Zhi Peng Dai, DO

Medicare activity in 2024

Official CMS public-use data for Zhi Peng Dai, 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.

Most frequent services

1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)305 services
2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)249 services
3. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)86 services
4. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)46 services
5. Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza (87428)34 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 pressure69%
• Arthritis44%
• Diabetes27%
• Ischemic heart disease23%
• Chronic kidney disease21%

Hospitals where Zhi Peng Dai works

Medicare's Facility Affiliation Data lists Zhi Peng Dai 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.

• John Muir Medical Center - Concord CampusConcord, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050496
• John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050180

Practice locations

Addresses where Zhi Peng Dai is enrolled with Medicare (CMS data updated October 2, 2026).

• 2700 Grant St, Suite 200Concord, CA 94520 (925) 674‑0500

Group practices

Medicare enrollment lists Zhi Peng Dai as a member of this group (CMS data updated October 2, 2026).

• John Muir Physician Network494 clinicians in the group

Specialties

• Family Practiceprimary

Find other Family Practice doctors in California →

Other family doctors in Concord

Clinicians with the same Medicare primary specialty in Concord, CA — not a recommendation.

• Saw Sein, MD
• Robert D. Rowley, MD
• Nicole Nurse, DO
• Kristina M. Carpenter, DO
• Rami Fasheh, MD
• Rachelle T. Hanft, MD
• Lisa M. Rodelo, MD
• Jennifer Decolongon, MD

All family doctors in Concord →

Other clinicians in John Muir Physician Network

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Grace S. Chou, MD
• Emily Lin, MD
• Michelle J. Lim, DO
• Patricia Y. Matus, MD
• Andrew J. Benn, MD
• Viktoriya V. Sharp, MD

Clinician information

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

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians