Dr. Christopher Julian Marrocco, MD

  • Gardena, CA
  • Vascular surgeon
NPI1124208459PAC ID1052508389
Medicare services, 2024
1,835
Medicare patients, 2024
240
Part D claims, 2021
67
Publications
7
MIPS score, 2024
96
Practice address
1251 W Redondo Beach Blvd, Gardena, CA 90247
Practice phone
Call (562) 698-0271
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Vascular & Thoracic Associates of Los Angeles

Gardena, California

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Dr. Christopher Julian Marrocco is a vascular surgeon in Gardena, California

Dr. Marrocco practices at Vascular & Thoracic Associates of Los Angeles in Gardena, California.

Dr. Marrocco's NPI, 1124208459, was assigned on November 3, 2007. Dr. Marrocco graduated from University of Dublin Trinity College in 2003. Dr. Marrocco holds Texas license N7138.

NPI and contact details
Medicare PAC ID
1052508389
NPI enumeration date
November 3, 2007
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(562) 698-0271
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Male
Estimated age
49
Medical school graduation
2003

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

Dr. Christopher Julian Marrocco practices at Vascular & Thoracic Associates of Los Angeles in Gardena, California

Dr. Marrocco's primary practice is Vascular & Thoracic Associates of Los Angeles, at 1251 W Redondo Beach Blvd, Gardena, CA 90247 in Los Angeles County. The practice phone is (562) 698-0271.

  • Vascular & Thoracic Associates of Los Angeles
    1251 W Redondo Beach Blvd, Gardena, CA 90247 · Los Angeles CountyPhone(562) 698-0271

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Christopher Julian Marrocco is affiliated with 4 sites of care and 1 medical group

Dr. Marrocco's primary practice is Vascular & Thoracic Associates of Los Angeles in Gardena, California. Dr. Marrocco is also affiliated with Memorial Hospital of Gardena. The medical group on file is Vascular & Thoracic Associates of Los Angeles. Dmand AI also links Dr. Marrocco to 1 more hospital and 1 group practice or clinic, each named with a free account.

See all 5 affiliations for Dr. Marrocco

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

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

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

EHR by site
SiteEHR vendor and product
Vascular & Thoracic Associates of Los AngelesAvailable with a free account
+3 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Christopher Julian Marrocco is one of 532 vascular surgeons in California

Vascular surgery is Dr. Marrocco's primary specialty in the NPI Registry, under taxonomy code 2086S0129X. Dr. Marrocco is board certified in surgery by the American Board of Surgery. Dmand AI has Dr. Marrocco's licenses on file in 2 states: Texas and California.

Specialties and state licenses

  • Vascular surgery, TexasPrimaryLicense N7138 · 2010 to 2026 · taxonomy 2086S0129X
  • Surgery, CaliforniaLicense A94282 · 2006 to 2025 · taxonomy 208600000X

Clinical focus

Dmand AI lists blood vessel access for dialysis, chronic skin ulcer, deep vein thrombosis (DVT), leg revascularization, peripheral vascular disease, varicose veins and varicose vein treatment among the conditions Dr. Marrocco treats.

Vascular surgeons near Dr. Marrocco

Counts of vascular 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 Julian Marrocco billed Medicare for 1,835 services in 2024

CMS data shows 1,835 Medicare services from Dr. Marrocco across 26 procedure codes in 2024, for 240 Medicare patients. Medicare paid $762,157 for them.

Medicare services, 20241,835
Medicare patients240
Paid by Medicare$762,157
Procedure codes26

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

  • 2023
  • 2024
Tests and treatments
2023: 1,2812024: 1,09714%
Surgery
2023: 3442024: 30113%
Office and hospital visits
2023: 1592024: 29284%
Imaging
2023: 1492024: 1453%

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

  • In an office1,67591%
  • In a facility1609%

Dr. Marrocco compared with the California median for vascular surgeons, 2024

  • Dr. Marrocco
  • California median
Medicare services
1,835vs 6093.0 times
Medicare patients
240vs 27212% below
Part D claims
67vs 5522% above

Medians across 499 vascular surgeons in California with Dmand AI profiles that report each measure.

