Dr. Sergio E. Rojter, MD
- Medicare services, 2024
- 508
- Medicare patients, 2024
- 302
- Part D claims, 2024
- 601
- Publications
- 2
- Clinical trials
- 1
- Practice address
- 1245 W Wilshire Blvd, Los Angeles, CA 90017
- Practice phone
- Call (213) 250-3344
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Sergio E Rojter MD a Professional Corporation
Los Angeles, California
Find Dr. Rojter's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Sergio E. Rojter is a hepatology physician in Los Angeles, California
Dr. Rojter practices at Sergio E Rojter MD a Professional Corporation in Los Angeles, California.
Dr. Rojter's NPI, 1891716494, was assigned on July 21, 2006. Dr. Rojter graduated from University of Buenos Aires in 1985. Dr. Rojter holds California license A63254.
- NPI
- 1891716494NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9537053145
- NPI enumeration date
- July 21, 2006
- NPI status
- Active
- Offers telehealth
- Yes
- Practice phone
- (213) 250-3344
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 66
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Sergio E. Rojter practices at Sergio E Rojter MD a Professional Corporation in Los Angeles, California
Dr. Rojter's primary practice is Sergio E Rojter MD a Professional Corporation, at 1245 W Wilshire Blvd, Los Angeles, CA 90017 in Los Angeles County. The practice phone is (213) 250-3344.
- Sergio E Rojter MD a Professional Corporation1245 W Wilshire Blvd, Los Angeles, CA 90017 · Los Angeles CountyPhone(213) 250-3344
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Sergio E. Rojter is affiliated with 3 sites of care and 1 medical group
Dr. Rojter's primary practice is Sergio E Rojter MD a Professional Corporation in Los Angeles, California. Dr. Rojter is also affiliated with Adventist Health White Memorial. The medical group on file is Sergio E Rojter MD A Professional Corporation. Dmand AI also links Dr. Rojter to 1 more hospital, named with a free account.
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. Sergio E. Rojter's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Rojter practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sergio E Rojter MD a Professional Corporation | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Sergio E. Rojter is one of 41 hepatology physicians in California
Hepatology is Dr. Rojter's primary specialty in the NPI Registry, under taxonomy code 207RI0008X. Dr. Rojter is licensed in California.
Specialties and state licenses
- Hepatology, CaliforniaPrimary
Clinical focus
Dmand AI lists cirrhosis of the liver, fatty liver and hepatitis c among the conditions Dr. Rojter treats.
Hepatology physicians near Dr. Rojter
Counts of hepatology physicians 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. Sergio E. Rojter billed Medicare for 508 services in 2024
CMS data shows 508 Medicare services from Dr. Rojter across 5 procedure codes in 2024, for 302 Medicare patients. Medicare paid $41,336 for them. Every service was in an office.
Dr. Rojter's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4672024: 4455%
- Tests and treatments
- 2023: 622024: 632%
Dr. Rojter compared with the California median for hepatology physicians, 2024
- Dr. Rojter
- California median
- Medicare services
- 508vs 31561% above
- Medicare patients
- 302vs 25817% above
- Part D claims
- 548vs 39539% above
Medians across 37 hepatology physicians in California with Dmand AI profiles that report each measure.
Dr. Rojter'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.
Need commercial claims for Dr. Rojter?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Rojter and other hepatology physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Sergio E. Rojter treated 302 Medicare patients in 2024, average age 68
CMS counts 302 Medicare patients who saw Dr. Rojter in 2024. The largest group is 65 to 74, with 158 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 93% are also on Medicaid. Their average risk score is 2.17, 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. Rojter's median patient age at 58, with 59% women.
Dr. Rojter's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Rojter's Medicare patients by sex, 2024
- Women18762%
- Men11538%
Chronic conditions among Dr. Rojter's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes62%
- Arthritis51%
- Chronic kidney disease29%
- Mood disorders27%
- Depression25%
- Ischemic heart disease22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Rojter'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
- Women59%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Sergio E. Rojter wrote 601 Medicare Part D claims in 2024
In 2024, Dr. Rojter wrote 601 Medicare Part D claims for 95 patients. 77% of them were for generic drugs. CMS names the drug for 548 of them, across 12 drugs with 11 or more claims each, at $614,417 in total drug cost. In 2023, CMS named 439 claims across 12 drugs.
Dr. Rojter's Part D claims by kind of drug, 2024
- Generic461 claims77%
- Brand-name140 claims23%
Dr. Rojter'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. Rojter's Part D claims, 2024
- Antibiotics12%73 of 601 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: 4392024: 54825%
Drugs named by CMS: 12 in 2024, 12 in 2023.
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. Sergio E. Rojter offers telehealth to Medicare patients
CMS lists Dr. Rojter as offering telehealth.
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Sergio E. Rojter has 2 publications on record
Dmand AI links 2 papers to Dr. Rojter, published from 2015 to 2019. Dr. Rojter's most frequent co-authors are Kyle P. Etzkorn, MD, Bradley Lawrence Freilich, MD and Norman Gitlin, MD.
