Dr. Venkataraman Raman Muthusamy, MD

  • Los Angeles, CA
  • Gastroenterologist
NPI1790865954PAC ID7012923386
Medicare services, 2024
739
Medicare patients, 2024
403
Part D claims, 2024
156
Publications
11
Clinical trials
5
Practice address
200 Medical Plz, Los Angeles, CA 90024
Practice phone
Call (310) 794-9206
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

Peter Morton UCLA Medical Building

Los Angeles, California

See all 6 affiliations

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Dr. Venkataraman Raman Muthusamy is a gastroenterologist in Los Angeles, California

Dr. Muthusamy practices at Peter Morton UCLA Medical Building in Los Angeles, California.

Dr. Muthusamy's NPI, 1790865954, was assigned on October 16, 2006. Dr. Muthusamy graduated from University Of Washington School Of Medicine in 1995. Dr. Muthusamy holds California license 000000A68750.

NPI and contact details
Medicare PAC ID
7012923386
NPI enumeration date
October 16, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(310) 794-9206
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
57
Medical school graduation
1995

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

Dr. Venkataraman Raman Muthusamy practices at Peter Morton UCLA Medical Building in Los Angeles, California

Dr. Muthusamy's primary practice is Peter Morton UCLA Medical Building, at 200 Medical Plz, Los Angeles, CA 90024 in Los Angeles County. The practice phone is (310) 794-9206.

  • Peter Morton UCLA Medical Building
    200 Medical Plz, Los Angeles, CA 90024 · Los Angeles CountyPhone(310) 794-9206

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

Dr. Venkataraman Raman Muthusamy is affiliated with 4 sites of care and 2 medical groups

Dr. Muthusamy's primary practice is Peter Morton UCLA Medical Building in Los Angeles, California. Dr. Muthusamy is also affiliated with Ronald Reagan UCLA Medical Center. The medical group on file is UCLA Medical Group. Dmand AI also links Dr. Muthusamy to 1 more hospital, 1 group practice or clinic and 1 medical group, each named with a free account.

See all 6 affiliations for Dr. Muthusamy

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

Dmand AI tracks the EHR system at Dr. Venkataraman Raman Muthusamy's practice

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

EHR by site
SiteEHR vendor and product
Peter Morton UCLA Medical BuildingAvailable with a free account
+3 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Venkataraman Raman Muthusamy is one of 1,977 gastroenterologists in California

Gastroenterology is Dr. Muthusamy's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Muthusamy is board certified in gastroenterology by the American Board of Internal Medicine. Dmand AI has Dr. Muthusamy's licenses on file in 4 states: California, Florida, Nevada and North Carolina.

Specialties and state licenses

  • Gastroenterology, CaliforniaPrimaryLicense 000000A68750 · 1999 to 2026 · taxonomy 207RG0100X
  • Florida license2023 to 2027
  • Nevada license2008 to 2019
  • North Carolina license1997 to 1999

Clinical focus

Dmand AI lists acid reflux, colonoscopy, intestinal or bowel obstruction, pancreas or bile duct endoscopy (ERCP) and upper GI endoscopy among the conditions Dr. Muthusamy treats.

Gastroenterologists near Dr. Muthusamy

Counts of gastroenterologists 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. Venkataraman Raman Muthusamy billed Medicare for 739 services in 2024

CMS data shows 739 Medicare services from Dr. Muthusamy across 17 procedure codes in 2024, for 403 Medicare patients. Medicare paid $84,399 for them.

Medicare services, 2024739
Medicare patients403
Paid by Medicare$84,399
Procedure codes17

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

  • 2023
  • 2024
Surgery
2023: 4222024: 46410%
Office and hospital visits
2023: 2342024: 2465%
Imaging
2023: 292024: 29No change

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

  • In an office213%
  • In a facility71897%

Dr. Muthusamy compared with the California median for gastroenterologists, 2024

  • Dr. Muthusamy
  • California median
Medicare services
739vs 58626% above
Medicare patients
403vs 30233% above
Part D claims
105vs 38072% below

Medians across 1,875 gastroenterologists in California with Dmand AI profiles that report each measure.

Dr. Muthusamy'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. Muthusamy

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

Dr. Venkataraman Raman Muthusamy treated 403 Medicare patients in 2024, average age 73

CMS counts 403 Medicare patients who saw Dr. Muthusamy in 2024. The largest group is 65 to 74, with 177 patients. 75% of them have high cholesterol, and 74% have high blood pressure. 25% are also on Medicaid. Their average risk score is 1.97, 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. Muthusamy's median patient age at 64, with 48% women.