Dr. Marrocco'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. Marrocco

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

Dr. Christopher Julian Marrocco treated 240 Medicare patients in 2024, average age 70

CMS counts 240 Medicare patients who saw Dr. Marrocco in 2024. The largest group is 65 to 74, with 106 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 94% are also on Medicaid. Their average risk score is 3.97, 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. Marrocco's median patient age at 63, with 66% women.

Medicare patients, 2024240
Average age70
Average risk score3.97
Also on Medicaid94%

Dr. Marrocco's Medicare patients by age, 2024

Dr. Marrocco's Medicare patients by sex, 2024

  • Women13355%
  • Men10745%

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

  1. High blood pressure75%
  2. High cholesterol75%
  3. Diabetes70%
  4. Arthritis53%
  5. Chronic kidney disease53%
  6. Heart failure48%
  7. Ischemic heart disease47%
  8. Mood disorders29%

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

Dr. Marrocco's patients across all payers

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

Patient panel by age, all payers

Median age 63

Patient panel by sex, all payers

  • Women66%
  • Men33%

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

Dr. Christopher Julian Marrocco wrote 67 Medicare Part D claims in 2021

In 2021, Dr. Marrocco wrote 67 Medicare Part D claims. They cover 2 drugs, with $27,440 in total drug cost. In 2020, CMS named 162 claims across 4 drugs.

Part D claims, 202167
Drugs named by CMS2
Total drug cost$27,440

Dr. Marrocco's most prescribed drugs by claims, 2021

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, 2020 to 2021

  • 2020
  • 2021
Claims for drugs CMS names
2020: 1622021: 6759%

Drugs named by CMS: 2 in 2021, 4 in 2020.

See all prescribing by Dr. Marrocco

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

Dr. Christopher Julian Marrocco scored 96 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 96 out of 100 for Dr. Marrocco for performance year 2024, reported as part of a group. Dr. Marrocco accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Marrocco as offering telehealth. CMS counts 76 procedures of leg revascularization (restoring blood flow) by Dr. Marrocco, more than 97% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Marrocco's MIPS scores, performance year 2024

  • 96of 100Final score
  • 100of 100Quality
  • 40of 100Improvement Activities
  • 53of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Where Dr. Marrocco ranks in Medicare procedure volume

Leg revascularization (restoring blood flow)
97th percentile76 procedures
Varicose vein removal
72nd percentile45 procedures
Removal of tissue
66th percentile15 procedures

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

Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)

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Dr. Christopher Julian Marrocco has 7 publications on record

Dmand AI links 7 papers to Dr. Marrocco in 2011. The most frequent topics are Blood Vessel Prosthesis Implantation, Endovascular Procedures and Stents. Dr. Marrocco has published most often in J Endovasc Ther. Dr. Marrocco's most frequent co-authors are Ruth L. Bush, MD, Marvin Douglas Atkins, MD and Clifford James Buckley, MD.

Papers7

Topics Dr. Marrocco writes about most

  • Blood Vessel Prosthesis Implantation
  • Endovascular Procedures
  • Stents
  • Blood Vessel Prosthesis
  • Catheter Ablation
  • Postoperative Complications
  • Prosthesis Design
  • Ultrasonography, Interventional

Dr. Marrocco's most frequent co-authors

Recent publications by Dr. Marrocco

See all 7 publications and co-authors

See who Dr. Marrocco researches with

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

How network discovery works

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

Dr. Christopher Julian Marrocco received $89,522 in industry payments from 2016 to 2025

CMS Open Payments shows 324 general payments to Dr. Marrocco from 39 drug and device companies from 2016 to 2025. Device or supply loans make up the largest share, 67% of the total. AngioDynamics, Inc. paid the most, $74,839.

General payments to Dr. Marrocco by program year, 2016 to 2025

General payments to Dr. Marrocco by kind, 2016 to 2025

$89.5Kin total
  • Device or supply loans$60,00067%
  • Education$13,91716%
  • Food and beverage$11,59713%
  • Travel and lodging$2,4753%
  • Other$1,5342%

Companies that paid Dr. Marrocco the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Marrocco

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

Dr. Christopher Julian Marrocco graduated from University of Dublin Trinity College

Dr. Marrocco graduated from University of Dublin Trinity College in 2003. Dr. Marrocco is a member of SVS.

  1. Medical schoolUniversity of Dublin Trinity College
  2. Board certified in surgeryAmerican Board of Surgery
  3. Board certified in vascular surgeryAmerican Board of Surgery

Source: Dmand AI Professional Profile Data

Dr. Christopher Julian Marrocco accepts plans from 10 insurance carriers

Dr. Marrocco is in network with 10 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.

