Dr. Benjamin Chung, MD
- Medicare services, 2024
- 221
- Medicare patients, 2024
- 87
- Part D claims, 2024
- 1,129
- Industry payments
- $894
- Affiliated sites
- 1
- Practice address
- 4244 Riverwalk Parkway, Suite 210, Riverside, CA 92505
- Practice phone
- Call (951) 321-0100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Riverwalk Surgery Center - Riverside
Surgery Center - Medicare-Certified · Riverside, California
Find Dr. Chung's professional email, personal email and mobile number
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Dr. Benjamin Chung is an internist in Riverside, California
Dr. Chung practices at Riverwalk Surgery Center - Riverside in Riverside, California.
Dr. Chung's NPI, 1326031923, was assigned on August 30, 2005. Dr. Chung graduated from Hahnemann University College of Medicine in 1985. Dr. Chung holds California license G70147.
- NPI
- 1326031923NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6305732777
- NPI enumeration date
- August 30, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (951) 321-0100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- 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. Benjamin Chung practices at Riverwalk Surgery Center - Riverside in Riverside, California
Dr. Chung's primary practice is Riverwalk Surgery Center - Riverside, at 4244 Riverwalk Parkway, Suite 210, Riverside, CA 92505. The practice phone is (951) 321-0100.
- Riverwalk Surgery Center - Riverside4244 Riverwalk Parkway, Suite 210, Riverside, CA 92505Phone(951) 321-0100
Source: Dmand AI Affiliation Data
Dr. Benjamin Chung is affiliated with 1 site of care
Dr. Chung's primary practice is Riverwalk Surgery Center - Riverside in Riverside, California. Dr. Chung's employer is on file too: a surgery center (asc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Benjamin Chung's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chung practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Riverwalk Surgery Center - Riverside | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Benjamin Chung is one of 16,751 internists in California
Internal medicine is Dr. Chung's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Chung is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Chung
Counts of internists 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. Benjamin Chung billed Medicare for 221 services in 2024
CMS data shows 221 Medicare services from Dr. Chung across 4 procedure codes in 2024, for 87 Medicare patients. Medicare paid $20,463 for them.
Dr. Chung's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1862024: 1775%
- Surgery
- 2023: 402024: 4410%
Where Dr. Chung's Medicare services took place, 2024
- In an office17780%
- In a facility4420%
Dr. Chung compared with the California median for internists, 2024
- Dr. Chung
- California median
- Medicare services
- 221vs 36139% below
- Medicare patients
- 87vs 15142% below
- Part D claims
- 1,011vs 4212.4 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Chung'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chung and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Benjamin Chung treated 87 Medicare patients in 2024, average age 68
CMS counts 87 Medicare patients who saw Dr. Chung in 2024. The largest group is 65 to 74, with 52 patients. 75% of them have high blood pressure, and 68% have high cholesterol. Their average risk score is 1.38, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chung's median patient age at 58, with 63% women.
Dr. Chung's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Chung's Medicare patients by sex, 2024
- Women5563%
- Men3237%
Chronic conditions among Dr. Chung's Medicare patients, 2024
- High blood pressure75%
- High cholesterol68%
- Arthritis47%
- Diabetes45%
- Ischemic heart disease23%
- Chronic kidney disease22%
- Anxiety20%
- Mood disorders20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chung'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
- Women63%
- Men37%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Benjamin Chung wrote 1,129 Medicare Part D claims in 2024
In 2024, Dr. Chung wrote 1,129 Medicare Part D claims for 343 patients. 90% of them were for generic drugs. CMS names the drug for 1,011 of them, across 15 drugs with 11 or more claims each, at $17,731 in total drug cost. In 2023, CMS named 926 claims across 16 drugs.
Dr. Chung's Part D claims by kind of drug, 2024
- Generic1,012 claims90%
- Brand-name105 claims9%
- Other12 claims1%
Dr. Chung'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. Chung's Part D claims, 2024
- Antibiotics2%23 of 1,129 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: 9262024: 1,0119%
Drugs named by CMS: 15 in 2024, 16 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. Benjamin Chung ranks in the 91st percentile for colonoscopy in Medicare
Dr. Chung accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 173 procedures of colonoscopy by Dr. Chung, more than 91% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Chung ranks in Medicare procedure volume
- Colonoscopy
- 91st percentile173 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 84th percentile142 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Benjamin Chung received $894 in industry payments from 2018 to 2025
CMS Open Payments shows 20 general payments to Dr. Chung from 8 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 66% of the total. Dornier MedTech America, Inc paid the most, $324.
General payments to Dr. Chung by program year, 2018 to 2025
General payments to Dr. Chung by kind, 2018 to 2025
- Food and beverage$59066%
- Travel and lodging$22225%
- Gifts$829%
Companies that paid Dr. Chung the most, 2018 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Benjamin Chung graduated from Hahnemann University College of Medicine
Dr. Chung graduated from Hahnemann University College of Medicine in 1985.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Benjamin Chung'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand 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)Doctors and Clinicians Utilization Data (CMS) (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 |
| 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. Benjamin Chung
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. Benjamin Chung's NPI number?
Dr. Benjamin Chung's NPI number is 1326031923. It was assigned on August 30, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Benjamin Chung?
Dr. Benjamin Chung is an internist in Riverside, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Benjamin Chung practice?
Dr. Chung practices at 4244 Riverwalk Parkway, Suite 210, Riverside, CA 92505. Dr. Chung's primary practice is Riverwalk Surgery Center - Riverside in Riverside, California.
What is Dr. Benjamin Chung's office phone number?
The practice phone on file for Dr. Chung is (951) 321-0100.
What is Dr. Benjamin Chung's medical license number?
Dr. Chung holds California license G70147.
Does Dr. Benjamin Chung accept Medicare?
Yes. CMS data shows Dr. Chung billed Medicare for 221 services in 2024, and Dr. Chung accepts Medicare assignment.
How many Medicare patients does Dr. Benjamin Chung see?
CMS counts 87 Medicare patients who saw Dr. Chung in 2024, with an average age of 68.
What services does Dr. Benjamin Chung bill to Medicare?
In 2024, Dr. Chung's most billed Medicare services were office visit, established patient (99214), surgery: digestive system (43239) and office visit, new patient (99204).
Where did Dr. Benjamin Chung go to medical school?
Dr. Chung graduated from Hahnemann University College of Medicine in 1985.
What drugs does Dr. Benjamin Chung prescribe most?
In 2024 Medicare Part D data, Dr. Chung's most prescribed drugs by claims were Omeprazole, Gavilyte-G and Lactulose.
Has Dr. Benjamin Chung received payments from drug or device companies?
CMS Open Payments shows $894 in general payments to Dr. Chung from 8 companies from 2018 to 2025. The largest total came from Dornier MedTech America, Inc.
How long has Dr. Benjamin Chung been practicing?
Dr. Chung graduated from medical school in 1985, 41 years ago.
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