Quick answers
- Does Michelle P. Zhang accept Medicare assignment?
- Yes. Medicare's clinician data says Michelle P. Zhang 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 Michelle P. Zhang see?
- In 2024, CMS data shows 552 Original Medicare patients and 1,265 services for Michelle P. Zhang. This counts Original Medicare only and measures volume, not quality.
- What is Michelle P. Zhang's NPI number?
- 1538521422. 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 Michelle P. Zhang, 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 | 552 |
|---|---|
| Services billed to Medicare | 1,265 |
| Different services or procedures | 29 |
| Participating Medicare provider | Yes |
| Average age of these patients | 78 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)473 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)144 services
- Critical care, first 30-74 minutes (99291)128 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)95 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)90 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%
- Arthritis53%
- Ischemic heart disease45%
- COPD44%
- Chronic kidney disease42%
Hospitals where Michelle P. Zhang works
Medicare's Facility Affiliation Data lists Michelle P. Zhang 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.
- Scripps Memorial Hospital - EncinitasEncinitas, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050503
- Scripps Memorial Hospital La JollaLa Jolla, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050324
- Tri-City Medical CenterOceanside, CA · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 050128
Practice locations
Addresses where Michelle P. Zhang is enrolled with Medicare (CMS data updated October 2, 2026).
- 2067 W Vista Way, Suite 160Vista, CA 92083 (760) 230‑8994
- 326 Santa Fe Dr, Suite 100Encinitas, CA 92024 (818) 462‑0990
- 354 Santa Fe DrEncinitas, CA 92024 (760) 943‑8806
- 9888 Genesee AveLa Jolla, CA 92037 (760) 943‑8806
Group practices
Medicare enrollment lists Michelle P. Zhang as a member of these groups (CMS data updated October 2, 2026).
- Acute Care Associates Inc29 clinicians in the group
- Scott a Eisman MD Inc13 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Vista
Clinicians with the same Medicare primary specialty in Vista, CA — not a recommendation.
Other clinicians in Acute Care Associates Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Medical school | Boston University School Of Medicine |
|---|---|
| Graduation year | 2016 (10 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1538521422 |
| 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