Matthew K. Sundblad, MD

Medicare activity in 2024

Official CMS public-use data for Matthew K. Sundblad, 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. Anesthesia for lens surgery (00142)71 services
2. Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) (64415)37 services
3. Insertion of artery tube for blood sampling or infusion through skin (36620)36 services
4. Ultrasonic guidance for blood vessel access (76937)35 services
5. Anesthesia for extensive surgery on spine (00670)29 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 pressure68%
• Arthritis59%
• Ischemic heart disease29%
• Chronic kidney disease24%
• Osteoporosis22%

Hospitals where Matthew K. Sundblad works

Medicare's Facility Affiliation Data lists Matthew K. Sundblad 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 Green HospitalLa Jolla, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: not listed by Medicare · CCN 050424

Practice locations

Addresses where Matthew K. Sundblad is enrolled with Medicare (CMS data updated October 2, 2026).

• 3626 Ruffin RdSan Diego, CA 92123 (619) 565‑9666

Group practices

Medicare enrollment lists Matthew K. Sundblad as a member of this group (CMS data updated October 2, 2026).

• Anesthesia Service Medical Group246 clinicians in the group

Specialties

• Anesthesiologyprimary

Find other Anesthesiology doctors in California →

Other anesthesiologists in San Diego

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

• Daniel E. Lee, MD
• Thu Q. Nguyen, MD
• John J. Lee, MD
• Gregory R. Polston, MD
• Sheila M. Rajashekara, MD
• Melissa A. Ramsey, MD
• Stanley W. Perkins, MD
• Daniel H. Sears, MD

All anesthesiologists in San Diego →

Other clinicians in Anesthesia Service Medical Group

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

• Thu Q. Nguyen, MD
• Lars R. Newsome, MD
• John J. Lee, MD
• Angela S. Forbes, DO
• Shrilekha M. Champaneri, MD
• Billy K. Tran, 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