Sean William Kaloostian

  • Riverside, CA
  • Neurosurgeon
NPI1750607099PAC ID8527369693
Medicare services, 2024
247
Medicare patients, 2024
90
Part D claims, 2020
36
Publications
8
Hospital affiliations
2
Practice address
4445 Magnolia Avenue, Riverside, CA 92501
Practice phone
Call (951) 788-3000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Riverside Community Hospital

Hospital · Riverside, California

See all 7 affiliations

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Sean William Kaloostian is a neurosurgeon in Riverside, California

Sean Kaloostian practices at Riverside Community Hospital in Riverside, California, part of HCA Healthcare.

Sean Kaloostian's NPI, 1750607099, was assigned on April 12, 2010. Sean Kaloostian graduated from David Geffen School of Medicine at UCLA in 2010. Sean Kaloostian's California license number on file is A118917.

NPI and contact details
Medicare PAC ID
8527369693
NPI enumeration date
April 12, 2010
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(951) 788-3000
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)

Sean William Kaloostian practices at Riverside Community Hospital in Riverside, California

Sean Kaloostian's primary practice is Riverside Community Hospital, at 4445 Magnolia Avenue, Riverside, CA 92501 in Riverside County. The practice phone is (951) 788-3000.

Source: Dmand AI Affiliation Data

Sean William Kaloostian is affiliated with 5 sites of care and 2 medical groups

Sean Kaloostian's primary practice is Riverside Community Hospital in Riverside, California, part of HCA Healthcare. Sean Kaloostian is also affiliated with Riverside Medical Center. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Sean Kaloostian to 2 more group practices and clinics, 1 physician office and 1 medical group, each named with a free account.

See all 7 affiliations for Sean Kaloostian

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

Dmand AI tracks the EHR system at Sean William Kaloostian's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Sean Kaloostian practices, 5 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Riverside Community HospitalAvailable with a free account
+4 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Sean William Kaloostian is one of 846 neurosurgeons in California

Neurological surgery is Sean Kaloostian's primary specialty in the NPI Registry, under taxonomy code 207T00000X. Sean Kaloostian is board certified in neurological surgery by the American Board of Neurological Surgery. Sean Kaloostian has a license on file in California.

Specialties and state licenses

  • Neurological surgery, CaliforniaPrimaryLicense A118917 · 2011 to 2025 · taxonomy 207T00000X

Neurosurgeons near Sean Kaloostian

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

Sean William Kaloostian billed Medicare for 247 services in 2024

CMS data shows 247 Medicare services from Sean Kaloostian across 3 procedure codes in 2024, for 90 Medicare patients. Medicare paid $28,199 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024247
Medicare patients90
Paid by Medicare$28,199
Procedure codes3

Sean Kaloostian's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 3702024: 24733%

Sean Kaloostian compared with the California median for neurosurgeons, 2024

  • Sean Kaloostian
  • California median
Medicare services
247vs 21614% above
Medicare patients
90vs 15442% below
Part D claims
36vs 2638% above

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

Sean Kaloostian'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 Sean Kaloostian

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

Sean William Kaloostian treated 90 Medicare patients in 2024, average age 76

CMS counts 90 Medicare patients who saw Sean Kaloostian in 2024. The largest group is 65 to 74, with 30 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 60% are also on Medicaid. Their average risk score is 2.90, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Sean Kaloostian's median patient age at 64, with 50% women.

Medicare patients, 202490
Average age76
Average risk score2.90
Also on Medicaid60%

Sean Kaloostian's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Sean Kaloostian's Medicare patients by sex, 2024

  • Women4449%
  • Men4651%

Chronic conditions among Sean Kaloostian's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Stroke or TIA71%
  4. Diabetes52%
  5. Arthritis51%
  6. Chronic kidney disease44%
  7. Alzheimer's and dementia43%
  8. Mood disorders42%

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

Sean Kaloostian's patients across all payers

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

Patient panel by age, all payers

Median age 64

Patient panel by sex, all payers

  • Women50%
  • Men50%

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

Sean William Kaloostian wrote 36 Medicare Part D claims in 2020

In 2020, Sean Kaloostian wrote 36 Medicare Part D claims. Every claim was for a generic drug. They cover 2 drugs, with $948 in total drug cost. In 2019, CMS named 19 claims across 1 drug.

Part D claims, 202036
Drugs named by CMS2
Total drug cost$948

Sean Kaloostian's most prescribed drugs by claims, 2020

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, 2019 to 2020

  • 2019
  • 2020
Claims for drugs CMS names
2019: 192020: 3689%

Drugs named by CMS: 2 in 2020, 1 in 2019.

See all prescribing by Sean Kaloostian

Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026

How Sean William Kaloostian takes part in Medicare

Sean Kaloostian accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Sean William Kaloostian has 8 publications on record

Dmand AI links 8 papers to Sean Kaloostian, published from 2015 to 2021. 2018 was the busiest year, with 2. Sean Kaloostian has published most often in Cureus. Sean Kaloostian's most frequent co-authors are Paul E. Kaloostian, MD, Jefferson William Chen, MD, PhD and Omid Moshtaghi, MD.