Medicare patients, 2024403
Average age73
Average risk score1.97
Also on Medicaid25%

Dr. Muthusamy's Medicare patients by age, 2024

Dr. Muthusamy's Medicare patients by sex, 2024

  • Women17443%
  • Men22957%

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

  1. High cholesterol75%
  2. High blood pressure74%
  3. Arthritis53%
  4. Ischemic heart disease40%
  5. Diabetes39%
  6. Chronic kidney disease33%
  7. Cancer30%
  8. Anxiety29%

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

Dr. Muthusamy'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

  • Women48%
  • Men50%

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

Dr. Venkataraman Raman Muthusamy wrote 156 Medicare Part D claims in 2024

In 2024, Dr. Muthusamy wrote 156 Medicare Part D claims for 77 patients. 95% of them were for generic drugs. CMS names the drug for 105 of them, across 4 drugs with 11 or more claims each, at $4,498 in total drug cost. In 2023, CMS named 38 claims across 2 drugs.

Part D claims, 2024156
Drugs named by CMS4
Total drug cost$4,498
Part D patients77

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

  • Generic148 claims95%
  • Brand-name and other8 claims5%

Dr. Muthusamy'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.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 382024: 105176%

Drugs named by CMS: 4 in 2024, 2 in 2023.

See all prescribing by Dr. Muthusamy

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. Venkataraman Raman Muthusamy scored 88 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 88 out of 100 for Dr. Muthusamy for performance year 2024, reported as part of a group. Dr. Muthusamy accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Muthusamy as offering telehealth. CMS counts 518 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Muthusamy, more than 99% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Muthusamy's MIPS scores, performance year 2024

  • 88of 100Final score
  • 79.4of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 74of 100Cost

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

Where Dr. Muthusamy ranks in Medicare procedure volume

Upper gastrointestinal (GI) endoscopy for acid reflux
99th percentile518 procedures
Colonoscopy
73rd percentile77 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. Venkataraman Raman Muthusamy has 11 publications on record

Dmand AI links 11 papers to Dr. Muthusamy, published from 2006 to 2020. 2017 was the busiest year, with 4. Dr. Muthusamy's most frequent co-authors are Steven A. Edmundowicz, MD, Srinadh Komanduri, MD and Jason B. Klapman, MD.

Papers11
Years published2006 to 2020

Dr. Muthusamy's papers by year, 2006 to 2020

Dr. Muthusamy's most frequent co-authors

Recent publications by Dr. Muthusamy

See all 11 publications and co-authors

See who Dr. Muthusamy researches with

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

How network discovery works

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

Dr. Venkataraman Raman Muthusamy has worked on 5 clinical trials

Dmand AI links Dr. Muthusamy to 5 clinical trials. 3 are still active or recruiting. Conditions studied include Barrett Esophagus, Precancerous Conditions and Adenocarcinoma Of Esophagus. Northwestern University sponsors the most, 2.

Conditions in Dr. Muthusamy's trials

  • Barrett Esophagus
  • Precancerous Conditions
  • Adenocarcinoma Of Esophagus

Investigators on the most trials with Dr. Muthusamy

Recent clinical trials with Dr. Muthusamy

Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)

Dr. Venkataraman Raman Muthusamy received $426,090 in industry payments from 2016 to 2025

CMS Open Payments shows 607 general payments to Dr. Muthusamy from 26 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 53% of the total. Boston Scientific Corporation paid the most, $319,412. It also lists 2 research payments totaling $3,000 from 2020 to 2025.

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

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

$426.1Kin total
  • Speaker and faculty fees$225,97953%
  • Consulting fees$133,83031%
  • Travel and lodging$34,0998%
  • Food and beverage$26,9296%
  • Other$5,2511%

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

Share is of all general payments to this clinician.

See all payments to Dr. Muthusamy

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

Dr. Venkataraman Raman Muthusamy has 1 award and honors on record

Dmand AI lists 1 award for Dr. Muthusamy.

Awards and honors for Dr. Muthusamy

  1. Undated
    • ACG Fellow

Source: Dmand AI Professional Profile Data

Dr. Venkataraman Raman Muthusamy graduated from University Of Washington School Of Medicine

Dr. Muthusamy graduated from University Of Washington School Of Medicine in 1995. Dr. Muthusamy is a member of ACG.

