Dr. Christopher Desimone, DO

  • West Hills, CA
  • General surgeon
NPI1942620067PAC ID0143558767
Medicare services, 2024
386
Medicare patients, 2026
157
Part D claims, 2026
120
Hospital affiliations
2
Industry payments
$268,769
Practice address
7300 Medical Center Dr, West Hills, CA 91307
Practice phone
Call (818) 676-4000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

UCLA West Valley Medical Center

Hospital · West Hills, California

See all 3 affiliations

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Dr. Christopher Desimone is a general surgeon in West Hills, California

Dr. Desimone practices at UCLA West Valley Medical Center in West Hills, California, part of University of California Health.

Dr. Desimone's NPI, 1942620067, was assigned on April 17, 2014. Dr. Desimone graduated from Touro College of Osteopathic Medicine - New York in 2014. Dr. Desimone holds California license 20A16210.

NPI and contact details
Medicare PAC ID
0143558767
NPI enumeration date
April 17, 2014
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(818) 676-4000
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
38
Medical school graduation
2014

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

Dr. Christopher Desimone practices at UCLA West Valley Medical Center in West Hills, California

Dr. Desimone's primary practice is UCLA West Valley Medical Center, at 7300 Medical Center Dr, West Hills, CA 91307 in Los Angeles County. The practice phone is (818) 676-4000.

Source: Dmand AI Affiliation Data

Dr. Christopher Desimone is affiliated with 3 sites of care

Dr. Desimone's primary practice is UCLA West Valley Medical Center in West Hills, California, part of University of California Health. Dr. Desimone is also affiliated with Ronald Reagan UCLA Medical Center. Dmand AI also links Dr. Desimone to 1 more physician office, named with a free account.

See all 3 affiliations for Dr. Desimone

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

Dmand AI tracks the EHR system at Dr. Christopher Desimone's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Desimone practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
UCLA West Valley Medical CenterAvailable with a free account
+2 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Christopher Desimone is one of 2,926 general surgeons in California

Surgery is Dr. Desimone's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Desimone is board certified in surgery by the AOA Board of Surgery. Dr. Desimone is licensed in California.

Specialties and state licenses

  • Surgery, CaliforniaPrimaryLicense 20A16210 · taxonomy 208600000X

Clinical focus

Dmand AI lists abdominal adhesion surgery, abdominal hernia repair surgery, appendectomy, colon removal, esophagus, stomach, or upper small intestine surgery, gallbladder removal, groin hernia surgery and hemorrhoids among the conditions Dr. Desimone treats.

General surgeons near Dr. Desimone

Counts of general surgeons 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. Christopher Desimone billed Medicare for 386 services in 2024

CMS data shows 386 Medicare services from Dr. Desimone across 6 procedure codes in 2024, for 157 Medicare patients. Medicare paid $62,332 for them.

Medicare services, 2024386
Medicare patients157
Paid by Medicare$62,332
Procedure codes6

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

  • 2023
  • 2024
Office and hospital visits
2023: 3762024: 3458%
Surgery
2023: 512024: 4120%

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

  • In an office10226%
  • In a facility28474%

Dr. Desimone compared with the California median for general surgeons, 2024

  • Dr. Desimone
  • California median
Medicare services
386vs 1662.3 times
Medicare patients
157vs 12130% above
Part D claims
79vs 342.3 times

Medians across 2,606 general surgeons in California with Dmand AI profiles that report each measure.

Dr. Desimone'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. Desimone

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

Dr. Christopher Desimone treated 157 Medicare patients in 2026, average age 76

CMS counts 157 Medicare patients who saw Dr. Desimone in 2026. The largest group is 65 to 74, with 68 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 17% are also on Medicaid. Their average risk score is 1.65, 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. Desimone's median patient age at 56, with 45% women.

Medicare patients, 2026157
Average age76
Average risk score1.65
Also on Medicaid17%

Dr. Desimone's Medicare patients by age, 2026

CMS leaves out age groups with fewer than 11 patients.

Dr. Desimone's Medicare patients by sex, 2026

  • Women6139%
  • Men9661%

Chronic conditions among Dr. Desimone's Medicare patients, 2026

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis61%
  4. Ischemic heart disease54%
  5. Atrial fibrillation35%
  6. Diabetes35%
  7. Anxiety31%
  8. Chronic kidney disease31%

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

Dr. Desimone's patients across all payers

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

Patient panel by age, all payers

Median age 56

Patient panel by sex, all payers

  • Women45%
  • Men54%

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

Dr. Christopher Desimone wrote 120 Medicare Part D claims in 2026

In 2026, Dr. Desimone wrote 120 Medicare Part D claims for 66 patients. 99% of them were for generic drugs. CMS names the drug for 79 of them, across 2 drugs with 11 or more claims each, at $395 in total drug cost. In 2023, CMS named 38 claims across 1 drug.

Part D claims, 2026120
Drugs named by CMS2
Total drug cost$395
Part D patients66

Dr. Desimone's Part D claims by kind of drug, 2026

  • Generic119 claims99%
  • Brand-name and other1 claims1%

Dr. Desimone'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.

Drug classes CMS tracks in Dr. Desimone's Part D claims, 2026

  • Opioids45%54 of 120 claims
  • Antibiotics14%17 of 120 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 382024: 79108%

Drugs named by CMS: 2 in 2024, 1 in 2023.

