCLA Medical Building200 Medical Plz, Los Angeles, CA 90024 · Los Angeles CountyPhone(310) 794-9206
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Rajarshi Mazumder is affiliated with 4 sites of care and 1 medical group
Dr. Mazumder's primary practice is Peter Morton UCLA Medical Building in Los Angeles, California. Dr. Mazumder is also affiliated with Ronald Reagan UCLA Medical Center. The medical group on file is UCLA Neurology. Dmand AI also links Dr. Mazumder to 1 more hospital and 1 group practice or clinic, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Rajarshi Mazumder's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mazumder practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Peter Morton UCLA Medical Building | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Rajarshi Mazumder is one of 2,207 neurologists in California
Neurology is Dr. Mazumder's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Mazumder is licensed in California.
Specialties and state licenses
- Neurology, CaliforniaPrimary
Neurologists near Dr. Mazumder
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. Rajarshi Mazumder billed Medicare for 114 services in 2024
CMS data shows 114 Medicare services from Dr. Mazumder across 5 procedure codes in 2024, for 77 Medicare patients. Medicare paid $14,859 for them.
Dr. Mazumder's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 02024: 57
- Office and hospital visits
- 2023: 1032024: 5745%
Where Dr. Mazumder's Medicare services took place, 2024
- In an office1311%
- In a facility10189%
Dr. Mazumder compared with the California median for neurologists, 2024
- Dr. Mazumder
- California median
- Medicare services
- 114vs 40472% below
- Medicare patients
- 77vs 19059% below
- Part D claims
- 220vs 32432% below
Medians across 1,995 neurologists in California with Dmand AI profiles that report each measure.
Dr. Mazumder's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Mazumder and other neurologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Rajarshi Mazumder treated 77 Medicare patients in 2024, average age 68
CMS counts 77 Medicare patients who saw Dr. Mazumder in 2024. The largest group is 65 to 74, with 25 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 49% are also on Medicaid. Their average risk score is 2.86, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Mazumder's median patient age at 40, with 50% women.
Dr. Mazumder's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Mazumder's Medicare patients by sex, 2024
- Women4660%
- Men3140%
Chronic conditions among Dr. Mazumder's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis53%
- Stroke or TIA47%
- Diabetes44%
- Mood disorders44%
- Depression39%
- Ischemic heart disease39%
Share of Medicare patients with each condition. A patient can have several.
Dr. Mazumder's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 40
Patient panel by sex, all payers
- Women50%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Rajarshi Mazumder wrote 266 Medicare Part D claims in 2024
In 2024, Dr. Mazumder wrote 266 Medicare Part D claims for 22 patients. 59% of them were for generic drugs. CMS names the drug for 220 of them, across 10 drugs with 11 or more claims each, at $118,779 in total drug cost. In 2023, CMS named 308 claims across 14 drugs.
Dr. Mazumder's Part D claims by kind of drug, 2024
- Generic156 claims59%
- Brand-name and other110 claims41%
Dr. Mazumder's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 3082024: 22029%
Drugs named by CMS: 10 in 2024, 14 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Rajarshi Mazumder scored 94 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 94 out of 100 for Dr. Mazumder for performance year 2024, reported as part of a group. Dr. Mazumder accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Mazumder as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Mazumder's MIPS scores, performance year 2024
- 94of 100Final score
- 86.4of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 67of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Rajarshi Mazumder received $1,425 in industry payments from 2018 to 2025
CMS Open Payments shows 20 general payments to Dr. Mazumder from 6 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 100% of the total. Neuropace, Inc. paid the most, $542.
General payments to Dr. Mazumder by program year, 2018 to 2025
Companies that paid Dr. Mazumder the most, 2018 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Rajarshi Mazumder graduated from Oregon Health Sciences University School of Medicine
Dr. Mazumder graduated from Oregon Health Sciences University School of Medicine in 2014.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Rajarshi Mazumder's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Rajarshi Mazumder
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. Rajarshi Mazumder's NPI number?
Dr. Rajarshi Mazumder's NPI number is 1174936546. It was assigned on June 3, 2014, and it is active in the NPI Registry.
What kind of doctor is Dr. Rajarshi Mazumder?
Dr. Rajarshi Mazumder is a neurologist in Los Angeles, California. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).
Where does Dr. Rajarshi Mazumder practice?
Dr. Mazumder practices at 200 Medical Plz, Los Angeles, CA 90024. Dr. Mazumder's primary practice is Peter Morton UCLA Medical Building in Los Angeles, California. Dmand AI also links Dr. Mazumder to 1 hospital and 1 group practice or clinic.
What is Dr. Rajarshi Mazumder's office phone number?
The practice phone on file for Dr. Mazumder is (310) 794-9206.
What is Dr. Rajarshi Mazumder's medical license number?
Dr. Mazumder holds California license A143469.
Which hospitals is Dr. Rajarshi Mazumder affiliated with?
Dr. Mazumder is affiliated with Ronald Reagan UCLA Medical Center. Dmand AI links Dr. Mazumder to 1 more hospital.
What medical group is Dr. Rajarshi Mazumder part of?
Dr. Mazumder is linked to UCLA Neurology.
Does Dr. Rajarshi Mazumder accept Medicare?
Yes. CMS data shows Dr. Mazumder billed Medicare for 114 services in 2024, and Dr. Mazumder accepts Medicare assignment.
Does Dr. Rajarshi Mazumder offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Mazumder as offering telehealth services.
What is Dr. Rajarshi Mazumder's MIPS score?
Dr. Mazumder's MIPS final score for performance year 2024 is 94 out of 100, reported as part of a group.
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How many Medicare patients does Dr. Rajarshi Mazumder see?
CMS counts 77 Medicare patients who saw Dr. Mazumder in 2024, with an average age of 68.
What services does Dr. Rajarshi Mazumder bill to Medicare?
In 2024, Dr. Mazumder's most billed Medicare services were nerve and brain test (95720), hospital inpatient care (99223) and hospital inpatient care (99233).
Where did Dr. Rajarshi Mazumder go to medical school?
Dr. Mazumder graduated from Oregon Health Sciences University School of Medicine in 2014.
What drugs does Dr. Rajarshi Mazumder prescribe most?
In 2024 Medicare Part D data, Dr. Mazumder's most prescribed drugs by claims were Briviact, Levetiracetam and Lacosamide.
Has Dr. Rajarshi Mazumder received payments from drug or device companies?
CMS Open Payments shows $1,425 in general payments to Dr. Mazumder from 6 companies from 2018 to 2025. The largest total came from Neuropace, Inc.
How long has Dr. Rajarshi Mazumder been practicing?
Dr. Mazumder graduated from medical school in 2014, 12 years ago.
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