Dr. Walavan Sivakumar, MD

  • Torrance, CA
  • Neurosurgeon
NPI1952627911PAC ID4688891393
Medicare services, 2024
995
Medicare patients, 2024
433
Part D claims, 2024
30
Publications
50
MIPS score, 2024
90
Practice address
5215 Torrance Blvd Suite 300 Suite 300, Torrance, CA 90503-4009
Practice phone
Call (424) 212-5361
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

Saint John's Physician Partners

Multi-specialty group site · Torrance, California

See all 5 affiliations

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Dr. Walavan Sivakumar is a neurosurgeon in Torrance, California

Dr. Sivakumar practices at Saint John's Physician Partners in Torrance, California.

Dr. Sivakumar's NPI, 1952627911, was assigned on April 15, 2010. Dr. Sivakumar graduated from Keck School of Medicine of USC in 2010. Dr. Sivakumar holds California license A135375.

NPI and contact details
Medicare PAC ID
4688891393
NPI enumeration date
April 15, 2010
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(424) 212-5361
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Male
Estimated age
42
Medical school graduation
2010

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

Dr. Walavan Sivakumar practices at Saint John's Physician Partners in Torrance, California

Dr. Sivakumar's primary practice is Saint John's Physician Partners, at 5215 Torrance Blvd Suite 300 Suite 300, Torrance, CA 90503-4009. The practice phone is (424) 212-5361.

  • Saint John's Physician Partners
    5215 Torrance Blvd Suite 300 Suite 300, Torrance, CA 90503-4009Phone(424) 212-5361

Source: Dmand AI Affiliation Data

Dr. Walavan Sivakumar is affiliated with 4 sites of care and 1 medical group

Dr. Sivakumar's primary practice is Saint John's Physician Partners in Torrance, California. Dr. Sivakumar is also affiliated with Providence Little Company of Mary Medical Center Torrance. The medical group on file is Saint John's Physician Partners. Dmand AI also links Dr. Sivakumar to 1 more hospital and 1 home health agency, each named with a free account.

See all 5 affiliations for Dr. Sivakumar

Source: Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Walavan Sivakumar's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sivakumar practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Saint John's Physician PartnersAvailable with a free account
+3 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Walavan Sivakumar is one of 846 neurosurgeons in California

Neurological surgery is Dr. Sivakumar's primary specialty in the NPI Registry, under taxonomy code 207T00000X. Dr. Sivakumar is board certified in neurological surgery by the American Board of Neurological Surgery. Dmand AI has Dr. Sivakumar's licenses on file in 2 states: California and Utah.

Specialties and state licenses

  • Neurological surgery, CaliforniaPrimaryLicense A135375 · 2015 to 2026 · taxonomy 207T00000X
  • Utah license2011 to 2018

Clinical focus

Dmand AI lists craniotomy, lower back pain, neck pain and spine problems, spinal fusion and thoracic spine disorders among the conditions Dr. Sivakumar treats.

Neurosurgeons near Dr. Sivakumar

Counts of neurosurgeons 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. Walavan Sivakumar billed Medicare for 995 services in 2024

CMS data shows 995 Medicare services from Dr. Sivakumar across 16 procedure codes in 2024, for 433 Medicare patients. Medicare paid $122,159 for them.

Medicare services, 2024995
Medicare patients433
Paid by Medicare$122,159
Procedure codes16

Dr. Sivakumar's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 8392024: 8795%
Surgery
2023: 482024: 7863%
Lab and pathology
2023: 142024: 2043%
Imaging
2023: 252024: 1828%

Where Dr. Sivakumar's Medicare services took place, 2024

  • In an office53153%
  • In a facility46447%

Dr. Sivakumar compared with the California median for neurosurgeons, 2024

  • Dr. Sivakumar
  • California median
Medicare services
995vs 2164.6 times
Medicare patients
433vs 1542.8 times

Medians across 679 neurosurgeons in California with Dmand AI profiles that report each measure.

Dr. Sivakumar'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.

See all procedures by Dr. Sivakumar

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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Sivakumar and other neurosurgeons in California.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Walavan Sivakumar treated 433 Medicare patients in 2024, average age 76

CMS counts 433 Medicare patients who saw Dr. Sivakumar in 2024. The largest group is 75 to 84, with 170 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 32% are also on Medicaid. Their average risk score is 1.87, 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. Sivakumar's median patient age at 68, with 58% women.

