Dr. Carol Sumi Murakami, MD

  • Harbor City, CA
  • Gastroenterologist
NPI1821085390PAC ID2961580972
Medicare services, 2021
61
Medicare patients, 2024
11
Part D claims, 2024
429
Publications
12
Hospital affiliations
1
Practice address
25825 South Vermont Avenue, Harbor City, CA 90710
Practice phone
Call (310) 325-5111
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

Kaiser Permanente South Bay Medical Center

Hospital · Harbor City, California

See all 6 affiliations

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Dr. Carol Sumi Murakami is a gastroenterologist in Harbor City, California

Dr. Murakami practices at Kaiser Permanente South Bay Medical Center in Harbor City, California, part of Kaiser Permanente.

Dr. Murakami's NPI, 1821085390, was assigned on September 30, 2005. Dr. Murakami graduated from Loyola University Chicago Stritch School of Medicine in 1985. Dr. Murakami's Oregon license number on file is CP204540.

NPI and contact details
Medicare PAC ID
2961580972
NPI enumeration date
September 30, 2005
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(310) 325-5111
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Female
Estimated age
67
Medical school graduation
1985

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

Dr. Carol Sumi Murakami practices at Kaiser Permanente South Bay Medical Center in Harbor City, California

Dr. Murakami's primary practice is Kaiser Permanente South Bay Medical Center, at 25825 South Vermont Avenue, Harbor City, CA 90710 in Los Angeles County. The practice phone is (310) 325-5111.

Source: Dmand AI Affiliation Data

Dr. Carol Sumi Murakami is affiliated with 2 sites of care and 4 medical groups

Dr. Murakami's primary practice is Kaiser Permanente South Bay Medical Center in Harbor City, California, part of Kaiser Permanente. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Murakami to 3 more medical groups and 1 group practice or clinic, each named with a free account.

See all 6 affiliations for Dr. Murakami

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

Dmand AI tracks the EHR system at Dr. Carol Sumi Murakami's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Murakami practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Kaiser Permanente South Bay Medical CenterAvailable with a free account
+1 more site and 3 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Carol Sumi Murakami is one of 1,977 gastroenterologists in California

Gastroenterology is Dr. Murakami's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Murakami is board certified in gastroenterology by the American Board of Internal Medicine. Dmand AI has Dr. Murakami's licenses on file in 5 states: Oregon, California, Washington, Illinois and Texas.

Specialties and state licenses

  • Gastroenterology, OregonPrimaryLicense CP204540 · 2021 to 2023 · taxonomy 207RG0100X
  • California license1986 to 2026
  • Washington licenseLicense MD00025512 · 1988 to 2026
  • Illinois license2020 to 2023
  • Texas licenseLicense J3166 · 1993 to 2022

Gastroenterologists near Dr. Murakami

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. Carol Sumi Murakami billed Medicare for 61 services in 2021

CMS data shows 61 Medicare services from Dr. Murakami across 3 procedure codes in 2021, for 11 Medicare patients. Medicare paid $6,576 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 202161
Medicare patients11
Paid by Medicare$6,576
Procedure codes3

Dr. Murakami's Medicare services by type, 2020 to 2021

  • 2020
  • 2021
Surgery
2020: 2632021: 4782%
Office and hospital visits
2020: 3352021: 1496%
Other services
2020: 362021: 0100%

Dr. Murakami compared with the California median for gastroenterologists, 2021

  • Dr. Murakami
  • California median
Medicare services
61vs 58690% below
Medicare patients
11vs 30296% below
Part D claims
306vs 38019% below

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

Dr. Murakami's most billed Medicare procedure codes, 2021

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. Murakami

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

Dr. Carol Sumi Murakami treated 11 Medicare patients in 2024, average age 69

CMS counts 11 Medicare patients who saw Dr. Murakami in 2024. The largest group is 85 and over, with 0 patients. 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. Murakami's median patient age at 58, with 57% women.

Medicare patients, 202411
Average age69
Average risk score1.97

Dr. Murakami's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Murakami's patients across all payers

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

Patient panel by age, all payers

Median age 58

Patient panel by sex, all payers

  • Women57%
  • Men42%

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

Dr. Carol Sumi Murakami wrote 429 Medicare Part D claims in 2024

In 2024, Dr. Murakami wrote 429 Medicare Part D claims for 160 patients. 91% of them were for generic drugs. CMS names the drug for 306 of them, across 7 drugs with 11 or more claims each, at $15,674 in total drug cost. In 2023, CMS named 210 claims across 8 drugs.

Part D claims, 2024429
Drugs named by CMS7
Total drug cost$15,674
Part D patients160

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

  • Generic392 claims91%
  • Brand-name37 claims9%

Dr. Murakami'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: 2102024: 30646%

Drugs named by CMS: 7 in 2024, 8 in 2023.

See all prescribing by Dr. Murakami

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

How Dr. Carol Sumi Murakami takes part in Medicare

Dr. Murakami accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

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. Carol Sumi Murakami has 12 publications on record

Dmand AI links 12 papers to Dr. Murakami in 2002. The most frequent topics are Graft vs Host Disease, Hematopoietic Stem Cell Transplantation and Bilirubin. Dr. Murakami has published most often in Am J Gastroenterol. Dr. Murakami's most frequent co-authors are William Martens Lee, MD, George Allen Moninger, MD and Joseph Harry Antin, MD.