Dr. Rojter's most frequent co-authors
- Kyle P. Etzkorn, MD1 shared paper
- Bradley Lawrence Freilich, MD1 shared paper
- Norman Gitlin, MD1 shared paper
Recent publications by Dr. Rojter
See who Dr. Rojter researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Rojter works with, so you can find a warm path to the right hepatology physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Sergio E. Rojter has worked on 1 clinical trial
Dmand AI links Dr. Rojter to 1 clinical trial. Conditions studied include Hepatitis D and Hepatitis, Viral, Human.
Conditions in Dr. Rojter's trials
- Hepatitis D
- Hepatitis, Viral, Human
Investigators on the most trials with Dr. Rojter
- Adrian M. Di Bisceglie, MD1 shared trial
- Viviana Figueroa Diaz, MD1 shared trial
- Robert M. Gordon, MD1 shared trial
Recent clinical trials with Dr. Rojter
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Sergio E. Rojter received $123,003 in industry payments from 2016 to 2025
CMS Open Payments shows 352 general payments to Dr. Rojter from 14 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 67% of the total. Gilead Sciences, Inc. paid the most, $85,549. It also lists 1 research payment totaling $78 in 2019.
General payments to Dr. Rojter by program year, 2016 to 2025
General payments to Dr. Rojter by kind, 2016 to 2025
- Speaker and faculty fees$82,51067%
- Consulting fees$28,73023%
- Food and beverage$7,8526%
- Travel and lodging$3,8013%
- Education$1100%
Companies that paid Dr. Rojter the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Sergio E. Rojter graduated from University of Buenos Aires
Dr. Rojter graduated from University of Buenos Aires in 1985. Dr. Rojter is a member of American Association for the Study of Liver Diseases and European Association for the Study of Liver Diseases.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Sergio E. Rojter accepts plans from 13 insurance carriers
Dr. Rojter is in network with 13 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- LA Care
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Molina
- Regence Health Plans
- +5 more carriersWith a free account
Plan types Dr. Rojter accepts, by number of carriers
- Medicare9
- PPO7
- HMO6
- POS4
- EPO2
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Sergio E. Rojter's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare 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 percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Sergio E. Rojter
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. Sergio E. Rojter's NPI number?
Dr. Sergio E. Rojter's NPI number is 1891716494. It was assigned on July 21, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Sergio E. Rojter?
Dr. Sergio E. Rojter is a hepatology physician in Los Angeles, California. The primary specialty in the NPI Registry is Hepatology Physician (taxonomy code 207RI0008X).
Where does Dr. Sergio E. Rojter practice?
Dr. Rojter practices at 1245 W Wilshire Blvd, Los Angeles, CA 90017. Dr. Rojter's primary practice is Sergio E Rojter MD a Professional Corporation in Los Angeles, California. Dmand AI also links Dr. Rojter to 1 hospital.
What is Dr. Sergio E. Rojter's office phone number?
The practice phone on file for Dr. Rojter is (213) 250-3344.
What is Dr. Sergio E. Rojter's medical license number?
Dr. Rojter holds California license A63254.
Which hospitals is Dr. Sergio E. Rojter affiliated with?
Dr. Rojter is affiliated with Adventist Health White Memorial. Dmand AI links Dr. Rojter to 1 more hospital.
What medical group is Dr. Sergio E. Rojter part of?
Dr. Rojter is linked to Sergio E Rojter MD A Professional Corporation.
Does Dr. Sergio E. Rojter accept Medicare?
Yes. CMS data shows Dr. Rojter billed Medicare for 508 services in 2024.
Does Dr. Sergio E. Rojter offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Rojter as offering telehealth services.
How many Medicare patients does Dr. Sergio E. Rojter see?
CMS counts 302 Medicare patients who saw Dr. Rojter in 2024, with an average age of 68.
Show 8 more questionsShow fewer questions
What services does Dr. Sergio E. Rojter bill to Medicare?
In 2024, Dr. Rojter's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and digestive system test (91200).
Where did Dr. Sergio E. Rojter go to medical school?
Dr. Rojter graduated from University of Buenos Aires in 1985.
What drugs does Dr. Sergio E. Rojter prescribe most?
In 2024 Medicare Part D data, Dr. Rojter's most prescribed drugs by claims were Ursodiol, Xifaxan and Prednisone.
Has Dr. Sergio E. Rojter received payments from drug or device companies?
CMS Open Payments shows $123,003 in general payments to Dr. Rojter from 14 companies from 2016 to 2025. The largest total came from Gilead Sciences, Inc.
How long has Dr. Sergio E. Rojter been practicing?
Dr. Rojter graduated from medical school in 1985, 41 years ago.
Does Dr. Sergio E. Rojter do research?
Dmand AI links 2 publications to Dr. Rojter, published from 2015 to 2019. Dr. Rojter has worked on 1 clinical trial.
Who does Dr. Sergio E. Rojter publish with?
Dr. Rojter's most frequent co-authors are Kyle P. Etzkorn, MD (1 shared paper), Bradley Lawrence Freilich, MD (1 shared paper) and Norman Gitlin, MD (1 shared paper).
What insurance does Dr. Sergio E. Rojter accept?
Dr. Rojter is in network with 13 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.
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