Yahaira Lopez Arredondo, MD
NPI 1912203373 · Internal Medicine Physician · Portland, OR
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Yahaira Lopez Arredondo, MD is a Internal Medicine Physician provider in Portland, OR (NPI 1912203373).
Provider details
- NPI number
- 1912203373
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MD228338 (OR)
Specialties & taxonomies
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
15 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
594 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 | 386 | $153 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 54 | $16 |
| Telephone Medical Discussion With Physician, 5-10 Minutes99441 | 52 | $69 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 33 | $108 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 26 | $197 |
| Administration of Influenza Virus VaccineG0008 | 20 | $39 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 64 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 162 | 48 |
| Amlodipine Besylate | 156 | 50 |
| Metformin Hcl | 144 | 40 |
| Losartan Potassium | 136 | 44 |
| Pantoprazole Sodium | 121 | 41 |
| Empagliflozinbrand: Jardiance | 110 | 25 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$501 across 19 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
Additional practice locations (2)
- 3155 Kearney St Ste 100Fremont, CA 94538-2268Phone: (510) 931-4310Fax: (510) 894-0615
- 27171 Calaroga Ave Ste 1-3Hayward, CA 94545-4344Phone: (510) 931-4310Fax: (510) 894-0615
Registry dates
- Enumerated
- 2011-02-02
- Last updated
- 2026-03-04
- Certified
- 2026-03-04
Frequently asked questions
- What is Yahaira Lopez Arredondo's NPI number?
- Yahaira Lopez Arredondo's National Provider Identifier (NPI) is 1912203373, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Yahaira Lopez Arredondo's specialty?
- Yahaira Lopez Arredondo is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Yahaira Lopez Arredondo located?
- Yahaira Lopez Arredondo's practice location on file with NPPES is 19500 Se Stark St, Portland, OR 97233-5792.
- What is Yahaira Lopez Arredondo's phone number?
- The practice phone number listed in the NPPES registry for Yahaira Lopez Arredondo is (800) 813-2000.
- Does Yahaira Lopez Arredondo accept Medicare?
- Yahaira Lopez Arredondo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Yahaira Lopez Arredondo's NPI active?
- Yes — Yahaira Lopez Arredondo's NPI (1912203373) is active in the NPPES registry as of the last update on 2026-03-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.