Dr. Robert S. Wen, MD
- Medicare patients, 2024
- 16
- Part D claims, 2024
- 1,465
- Publications
- 1
- Hospital affiliations
- 1
- Industry payments
- $385
- Practice address
- 10800 Magnolia Avenue, Riverside, CA 92505
- Practice phone
- Call (951) 353-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Wen'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. Robert S. Wen is a gastroenterologist in Riverside, California
Dr. Wen practices at Riverside Medical Center in Riverside, California, part of Kaiser Permanente.
Dr. Wen's NPI, 1790852507, was assigned on November 29, 2006. Dr. Wen graduated from Icahn School Of Medicine At Mount Sinai in 1992. Dr. Wen's California license number on file is G82085.
- NPI
- 1790852507NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9537050778
- NPI enumeration date
- November 29, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (951) 353-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 60
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Robert S. Wen practices at Riverside Medical Center in Riverside, California
Dr. Wen's primary practice is Riverside Medical Center, at 10800 Magnolia Avenue, Riverside, CA 92505 in Riverside County. The practice phone is (951) 353-2000.
- Riverside Medical Center10800 Magnolia Avenue, Riverside, CA 92505 · Riverside CountyPhone(951) 353-2000
Source: Dmand AI Affiliation Data
Dr. Robert S. Wen is affiliated with 1 site of care and 1 medical group
Dr. Wen's primary practice is Riverside Medical Center in Riverside, California, part of Kaiser Permanente. The medical group on file is Southern California Permanente Medical Group.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Robert S. Wen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Wen practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Riverside Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Robert S. Wen is one of 1,977 gastroenterologists in California
Gastroenterology is Dr. Wen's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Wen is board certified in gastroenterology by the American Board of Internal Medicine. Dmand AI has Dr. Wen's licenses on file in 4 states: California, Texas, New Jersey and New York.
Specialties and state licenses
- Gastroenterology, CaliforniaPrimary
- Texas license
- New Jersey license
- New York license
Gastroenterologists near Dr. Wen
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. Robert S. Wen treated 16 Medicare patients in 2024, average age 65
CMS counts 16 Medicare patients who saw Dr. Wen in 2024. The largest group is 85 and over, with 0 patients. 69% of them have high cholesterol. Their average risk score is 1.71, 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. Wen's median patient age at 59, with 60% women.
Dr. Wen's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Wen's Medicare patients, 2024
- High cholesterol69%
Share of Medicare patients with each condition. A patient can have several.
Dr. Wen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 59
Patient panel by sex, all payers
- Women60%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Robert S. Wen wrote 1,465 Medicare Part D claims in 2024
In 2024, Dr. Wen wrote 1,465 Medicare Part D claims for 811 patients. 95% of them were for generic drugs. CMS names the drug for 1,331 of them, across 11 drugs with 11 or more claims each, at $47,468 in total drug cost. In 2023, CMS named 1,415 claims across 14 drugs.
Dr. Wen's Part D claims by kind of drug, 2024
- Generic1,394 claims95%
- Brand-name71 claims5%
Dr. Wen'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. Wen's Part D claims, 2024
- Antibiotics2%22 of 1,465 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: 1,4152024: 1,3316%
Drugs named by CMS: 11 in 2024, 14 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
How Dr. Robert S. Wen takes part in Medicare
Dr. Wen accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
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. Robert S. Wen has 1 publication on record
Dmand AI links 1 paper to Dr. Wen in 2020. Dr. Wen's most frequent co-authors are Taruna Bhatia, MD, Charles Thomas Chaya, MD and Brian Sehoon Lim, MD.