Papers12

Topics Dr. Murakami writes about most

  • Graft vs Host Disease
  • Hematopoietic Stem Cell Transplantation
  • Bilirubin
  • Bone Marrow Transplantation
  • Cholestasis
  • Corneal Ulcer
  • Eye Infections, Viral
  • Gastrointestinal Hemorrhage

Dr. Murakami's most frequent co-authors

Recent publications by Dr. Murakami

See all 12 publications and co-authors

See who Dr. Murakami researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Murakami 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. Carol Sumi Murakami received $5,241 in industry payments from 2016 to 2024

CMS Open Payments shows 34 general payments to Dr. Murakami from 11 drug and device companies from 2016 to 2024. Education speaker fees make up the largest share, 57% of the total. Valeant Pharmaceuticals International paid the most, $3,904. It also lists 2 research payments totaling $24,506 from 2017 to 2018.

General payments to Dr. Murakami by program year, 2016 to 2024

General payments to Dr. Murakami by kind, 2016 to 2024

$5.2Kin total
  • Education speaker fees$3,00057%
  • Food and beverage$1,47828%
  • Travel and lodging$76315%

Companies that paid Dr. Murakami the most, 2016 to 2024

Share is of all general payments to this clinician.

See all payments to Dr. Murakami

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

Dr. Carol Sumi Murakami has 1 award and honors on record

Dmand AI lists 1 award for Dr. Murakami, most recently CMS Stage 1 EHR in 2013.

Awards and honors for Dr. Murakami

  1. 2013
    • CMS Stage 1 EHR

Source: Dmand AI Professional Profile Data

Dr. Carol Sumi Murakami graduated from Loyola University Chicago Stritch School of Medicine

Dr. Murakami graduated from Loyola University Chicago Stritch School of Medicine in 1985.

  1. Medical schoolLoyola University Chicago Stritch School of Medicine
  2. Board certified in gastroenterologyAmerican Board of Internal Medicine
  3. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Carol Sumi Murakami accepts plans from 3 insurance carriers

Dr. Murakami is in network with 3 carriers, including Molina, AK State Medicaid and CMS Medicare. Medicare plans come from the most carriers, 2. Check the plan with the practice before a visit.

  • Molina
  • AK State Medicaid
  • CMS Medicare

Plan types Dr. Murakami accepts, by number of carriers

  1. Medicare2
  2. HMO1
  3. Medicaid1

Source: Dmand AI Insurance Network Data

Sources for Dr. Carol Sumi Murakami'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)
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)
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. Carol Sumi Murakami

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. Carol Sumi Murakami's NPI number?

Dr. Carol Sumi Murakami's NPI number is 1821085390. It was assigned on September 30, 2005, and it is active in the NPI Registry.

What kind of doctor is Dr. Carol Sumi Murakami?

Dr. Carol Sumi Murakami is a gastroenterologist in Harbor City, California. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).

Where does Dr. Carol Sumi Murakami practice?

Dr. Murakami practices at 25825 South Vermont Avenue, Harbor City, CA 90710. Dr. Murakami's primary practice is Kaiser Permanente South Bay Medical Center in Harbor City, California, part of Kaiser Permanente. Dmand AI also links Dr. Murakami to 3 medical groups and 1 group practice or clinic.

What is Dr. Carol Sumi Murakami's office phone number?

The practice phone on file for Dr. Murakami is (310) 325-5111.

What is Dr. Carol Sumi Murakami's medical license number?

Dr. Murakami's Oregon license number on file is CP204540, one of the licenses on file in 5 states.

Which states has Dr. Carol Sumi Murakami been licensed in?

Dmand AI has state licenses on file for Dr. Murakami in Oregon (2021 to 2023), California (1986 to 2026), Washington (1988 to 2026), Illinois (2020 to 2023) and Texas (1993 to 2022).

Which hospitals is Dr. Carol Sumi Murakami affiliated with?

Dr. Murakami practices at Kaiser Permanente South Bay Medical Center in Harbor City, California.

What medical group is Dr. Carol Sumi Murakami part of?

Dr. Murakami is linked to Southern California Permanente Medical Group. Dmand AI links Dr. Murakami to 3 more medical groups.

Does Dr. Carol Sumi Murakami accept Medicare?

Yes. CMS data shows Dr. Murakami billed Medicare for 61 services in 2021, and Dr. Murakami accepts Medicare assignment.

How many Medicare patients does Dr. Carol Sumi Murakami see?

CMS counts 11 Medicare patients who saw Dr. Murakami in 2024, with an average age of 69.

Show 9 more questionsShow fewer questions

Is Dr. Carol Sumi Murakami board certified?

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

What services does Dr. Carol Sumi Murakami bill to Medicare?

In 2021, Dr. Murakami's most billed Medicare services were surgery: digestive system (45380), surgery: digestive system (43239) and office visit, new patient (99203).

Where did Dr. Carol Sumi Murakami go to medical school?

Dr. Murakami graduated from Loyola University Chicago Stritch School of Medicine in 1985.

What drugs does Dr. Carol Sumi Murakami prescribe most?

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

Has Dr. Carol Sumi Murakami received payments from drug or device companies?

CMS Open Payments shows $5,241 in general payments to Dr. Murakami from 11 companies from 2016 to 2024. The largest total came from Valeant Pharmaceuticals International.

How long has Dr. Carol Sumi Murakami been practicing?

Dr. Murakami graduated from medical school in 1985, 41 years ago.

Does Dr. Carol Sumi Murakami do research?

Dmand AI links 12 publications to Dr. Murakami.

Who does Dr. Carol Sumi Murakami publish with?

Dr. Murakami's most frequent co-authors are William Martens Lee, MD (2 shared papers), George Allen Moninger, MD (2 shared papers) and Joseph Harry Antin, MD (1 shared paper).

What insurance does Dr. Carol Sumi Murakami accept?

Dr. Murakami is in network with 3 carriers, including Molina, AK State Medicaid and CMS Medicare. Medicare plans come from the most carriers, 2. Check the plan with the practice before a visit.

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