Gregory Riva, M.D.
NPI 1700088630 · Cardiovascular Disease Physician · Hemet, CA
Enrolled with Medicare as Practitioner - Cardiac Electrophysiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Riva, M.D. is a Cardiovascular Disease Physician provider in Hemet, CA (NPI 1700088630).
Provider details
- NPI number
- 1700088630
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A94572 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
2,487 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,007 | $132 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 675 | $15 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 117 | $205 |
| Programming of Dual Lead Pacemaker System93280 | 85 | $82 |
| Evaluation of Implantable Heart and Blood Vessel Monitoring System93290 | 75 | $47 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 69 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Apixabanbrand: Eliquis | 316 | 84 |
| Carvedilol | 303 | 91 |
| Sacubitril/Valsartanbrand: Entresto | 273 | 70 |
| Furosemide | 245 | 79 |
| Losartan Potassium | 222 | 70 |
| Atorvastatin Calcium | 193 | 59 |
| Amlodipine Besylate | 172 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,597 across 67 records (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
- 2007-06-04
- Last updated
- 2022-09-26
- Certified
- 2022-09-26
Frequently asked questions
- What is Gregory Riva's NPI number?
- Gregory Riva's National Provider Identifier (NPI) is 1700088630, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Riva's specialty?
- Gregory Riva is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Riva located?
- Gregory Riva's practice location on file with NPPES is 1275 E Latham Ave Ste a, Hemet, CA 92543-4424.
- What is Gregory Riva's phone number?
- The practice phone number listed in the NPPES registry for Gregory Riva is (951) 652-5555.
- Does Gregory Riva accept Medicare?
- Gregory Riva is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Riva's NPI active?
- Yes — Gregory Riva's NPI (1700088630) is active in the NPPES registry as of the last update on 2022-09-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.