Papers8
Years published2015 to 2021

Sean Kaloostian's papers by year, 2015 to 2021

Sean Kaloostian's most frequent co-authors

Recent publications by Sean Kaloostian

See all 8 publications and co-authors

See who Sean Kaloostian researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Sean Kaloostian 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

Sean William Kaloostian received $132 in industry payments from 2018 to 2019

CMS Open Payments shows 4 general payments to Sean Kaloostian from 2 drug and device companies from 2018 to 2019. Food and beverage make up the largest share, 100% of the total. Integra LifeSciences Corporation paid the most, $117.

General payments to Sean Kaloostian by program year, 2018 to 2019

Companies that paid Sean Kaloostian the most, 2018 to 2019

Share is of all general payments to this clinician.

See all payments to Sean Kaloostian

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

Sean William Kaloostian graduated from David Geffen School of Medicine at UCLA

Sean Kaloostian graduated from David Geffen School of Medicine at UCLA in 2010. Sean Kaloostian is a member of AANS and ACS.

  1. Medical schoolDavid Geffen School of Medicine at UCLA
  2. Board certified in neurological surgeryAmerican Board of Neurological Surgery

Source: Dmand AI Professional Profile Data

Sean William Kaloostian accepts plans from 5 insurance carriers

Sean Kaloostian is in network with 5 carriers, including Elevance, Kaiser Permanente and Molina. HMO plans come from the most carriers, 4. Check the plan with the practice before a visit.

  • Elevance
  • Kaiser Permanente
  • Molina
  • CMS Medicare
  • Humana

Plan types Sean Kaloostian accepts, by number of carriers

  1. HMO4
  2. Medicare3
  3. POS2
  4. EPO1

Source: Dmand AI Insurance Network Data

Sources for Sean William Kaloostian'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 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 and Drug (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (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)
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 Sean William Kaloostian

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

What is Sean William Kaloostian's NPI number?

Sean William Kaloostian's NPI number is 1750607099. It was assigned on April 12, 2010, and it is active in the NPI Registry.

What does Sean William Kaloostian specialize in?

Sean William Kaloostian is a neurosurgeon in Riverside, California. The primary specialty in the NPI Registry is Neurological Surgery Physician (taxonomy code 207T00000X).

Where does Sean William Kaloostian practice?

Sean Kaloostian practices at 4445 Magnolia Avenue, Riverside, CA 92501. Sean Kaloostian's primary practice is Riverside Community Hospital in Riverside, California, part of HCA Healthcare. Dmand AI also links Sean Kaloostian to 2 group practices and clinics, 1 physician office and 1 medical group.

What is Sean William Kaloostian's office phone number?

The practice phone on file for Sean Kaloostian is (951) 788-3000.

What is Sean William Kaloostian's medical license number?

Sean Kaloostian's California license number on file is A118917.

Which hospitals is Sean William Kaloostian affiliated with?

Sean Kaloostian practices at Riverside Community Hospital in Riverside, California. Sean Kaloostian is also affiliated with Riverside Medical Center.

What medical group is Sean William Kaloostian part of?

Sean Kaloostian is linked to Southern California Permanente Medical Group. Dmand AI links Sean Kaloostian to 1 more medical group.

Does Sean William Kaloostian accept Medicare?

Yes. CMS data shows Sean Kaloostian billed Medicare for 247 services in 2024, and Sean Kaloostian accepts Medicare assignment.

How many Medicare patients does Sean William Kaloostian see?

CMS counts 90 Medicare patients who saw Sean Kaloostian in 2024, with an average age of 76.

Is Sean William Kaloostian board certified?

Yes. Sean Kaloostian is board certified in neurological surgery by the American Board of Neurological Surgery.

Show 8 more questionsShow fewer questions

What services does Sean William Kaloostian bill to Medicare?

In 2024, Sean Kaloostian's most billed Medicare services were critical care (99291), hospital inpatient care (99232) and hospital inpatient care (99222).

Where did Sean William Kaloostian go to medical school?

Sean Kaloostian graduated from David Geffen School of Medicine at UCLA in 2010.

What drugs does Sean William Kaloostian prescribe most?

In 2020 Medicare Part D data, Sean Kaloostian's most prescribed drugs by claims were Gabapentin and Celecoxib.

Has Sean William Kaloostian received payments from drug or device companies?

CMS Open Payments shows $132 in general payments to Sean Kaloostian from 2 companies from 2018 to 2019. The largest total came from Integra LifeSciences Corporation.

How long has Sean William Kaloostian been practicing?

Sean Kaloostian graduated from medical school in 2010, 16 years ago.

Does Sean William Kaloostian do research?

Dmand AI links 8 publications to Sean Kaloostian, published from 2015 to 2021.

Who does Sean William Kaloostian publish with?

Sean Kaloostian's most frequent co-authors are Paul E. Kaloostian, MD (5 shared papers), Jefferson William Chen, MD, PhD (1 shared paper) and Omid Moshtaghi, MD (1 shared paper).

What insurance does Sean William Kaloostian accept?

Sean Kaloostian is in network with 5 carriers, including Elevance, Kaiser Permanente and Molina. HMO plans come from the most carriers, 4. Check the plan with the practice before a visit.

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