Ronald Ortizo
NPI 1124405956 · Gastroenterology Physician · Riverside, CA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ronald Ortizo is a Gastroenterology Physician provider in Riverside, CA (NPI 1124405956).
Provider details
- NPI number
- 1124405956
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- A147111 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
11 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
622 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 150 | $20 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 149 | $242 |
| Moderate Sedation Services Provided By the Same Physician Or Other Qualified Health Care Professional Performing a Gastrointestinal Endoscopic Service That Sedation Supports, Requiring the Presence of an Independent Trained Observer to Assist in the MonitoG0500 | 119 | $6 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 70 | $132 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 55 | $171 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 24 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 407 | 177 |
| Famotidine | 184 | 76 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-C | 128 | 126 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 114 | 104 |
| Pantoprazole Sodium | 77 | 29 |
| Loperamide Hclbrand: Loperamide | 56 | 22 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Peg-3350 and Electrolytes |
Practice location
Mailing address
Additional practice locations (1)
- 7117 Brockton AveRiverside, CA 92506-2658Phone: (951) 321-6329Fax: (951) 784-5568
Registry dates
- Enumerated
- 2015-04-30
- Last updated
- 2025-04-15
- Certified
- 2025-04-15
Frequently asked questions
- What is Ronald Ortizo's NPI number?
- Ronald Ortizo's National Provider Identifier (NPI) is 1124405956, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ronald Ortizo's specialty?
- Ronald Ortizo is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Ronald Ortizo located?
- Ronald Ortizo's practice location on file with NPPES is 6405 Day St, Riverside, CA 92507-0901.
- What is Ronald Ortizo's phone number?
- The practice phone number listed in the NPPES registry for Ronald Ortizo is (951) 697-5464.
- Does Ronald Ortizo accept Medicare?
- Ronald Ortizo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ronald Ortizo's NPI active?
- Yes — Ronald Ortizo's NPI (1124405956) is active in the NPPES registry as of the last update on 2025-04-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.