Arun Kumar Arumugam Raajasekar, MD
Hematology & Oncology Physician · Mountain View, CA
Arun Kumar Arumugam Raajasekar, MD is a hematology & oncology physician with a practice address in Mountain View, California, and NPI 1801143722, issued on Aug 9, 2012. Check the license (California A176019, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Arun Kumar Arumugam Raajasekar
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- A176019 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2505 Hospital Dr, Mountain View, CA 94040
- Phone
- (650) 988-8338
- Enumerated
- Aug 9, 2012
- Record last updated
- Feb 12, 2026
- Fax
- (650) 962-4594
- Medicare enrollment
- Enrolled (PECOS I20241204003691); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 1,583 in California → Look up another NPI →
Also registered at 2505 Hospital Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jiali Li, M.D., PH.DHematology & Oncology Physician1396981445
- Harumi NishidaPsychologist1326515396
- Shiva SinghalMedical Oncology Physician1942456389
Verify Arun Kumar Arumugam Raajasekar in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A176019Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
74% more Medicare Part D claims than the average hematology & oncology physician in 2024
1,530 Medicare Part D claims for 268 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. 52 claims were for opioids.
Most prescribed
- Prednisone155 claims
- Abiraterone Acetate147 claims
- Prochlorperazine Maleate133 claims
- Xtandi130 claims
- Ondansetron Hcl119 claims
- Dexamethasone61 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 82.4 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- EL Camino Health Medical Network LLCMountain View, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Arun Kumar Arumugam Raajasekar among 1,583 hematology & oncology physician records in California
Arun Kumar Arumugam Raajasekar, MD is one of 1,583 hematology & oncology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 75% of them.
- NPI issued2012 · 75% of these records are older, 21% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2010 · median 2003 among the 1,124 with a school on file
- Record last updated2026 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in California
There are 1,583 hematology & oncology physician records in California.
All 1,583 in California → Every provider in Mountain View → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- James Heckmann, MDMountain View, CA 940401487660023
- Jiali Li, M.D., PH.DMountain View, CA 940401396981445
- Derrick Wong, M.D.Mountain View, CA 940401194941104
- Hanhsing Wu, MDMountain View, CA 940401114034832
- Juliet Kral, MDMenlo Park, CA 940251225046188
- Gail Brown, M.D.Woodside, CA 940621750402996
- Sandra Canales, MDRedwood City, CA 940631831277474
- Linda Hoang, M.D.Redwood City, CA 940631811253214
Common questions
What is Arun Kumar Arumugam Raajasekar, MD's NPI number?
Arun Kumar Arumugam Raajasekar, MD's National Provider Identifier (NPI) is 1801143722, issued on Aug 9, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Arun Kumar Arumugam Raajasekar, MD located?
The NPPES record lists a practice address at 2505 Hospital Dr, Mountain View, CA, 94040. Phone: (650) 988-8338. Providers update this record themselves, so call before visiting.
How can I verify Arun Kumar Arumugam Raajasekar, MD's license?
NPPES lists California license number A176019, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Arun Kumar Arumugam Raajasekar, MD prescribe under Medicare Part D?
In 2024, Arun Kumar Arumugam Raajasekar, MD had 1,530 Medicare Part D claims for 268 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is Arun Kumar Arumugam Raajasekar, MD's MIPS final score?
The 2023 MIPS final score is 82.4 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.