Plan types Dr. Marrocco accepts, by number of carriers

  1. Medicare9
  2. HMO6
  3. PPO6
  4. POS3
  5. EPO2
  6. Medicaid1

Source: Dmand AI Insurance Network Data

Sources for Dr. Christopher Julian Marrocco'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 phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (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 Dr. Christopher Julian Marrocco

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 Julian Marrocco's NPI number?

Dr. Christopher Julian Marrocco's NPI number is 1124208459. It was assigned on November 3, 2007, and it is active in the NPI Registry.

What kind of doctor is Dr. Christopher Julian Marrocco?

Dr. Christopher Julian Marrocco is a vascular surgeon in Gardena, California. The primary specialty in the NPI Registry is Vascular Surgery Physician (taxonomy code 2086S0129X).

Where does Dr. Christopher Julian Marrocco practice?

Dr. Marrocco practices at 1251 W Redondo Beach Blvd, Gardena, CA 90247. Dr. Marrocco's primary practice is Vascular & Thoracic Associates of Los Angeles in Gardena, California. Dmand AI also links Dr. Marrocco to 1 hospital and 1 group practice or clinic.

What is Dr. Christopher Julian Marrocco's office phone number?

The practice phone on file for Dr. Marrocco is (562) 698-0271.

What is Dr. Christopher Julian Marrocco's medical license number?

Dr. Marrocco holds Texas license N7138, one of the licenses on file in 2 states.

Which states has Dr. Christopher Julian Marrocco been licensed in?

Dmand AI has state licenses on file for Dr. Marrocco in Texas (2010 to 2026) and California (2006 to 2025).

Which hospitals is Dr. Christopher Julian Marrocco affiliated with?

Dr. Marrocco is affiliated with Memorial Hospital of Gardena. Dmand AI links Dr. Marrocco to 1 more hospital.

What medical group is Dr. Christopher Julian Marrocco part of?

Dr. Marrocco is linked to Vascular & Thoracic Associates of Los Angeles.

Does Dr. Christopher Julian Marrocco accept Medicare?

Yes. CMS data shows Dr. Marrocco billed Medicare for 1,835 services in 2024, and Dr. Marrocco accepts Medicare assignment.

Does Dr. Christopher Julian Marrocco offer telehealth?

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

Show 11 more questionsShow fewer questions

What is Dr. Christopher Julian Marrocco's MIPS score?

Dr. Marrocco's MIPS final score for performance year 2024 is 96 out of 100, reported as part of a group.

How many Medicare patients does Dr. Christopher Julian Marrocco see?

CMS counts 240 Medicare patients who saw Dr. Marrocco in 2024, with an average age of 70.

Is Dr. Christopher Julian Marrocco board certified?

Yes. Dr. Marrocco is board certified in surgery by the American Board of Surgery.

What services does Dr. Christopher Julian Marrocco bill to Medicare?

In 2024, Dr. Marrocco's most billed Medicare services were blood vessel study (93922), blood vessel study (93925) and blood vessel study (93970).

Where did Dr. Christopher Julian Marrocco go to medical school?

Dr. Marrocco graduated from University of Dublin Trinity College in 2003.

What drugs does Dr. Christopher Julian Marrocco prescribe most?

In 2021 Medicare Part D data, Dr. Marrocco's most prescribed drugs by claims were Eliquis and Clopidogrel.

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

CMS Open Payments shows $89,522 in general payments to Dr. Marrocco from 39 companies from 2016 to 2025. The largest total came from AngioDynamics, Inc.

How long has Dr. Christopher Julian Marrocco been practicing?

Dr. Marrocco graduated from medical school in 2003, 23 years ago.

Does Dr. Christopher Julian Marrocco do research?

Dmand AI links 7 publications to Dr. Marrocco.

Who does Dr. Christopher Julian Marrocco publish with?

Dr. Marrocco's most frequent co-authors are Ruth L. Bush, MD (5 shared papers), Marvin Douglas Atkins, MD (3 shared papers) and Clifford James Buckley, MD (2 shared papers).

What insurance does Dr. Christopher Julian Marrocco accept?

Dr. Marrocco is in network with 10 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.

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