Robert Wen, MD
NPI 1790852507 · Gastroenterology Physician · Riverside, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Wen, MD is a Gastroenterology Physician provider in Riverside, CA (NPI 1790852507).
Provider details
- NPI number
- 1790852507
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G82085 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-C | 648 | 598 |
| Omeprazole | 312 | 117 |
| Pantoprazole Sodium | 149 | 46 |
| Lansoprazole | 40 | 11 |
| Cholestyraminebrand: Cholestyramine Light | 38 | 19 |
| Mesalamine | 36 | 13 |
| Budesonidebrand: Budesonide Dr | 29 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$28 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-29
- Last updated
- 2021-11-22
Frequently asked questions
- What is Robert Wen's NPI number?
- Robert Wen's National Provider Identifier (NPI) is 1790852507, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Wen's specialty?
- Robert Wen is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Wen located?
- Robert Wen's practice location on file with NPPES is 10800 Magnolia Ave, Riverside, CA 92505-3043.
- What is Robert Wen's phone number?
- The practice phone number listed in the NPPES registry for Robert Wen is (909) 353-2000.
- Does Robert Wen accept Medicare?
- Robert Wen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Wen's NPI active?
- Yes — Robert Wen's NPI (1790852507) is active in the NPPES registry as of the last update on 2021-11-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.