Ashton B. Christian, MD

Medicare activity in 2024

Official CMS public-use data for Ashton B. Christian, 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. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)26 services
2. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)13 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%
• Atrial fibrillation39%
• Arthritis36%
• Ischemic heart disease36%
• Chronic kidney disease36%

Hospitals where Ashton B. Christian works

Medicare's Facility Affiliation Data lists Ashton B. Christian 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.

• Providence Mission HospitalMission Viejo, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050567

Practice locations

Addresses where Ashton B. Christian is enrolled with Medicare (CMS data updated October 2, 2026).

• 24411 Health Ctr Dr, Suite 350Laguna Hills, CA 92653 (949) 457‑7900
• 27799 Medical Ctr Rd, Suite 440Mission Viejo, CA 92691 (949) 364‑1007

Group practices

Medicare enrollment lists Ashton B. Christian as a member of this group (CMS data updated October 2, 2026).

• South Orange County Surgical Medical Group Inc23 clinicians in the group

Specialties

• General Surgeryprimary

Find other General Surgery doctors in California →

Other general surgeons in Laguna Hills

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

• Jason Wong, MD
• Elsie M. Rodebeck, MD
• Amy K. Bremner, MD
• John K. Shaver, MD
• William C. Wallace, MD
• Blake A. Ashley, MD
• Louise Bacon, MD
• Marla R. Anderson, MD

All general surgeons in Laguna Hills →

Other clinicians in South Orange County Surgical Medical Group Inc

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

• Jason Wong, MD
• Elsie M. Rodebeck, MD
• Robbin C. Gonzales, PA
• Matthew T. Brady, MD
• Cassandra R. Braunstein, PA
• Elizabeth A. Moskaitis, PA

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