Carol Sumi Murakami, MD
Gastroenterology Physician · Redlands, CA
Carol Sumi Murakami, MD is a gastroenterology physician with a practice address in Redlands, California, and NPI 1821085390, issued on Sep 30, 2005. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Carol Sumi Murakami
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- CP204540 OR
J3166 TX
MD00025512 WA
Self-reported in NPPES; status is on the state search - Practice location
- 104 E Olive Ave Ste 100, Redlands, CA 92373
- Phone
- (424) 338-0225
- Enumerated
- Sep 30, 2005
- Record last updated
- Dec 1, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (209) 759-2672
- Medicare enrollment
- Enrolled (PECOS I20080416000295); accepts Medicare assignment
- Medical or professional school
- Loyola University Of Chicago, Stritch School Of Medicine, 1985
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 2,140 in California → Look up another NPI →
Also registered at 104 E Olive Ave Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alireza Nikpour, PMHNPPsychiatric/Mental Health Nurse Practitioner1730989898
Verify Carol Sumi Murakami in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of CaliforniaCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
47% fewer Medicare Part D claims than the average gastroenterology physician in 2024
429 Medicare Part D claims for 160 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.
Most prescribed
- Gavilyte-C88 claims
- Pantoprazole Sodium62 claims
- Omeprazole50 claims
- Mesalamine47 claims
- Lactulose27 claims
- Famotidine17 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $36.66
1 payment: food and beverage; the largest payer was Medtronic, Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Kaiser Foundation Health Plan OF WashingtonSeattle, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Carol Sumi Murakami among 2,140 gastroenterology physician records in California
Carol Sumi Murakami, MD is one of 2,140 gastroenterology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 93% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated1985 · median 2002 among the 1,538 with a school on file
- Record last updated2021 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in California
There are 2,140 gastroenterology physician records in California.
All 2,140 in California → Every provider in Redlands → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Bradley Collins, PA-CRedlands, CA 923731881791986
- George Saffouri, MDRedlands, CA 923731962766907
- Albert Chang, MDRedlands, CA 923741790984805
- Khushal Stanisai, MDRedlands, CA 923741720019821
- Gary Wernick, MDRedlands, CA 923741033189808
- Kumaravelu Balasubramaniam, MDRialto, CA 923771134184708
- Carlos Buitrago, MDRialto, CA 923771710481445
- Karen Chang, DORialto, CA 923771861855439
Common questions
What is Carol Sumi Murakami, MD's NPI number?
Carol Sumi Murakami, MD's National Provider Identifier (NPI) is 1821085390, issued on Sep 30, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Carol Sumi Murakami, MD located?
The NPPES record lists a practice address at 104 E Olive Ave Ste 100, Redlands, CA, 92373. Phone: (424) 338-0225. Providers update this record themselves, so call before visiting.
How can I verify Carol Sumi Murakami, MD's license?
Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Carol Sumi Murakami, MD prescribe under Medicare Part D?
In 2024, Carol Sumi Murakami, MD had 429 Medicare Part D claims for 160 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.