  1. Medical schoolUniversity Of Washington School Of Medicine
  2. Board certified in gastroenterologyAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Venkataraman Raman Muthusamy accepts plans from 7 insurance carriers

Dr. Muthusamy is in network with 7 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • Blue Cross Blue Shield of Massachusetts
  • Regence Health Plans
  • CMS Medicare
  • LA Care
  • Molina

Plan types Dr. Muthusamy accepts, by number of carriers

  1. Medicare6
  2. PPO4
  3. HMO3
  4. POS2
  5. EPO1

Source: Dmand AI Insurance Network Data

Sources for Dr. Venkataraman Raman Muthusamy'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 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)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
Clinical trials and co-investigatorsDmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (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. Venkataraman Raman Muthusamy

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. Venkataraman Raman Muthusamy's NPI number?

Dr. Venkataraman Raman Muthusamy's NPI number is 1790865954. It was assigned on October 16, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Venkataraman Raman Muthusamy?

Dr. Venkataraman Raman Muthusamy is a gastroenterologist in Los Angeles, California. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).

Where does Dr. Venkataraman Raman Muthusamy practice?

Dr. Muthusamy practices at 200 Medical Plz, Los Angeles, CA 90024. Dr. Muthusamy's primary practice is Peter Morton UCLA Medical Building in Los Angeles, California. Dmand AI also links Dr. Muthusamy to 1 hospital, 1 group practice or clinic and 1 medical group.

What is Dr. Venkataraman Raman Muthusamy's office phone number?

The practice phone on file for Dr. Muthusamy is (310) 794-9206.

What is Dr. Venkataraman Raman Muthusamy's medical license number?

Dr. Muthusamy holds California license 000000A68750, one of the licenses on file in 4 states.

Which states has Dr. Venkataraman Raman Muthusamy been licensed in?

Dmand AI has state licenses on file for Dr. Muthusamy in California (1999 to 2026), Florida (2023 to 2027), Nevada (2008 to 2019) and North Carolina (1997 to 1999).

Which hospitals is Dr. Venkataraman Raman Muthusamy affiliated with?

Dr. Muthusamy is affiliated with Ronald Reagan UCLA Medical Center. Dmand AI links Dr. Muthusamy to 1 more hospital.

What medical group is Dr. Venkataraman Raman Muthusamy part of?

Dr. Muthusamy is linked to UCLA Medical Group. Dmand AI links Dr. Muthusamy to 1 more medical group.

Does Dr. Venkataraman Raman Muthusamy accept Medicare?

Yes. CMS data shows Dr. Muthusamy billed Medicare for 739 services in 2024, and Dr. Muthusamy accepts Medicare assignment.

Does Dr. Venkataraman Raman Muthusamy offer telehealth?

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

Show 11 more questionsShow fewer questions

What is Dr. Venkataraman Raman Muthusamy's MIPS score?

Dr. Muthusamy's MIPS final score for performance year 2024 is 88 out of 100, reported as part of a group.

How many Medicare patients does Dr. Venkataraman Raman Muthusamy see?

CMS counts 403 Medicare patients who saw Dr. Muthusamy in 2024, with an average age of 73.

Is Dr. Venkataraman Raman Muthusamy board certified?

Yes. Dr. Muthusamy is board certified in gastroenterology by the American Board of Internal Medicine.

What services does Dr. Venkataraman Raman Muthusamy bill to Medicare?

In 2024, Dr. Muthusamy's most billed Medicare services were surgery: digestive system (43239), hospital inpatient care (99233) and office visit, new patient (99204).

Where did Dr. Venkataraman Raman Muthusamy go to medical school?

Dr. Muthusamy graduated from University Of Washington School Of Medicine in 1995.

What drugs does Dr. Venkataraman Raman Muthusamy prescribe most?

In 2024 Medicare Part D data, Dr. Muthusamy's most prescribed drugs by claims were Omeprazole, Pantoprazole Sodium and Gavilyte-G.

Has Dr. Venkataraman Raman Muthusamy received payments from drug or device companies?

CMS Open Payments shows $426,090 in general payments to Dr. Muthusamy from 26 companies from 2016 to 2025. The largest total came from Boston Scientific Corporation.

How long has Dr. Venkataraman Raman Muthusamy been practicing?

Dr. Muthusamy graduated from medical school in 1995, 31 years ago.

Does Dr. Venkataraman Raman Muthusamy do research?

Dmand AI links 11 publications to Dr. Muthusamy, published from 2006 to 2020. Dr. Muthusamy has worked on 5 clinical trials.

Who does Dr. Venkataraman Raman Muthusamy publish with?

Dr. Muthusamy's most frequent co-authors are Steven A. Edmundowicz, MD (4 shared papers), Srinadh Komanduri, MD (4 shared papers) and Jason B. Klapman, MD (3 shared papers).

What insurance does Dr. Venkataraman Raman Muthusamy accept?

Dr. Muthusamy is in network with 7 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.

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