Medicare patients, 2024433
Average age76
Average risk score1.87
Also on Medicaid32%

Dr. Sivakumar's Medicare patients by age, 2024

Dr. Sivakumar's Medicare patients by sex, 2024

  • Women24356%
  • Men19044%

Chronic conditions among Dr. Sivakumar's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis61%
  4. Stroke or TIA43%
  5. Diabetes40%
  6. Chronic kidney disease34%
  7. Ischemic heart disease33%
  8. Mood disorders33%

Share of Medicare patients with each condition. A patient can have several.

Dr. Sivakumar's patients across all payers

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

Patient panel by age, all payers

Median age 68

Patient panel by sex, all payers

  • Women58%
  • Men42%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Walavan Sivakumar wrote 30 Medicare Part D claims in 2024

In 2024, Dr. Sivakumar wrote 30 Medicare Part D claims for 18 patients. 97% of them were for generic drugs.

Part D claims, 202430
Part D patients18

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

  • Generic29 claims97%
  • Brand-name and other1 claims3%

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

Dr. Walavan Sivakumar scored 90 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 90 out of 100 for Dr. Sivakumar for performance year 2024, reported as part of a group. Dr. Sivakumar accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Sivakumar as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Sivakumar's MIPS scores, performance year 2024

  • 90of 100Final score
  • 96.1of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 72of 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. Walavan Sivakumar has 50 publications on record

Dmand AI links 50 papers to Dr. Sivakumar, published from 2010 to 2025. 2014 was the busiest year, with 5. The most frequent topics are Pituitary Neoplasms, Postoperative Complications and Adenoma. Dr. Sivakumar has published most often in Neurosurg Focus. Dr. Sivakumar's most frequent co-authors are Garni Barkhoudarian, MD, William Tupper Couldwell, MD and Daniel F. Kelly, MD.

Papers50
Years published2010 to 2025

Dr. Sivakumar's papers by year, 2014 to 2025

Topics Dr. Sivakumar writes about most

  • Pituitary Neoplasms
  • Postoperative Complications
  • Adenoma
  • Magnetic Resonance Imaging
  • Neurosurgical Procedures
  • Tomography, X-Ray Computed
  • Brain Neoplasms
  • Chordoma

Dr. Sivakumar's most frequent co-authors

Recent publications by Dr. Sivakumar

See all 50 publications and co-authors

See who Dr. Sivakumar researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Sivakumar works with, so you can find a warm path to the right neurosurgeons.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Walavan Sivakumar received $130,030 in industry payments from 2017 to 2025

CMS Open Payments shows 255 general payments to Dr. Sivakumar from 44 drug and device companies from 2017 to 2025. Consulting fees make up the largest share, 75% of the total. Stryker Corporation paid the most, $105,856.

General payments to Dr. Sivakumar by program year, 2017 to 2025

General payments to Dr. Sivakumar by kind, 2017 to 2025

$130Kin total
  • Consulting fees$97,05075%
  • Travel and lodging$17,95014%
  • Education speaker fees$7,2506%
  • Food and beverage$5,1534%
  • Other$2,6262%

Companies that paid Dr. Sivakumar the most, 2017 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Sivakumar

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

Dr. Walavan Sivakumar has 14 awards and honors on record

Dmand AI lists 14 awards for Dr. Sivakumar, most recently Top Southern California Rising Stars Award in 2018. Dr. Sivakumar serves on AANS/CNS Section on Tumors and AANS Young Neurosurgeons Committee.

Awards and honors for Dr. Sivakumar

  1. 2018
    • Top Southern California Rising Stars Award
  2. 2016
    • Third Place Resident Award
  3. 2015
    • Heilbrun Lectureship Award
  4. 2014
    • Elected Young Neurosurgeons Committee
    • William H. Sweet Award
  5. 2013
    • Top ePoster Award
See all 14 awards

Dr. Sivakumar's committees and leadership roles

AANS/CNS Section on TumorsExecutive Committee
2016 to present
AANS Young Neurosurgeons CommitteeMember
2014 to present

Source: Dmand AI Professional Profile Data

Dr. Walavan Sivakumar graduated from Keck School of Medicine of USC

Dr. Sivakumar graduated from Keck School of Medicine of USC in 2010. Dr. Sivakumar is a member of AANS and CNS.

