Dr. Walavan Sivakumar, MD
- 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
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Saint John's Physician Partners
Multi-specialty group site · Torrance, California
Find Dr. Sivakumar's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
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
- 1952627911NPI Registry (opens in a new tab)
- 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
- Get number
- 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 Partners5215 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.
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.
| Site | EHR vendor and product |
|---|---|
| Saint John's Physician Partners | 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. 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, CaliforniaPrimary
- Utah license
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.
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.
Need commercial claims for Dr. Sivakumar?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Sivakumar and other neurosurgeons in California.
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.
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
- High blood pressure75%
- High cholesterol75%
- Arthritis61%
- Stroke or TIA43%
- Diabetes40%
- Chronic kidney disease34%
- Ischemic heart disease33%
- 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.
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.
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
- Garni Barkhoudarian, MD7 shared papers
- William Tupper Couldwell, MD7 shared papers
- Daniel F. Kelly, MD7 shared papers
Recent publications by Dr. Sivakumar
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.
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
- 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.
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
- 2018
- Top Southern California Rising Stars Award
- 2016
- Third Place Resident Award
- 2015
- Heilbrun Lectureship Award
- 2014
- Elected Young Neurosurgeons Committee
- William H. Sweet Award
- 2013
- Top ePoster Award
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.
- Medical school
- Board certified in 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
- HMO8
- PPO8
- Medicare7
- EPO4
- POS4
- Medicaid2
Source: Dmand AI Insurance Network Data
Sources for Dr. Walavan Sivakumar'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand 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 (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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. 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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