Ruth Lopez, MD
NPI 1174150478 · Family Medicine Physician · Riverdale, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ruth Lopez, MD is a Family Medicine Physician provider in Riverdale, CA (NPI 1174150478).
Provider details
- NPI number
- 1174150478
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- A181011 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 · 35 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 117 | 54 |
| Metformin Hcl | 72 | 31 |
| Amlodipine Besylate | 61 | 19 |
| Levothyroxine Sodium | 58 | 20 |
| Lisinopril | 53 | 26 |
| Losartan Potassium | 45 | 16 |
| Empagliflozin |
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-03-25
- Last updated
- 2025-11-25
- Certified
- 2025-11-25
Frequently asked questions
- What is Ruth Lopez's NPI number?
- Ruth Lopez's National Provider Identifier (NPI) is 1174150478, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ruth Lopez's specialty?
- Ruth Lopez is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ruth Lopez located?
- Ruth Lopez's practice location on file with NPPES is 3567 W Mount Whitney Ave, Riverdale, CA 93656.
- What is Ruth Lopez's phone number?
- The practice phone number listed in the NPPES registry for Ruth Lopez is (559) 867-7200.
- Does Ruth Lopez accept Medicare?
- Ruth Lopez is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ruth Lopez's NPI active?
- Yes — Ruth Lopez's NPI (1174150478) is active in the NPPES registry as of the last update on 2025-11-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.