  1. Medical schoolKeck School of Medicine of USC
  2. Board certified in neurological surgeryAmerican Board of Neurological Surgery

Source: Dmand AI Professional Profile Data

Dr. Walavan Sivakumar accepts plans from 15 insurance carriers

Dr. Sivakumar is in network with 15 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 8. Check the plan with the practice before a visit.

  • Aetna
  • Elevance
  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • HCSC
  • Blue Cross Blue Shield of Massachusetts
  • LA Care
  • Alliant Health Plans
  • +7 more carriersWith a free account

Plan types Dr. Sivakumar accepts, by number of carriers

  1. HMO8
  2. PPO8
  3. Medicare7
  4. EPO4
  5. POS4
  6. Medicaid2

Source: Dmand AI Insurance Network Data

Sources for Dr. Walavan Sivakumar'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 Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network 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. Walavan Sivakumar

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. Walavan Sivakumar's NPI number?

Dr. Walavan Sivakumar's NPI number is 1952627911. It was assigned on April 15, 2010, and it is active in the NPI Registry.

What kind of doctor is Dr. Walavan Sivakumar?

Dr. Walavan Sivakumar is a neurosurgeon in Torrance, California. The primary specialty in the NPI Registry is Neurological Surgery Physician (taxonomy code 207T00000X).

Where does Dr. Walavan Sivakumar practice?

Dr. Sivakumar practices at 5215 Torrance Blvd Suite 300 Suite 300, Torrance, CA 90503-4009. Dr. Sivakumar's primary practice is Saint John's Physician Partners in Torrance, California. Dmand AI also links Dr. Sivakumar to 1 hospital and 1 home health agency.

What is Dr. Walavan Sivakumar's office phone number?

The practice phone on file for Dr. Sivakumar is (424) 212-5361.

What is Dr. Walavan Sivakumar's medical license number?

Dr. Sivakumar holds California license A135375, one of the licenses on file in 2 states.

Which states has Dr. Walavan Sivakumar been licensed in?

Dmand AI has state licenses on file for Dr. Sivakumar in California (2015 to 2026) and Utah (2011 to 2018).

Which hospitals is Dr. Walavan Sivakumar affiliated with?

Dr. Sivakumar is affiliated with Providence Little Company of Mary Medical Center Torrance. Dmand AI links Dr. Sivakumar to 1 more hospital.

What medical group is Dr. Walavan Sivakumar part of?

Dr. Sivakumar is linked to Saint John's Physician Partners.

Does Dr. Walavan Sivakumar accept Medicare?

Yes. CMS data shows Dr. Sivakumar billed Medicare for 995 services in 2024, and Dr. Sivakumar accepts Medicare assignment.

Does Dr. Walavan Sivakumar offer telehealth?

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

Show 10 more questionsShow fewer questions

What is Dr. Walavan Sivakumar's MIPS score?

Dr. Sivakumar's MIPS final score for performance year 2024 is 90 out of 100, reported as part of a group.

How many Medicare patients does Dr. Walavan Sivakumar see?

CMS counts 433 Medicare patients who saw Dr. Sivakumar in 2024, with an average age of 76.

Is Dr. Walavan Sivakumar board certified?

Yes. Dr. Sivakumar is board certified in neurological surgery by the American Board of Neurological Surgery.

What services does Dr. Walavan Sivakumar bill to Medicare?

In 2024, Dr. Sivakumar's most billed Medicare services were office visit, established patient (99214), hospital inpatient care (99233) and critical care (99291).

Where did Dr. Walavan Sivakumar go to medical school?

Dr. Sivakumar graduated from Keck School of Medicine of USC in 2010.

Has Dr. Walavan Sivakumar received payments from drug or device companies?

CMS Open Payments shows $130,030 in general payments to Dr. Sivakumar from 44 companies from 2017 to 2025. The largest total came from Stryker Corporation.

How long has Dr. Walavan Sivakumar been practicing?

Dr. Sivakumar graduated from medical school in 2010, 16 years ago.

Does Dr. Walavan Sivakumar do research?

Dmand AI links 50 publications to Dr. Sivakumar, published from 2010 to 2025.

Who does Dr. Walavan Sivakumar publish with?

Dr. Sivakumar's most frequent co-authors are Garni Barkhoudarian, MD (7 shared papers), William Tupper Couldwell, MD (7 shared papers) and Daniel F. Kelly, MD (7 shared papers).

What insurance does Dr. Walavan Sivakumar accept?

Dr. Sivakumar is in network with 15 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 8. Check the plan with the practice before a visit.

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