Quick answers
- Does January K. Lopez accept Medicare assignment?
- Yes. Medicare's clinician data says January K. Lopez accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does January K. Lopez see?
- In 2024, CMS data shows 2,480 Original Medicare patients and 4,262 services for January K. Lopez. This counts Original Medicare only and measures volume, not quality.
- What is January K. Lopez's NPI number?
- 1225138936. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for January K. Lopez, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 2,480 |
|---|---|
| Services billed to Medicare | 4,262 |
| Different services or procedures | 144 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Screening mammography (77067)819 services
- Screening 3d breast mammography (77063)793 services
- Dxa bone density measurement of hip, pelvis, spine (77080)480 services
- Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) (G0279)271 services
- X-ray of chest, 1 view (71045)228 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol75%
- High blood pressure66%
- Arthritis51%
- Osteoporosis32%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)26%
- Anxiety24%
Hospitals where January K. Lopez works
Medicare's Facility Affiliation Data lists January K. Lopez at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Hoag Memorial Hospital PresbyterianNewport Beach, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050224
- Hoag Orthopedic InstituteIrvine, CA · Acute Care Hospital · Emergency services: not listed by Medicare · CCN 050769
Practice locations
Addresses where January K. Lopez is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 9; the Medicare profile lists all.
- 1 Hoag DrNewport Beach, CA 92663 (949) 645‑3534
- 15000 Kensington Park Dr, Suite 150Tustin, CA 92782 (714) 477‑8340
- 16200 Sand Canyon AveIrvine, CA 92618 (949) 764‑4624
- 16250 Sand Canyon AveIrvine, CA 92618 (949) 365‑3534
- 19582 Beach Blvd, Suite 160Huntington Beach, CA 92648 (714) 378‑4992
Group practices
Medicare enrollment lists January K. Lopez as a member of these groups (CMS data updated October 2, 2026).
- Newport Harbor Radiology Associates Medical Group Inc70 clinicians in the group
- Newport Center Radiology Associates Medical Group Inc59 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Newport Beach
Clinicians with the same Medicare primary specialty in Newport Beach, CA — not a recommendation.
Other clinicians in Newport Harbor Radiology Associates Medical Group Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, Geffen School Of Medicine |
| Graduation year | 2004 (22 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1225138936 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians