Quick answers
- Does William W. Millard Ii accept Medicare assignment?
- Yes. Medicare's clinician data says William W. Millard Ii 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 William W. Millard Ii see?
- In 2024, CMS data shows 2,694 Original Medicare patients and 7,634 services for William W. Millard Ii. This counts Original Medicare only and measures volume, not quality.
- What is William W. Millard Ii's NPI number?
- 1356632889. 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 William W. Millard Ii, 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 | 2,694 |
|---|---|
| Services billed to Medicare | 7,634 |
| Different services or procedures | 166 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Injection, gadoterate meglumine, 0.1 ml (A9575)1,960 services
- Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (Q9967)1,150 services
- X-ray of chest, 1 view (71045)675 services
- Ct scan head or brain without contrast (70450)327 services
- Screening 3d breast mammography (77063)240 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 blood pressure75%
- High cholesterol75%
- Arthritis56%
- Diabetes39%
- Ischemic heart disease35%
- Chronic kidney disease33%
Hospitals where William W. Millard Ii works
Medicare's Facility Affiliation Data lists William W. Millard Ii 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.
- Sharp Chula Vista Medical CenterChula Vista, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050222
- Sharp Coronado Hospital and Healthcare CenterCoronado, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050234
- Sharp Memorial HospitalSan Diego, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050100
- UC San Diego Health Hillcrest - Hillcrest Medical CenterSan Diego, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050025
Practice locations
Addresses where William W. Millard Ii is enrolled with Medicare (CMS data updated October 2, 2026).
- 765 Medical Ctr CtChula Vista, CA 91911 (619) 397‑6577
- 7901 Frost StSan Diego, CA 92123 (858) 939‑3600
Group practices
Medicare enrollment lists William W. Millard Ii as a member of these groups (CMS data updated October 2, 2026).
- San Diego Diagnostic Radiology Medical Group Inc47 clinicians in the group
- San Diego Imaging-Chula Vista LLC43 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
- Interventional Radiologyalso
Other radiologists in Chula Vista
Clinicians with the same Medicare primary specialty in Chula Vista, CA — not a recommendation.
Other clinicians in San Diego Diagnostic Radiology Medical Group Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Loma Linda University School Of Medicine |
| Graduation year | 2011 (15 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1356632889 |
| 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