Dr. Wen's most frequent co-authors
- Taruna Bhatia, MD1 shared paper
- Charles Thomas Chaya, MD1 shared paper
- Brian Sehoon Lim, MD1 shared paper
Recent publications by Dr. Wen
See who Dr. Wen researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Wen works with, so you can find a warm path to the right gastroenterologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Robert S. Wen received $385 in industry payments from 2017 to 2024
CMS Open Payments shows 4 general payments to Dr. Wen from 4 drug and device companies from 2017 to 2024. Food and beverage make up the largest share, 100% of the total. Allergan Inc. paid the most, $147.
General payments to Dr. Wen by program year, 2017 to 2024
Companies that paid Dr. Wen the most, 2017 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Robert S. Wen has 1 award and honors on record
Dmand AI lists 1 award for Dr. Wen, most recently CMS Stage 1 2012 in 2011.
Awards and honors for Dr. Wen
- 2011
- CMS Stage 1 2012
Source: Dmand AI Professional Profile Data
Dr. Robert S. Wen graduated from Icahn School Of Medicine At Mount Sinai
Dr. Wen graduated from Icahn School Of Medicine At Mount Sinai in 1992.
- Medical school
- Board certified in gastroenterology
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Robert S. Wen accepts plans from 2 insurance carriers
Dr. Wen is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Wen accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Robert S. Wen'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 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. Robert S. Wen
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. Robert S. Wen's NPI number?
Dr. Robert S. Wen's NPI number is 1790852507. It was assigned on November 29, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert S. Wen?
Dr. Robert S. Wen is a gastroenterologist in Riverside, California. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Robert S. Wen practice?
Dr. Wen practices at 10800 Magnolia Avenue, Riverside, CA 92505. Dr. Wen's primary practice is Riverside Medical Center in Riverside, California, part of Kaiser Permanente.
What is Dr. Robert S. Wen's office phone number?
The practice phone on file for Dr. Wen is (951) 353-2000.
What is Dr. Robert S. Wen's medical license number?
Dr. Wen's California license number on file is G82085, one of the licenses on file in 4 states.
Which states has Dr. Robert S. Wen been licensed in?
Dmand AI has state licenses on file for Dr. Wen in California (1995 to 2025), Texas (2003 to 2004), New Jersey (2000 to 2003) and New York (1994 to 2001).
Which hospitals is Dr. Robert S. Wen affiliated with?
Dr. Wen practices at Riverside Medical Center in Riverside, California.
What medical group is Dr. Robert S. Wen part of?
Dr. Wen is linked to Southern California Permanente Medical Group.
Does Dr. Robert S. Wen accept Medicare?
Yes. CMS lists Dr. Wen as accepting Medicare assignment.
How many Medicare patients does Dr. Robert S. Wen see?
CMS counts 16 Medicare patients who saw Dr. Wen in 2024, with an average age of 65.
Show 8 more questionsShow fewer questions
Is Dr. Robert S. Wen board certified?
Yes. Dr. Wen is board certified in gastroenterology by the American Board of Internal Medicine.
Where did Dr. Robert S. Wen go to medical school?
Dr. Wen graduated from Icahn School Of Medicine At Mount Sinai in 1992.
What drugs does Dr. Robert S. Wen prescribe most?
In 2024 Medicare Part D data, Dr. Wen's most prescribed drugs by claims were Gavilyte-C, Omeprazole and Pantoprazole Sodium.
Has Dr. Robert S. Wen received payments from drug or device companies?
CMS Open Payments shows $385 in general payments to Dr. Wen from 4 companies from 2017 to 2024. The largest total came from Allergan Inc.
How long has Dr. Robert S. Wen been practicing?
Dr. Wen graduated from medical school in 1992, 34 years ago.
Does Dr. Robert S. Wen do research?
Dmand AI links 1 publication to Dr. Wen.
Who does Dr. Robert S. Wen publish with?
Dr. Wen's most frequent co-authors are Taruna Bhatia, MD (1 shared paper), Charles Thomas Chaya, MD (1 shared paper) and Brian Sehoon Lim, MD (1 shared paper).
What insurance does Dr. Robert S. Wen accept?
Dr. Wen is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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