See all prescribing by Dr. Desimone

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. Christopher Desimone ranks in the 96th percentile for hernia repair (minimally invasive) in Medicare

Dr. Desimone accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 33 procedures of hernia repair (minimally invasive) by Dr. Desimone, more than 96% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes

Where Dr. Desimone ranks in Medicare procedure volume

Hernia repair (minimally invasive)
96th percentile33 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)

Hernia repair - groin (open): 1 to 10 procedures (CMS shows small counts as a range)

Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)

Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)

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Dr. Christopher Desimone received $268,769 in industry payments from 2019 to 2025

CMS Open Payments shows 231 general payments to Dr. Desimone from 9 drug and device companies from 2019 to 2025. Education make up the largest share, 89% of the total. Intuitive Surgical, Inc. paid the most, $268,162.

General payments to Dr. Desimone by program year, 2019 to 2025

General payments to Dr. Desimone by kind, 2019 to 2025

$268.8Kin total
  • Education$238,64989%
  • Food and beverage$12,4185%
  • Travel and lodging$11,1894%
  • Speaker and faculty fees$6,5002%
  • Gifts$140%

Companies that paid Dr. Desimone the most, 2019 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Desimone

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

Dr. Christopher Desimone has 1 award and honors on record

Dmand AI lists 1 award for Dr. Desimone, most recently Regional Top Doctor in 2014.

Awards and honors for Dr. Desimone

  1. 2014
    • Regional Top Doctor

Source: Dmand AI Professional Profile Data

Dr. Christopher Desimone graduated from Touro College of Osteopathic Medicine - New York

Dr. Desimone graduated from Touro College of Osteopathic Medicine - New York in 2014. Dr. Desimone is a member of AOA.

  1. Medical schoolTouro College of Osteopathic Medicine - New York
  2. Board certified in surgeryAOA Board of Surgery
  3. Board certified in 2018 - 2027CA State License
  4. Board certified in 1998 - 2017KY State License
  5. Board certified in 2015 - 2019NJ State License

Source: Dmand AI Professional Profile Data

Dr. Christopher Desimone accepts plans from 14 insurance carriers

Dr. Desimone is in network with 14 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Aetna. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.

  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • Aetna
  • Elevance
  • HCSC
  • Blue Cross Blue Shield of Massachusetts
  • Regence Health Plans
  • Alliant Health Plans
  • +6 more carriersWith a free account

Plan types Dr. Desimone accepts, by number of carriers

  1. PPO9
  2. Medicare7
  3. HMO6
  4. EPO3
  5. POS3

Source: Dmand AI Insurance Network Data

Sources for Dr. Christopher Desimone'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)Medicare 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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
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. Christopher Desimone

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. Christopher Desimone's NPI number?

Dr. Christopher Desimone's NPI number is 1942620067. It was assigned on April 17, 2014, and it is active in the NPI Registry.

What kind of doctor is Dr. Christopher Desimone?

Dr. Christopher Desimone is a general surgeon in West Hills, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).

Where does Dr. Christopher Desimone practice?

Dr. Desimone practices at 7300 Medical Center Dr, West Hills, CA 91307. Dr. Desimone's primary practice is UCLA West Valley Medical Center in West Hills, California, part of University of California Health. Dmand AI also links Dr. Desimone to 1 physician office, and a free account names each one.

What is Dr. Christopher Desimone's office phone number?

The practice phone on file for Dr. Desimone is (818) 676-4000. Dmand AI also checks direct phone and mobile numbers, available with a free account.

What is Dr. Christopher Desimone's email address?

Dmand AI checks professional and personal email addresses for Dr. Desimone through healthcare-specific waterfall enrichment. They are available with a free Dmand AI account.

What is Dr. Christopher Desimone's medical license number?

Dr. Desimone holds California license 20A16210.

Which hospitals is Dr. Christopher Desimone affiliated with?

Dr. Desimone practices at UCLA West Valley Medical Center in West Hills, California. Dr. Desimone is also affiliated with Ronald Reagan UCLA Medical Center.

Does Dr. Christopher Desimone accept Medicare?

Yes. CMS data shows Dr. Desimone billed Medicare for 386 services in 2024, and Dr. Desimone accepts Medicare assignment.

How many Medicare patients does Dr. Christopher Desimone see?

CMS counts 157 Medicare patients who saw Dr. Desimone in 2026, with an average age of 76.

Is Dr. Christopher Desimone board certified?

Yes. Dr. Desimone is board certified in surgery by the AOA Board of Surgery.

Show 7 more questionsShow fewer questions

What services does Dr. Christopher Desimone bill to Medicare?

In 2024, Dr. Desimone's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99223) and office visit, new patient (99204).

Where did Dr. Christopher Desimone go to medical school?

Dr. Desimone graduated from Touro College of Osteopathic Medicine - New York in 2014.

What drugs does Dr. Christopher Desimone prescribe most?

In 2024 Medicare Part D data, Dr. Desimone's most prescribed drugs by claims were Oxycodone HCl and Cyclobenzaprine HCl.

Has Dr. Christopher Desimone received payments from drug or device companies?

CMS Open Payments shows $268,769 in general payments to Dr. Desimone from 9 companies from 2019 to 2025. The largest total came from Intuitive Surgical, Inc.

How long has Dr. Christopher Desimone been practicing?

Dr. Desimone graduated from medical school in 2014, 12 years ago.

What EHR does Dr. Christopher Desimone's practice use?

Dmand AI tracks the EHR system at UCLA West Valley Medical Center and at 2 more affiliated sites. The vendor and product are available with a free Dmand AI account.

What insurance does Dr. Christopher Desimone accept?

Dr. Desimone is in network with 14 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Aetna. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit. The full carrier list is available with a free Dmand AI account.

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