Joshua D. Penfield, MD

Medicare activity in 2024

Official CMS public-use data for Joshua D. Penfield, 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. Injection, midazolam hydrochloride, per 1 mg (J2250)455 services
2. Use of a drug to induce depression of consciousness by physician performing a procedure, each additional 15 minutes (99153)117 services
3. Injection, fentanyl citrate, 0.1 mg (J3010)82 services
4. Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (G0500)74 services
5. Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)45 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 pressure65%
• High cholesterol61%
• Arthritis38%
• Diabetes24%
• Chronic kidney disease20%
• Depression19%

Hospitals where Joshua D. Penfield works

Medicare's Facility Affiliation Data lists Joshua D. Penfield 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 Memorial HospitalSan Diego, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050100

Practice locations

Addresses where Joshua D. Penfield is enrolled with Medicare (CMS data updated October 2, 2026).

• 10670 Wexford StSan Diego, CA 92131 (858) 621‑4002
• 2929 Health Ctr DrSan Diego, CA 92123 (858) 499‑2600

Group practices

Medicare enrollment lists Joshua D. Penfield as a member of this group (CMS data updated October 2, 2026).

• Sharp Rees-Stealy Medical Group Inc884 clinicians in the group

Specialties

• Gastroenterologyprimary

Find other Gastroenterology doctors in California →

Other gastroenterologists in San Diego

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

• Michael Lajin, MD
• Kristina M. Seeger, MD
• Benjamin Fiore, MD
• Andrew M. Su, MD
• Amber N. Hildreth, DO
• Sally Stipho, MD
• Fady Youssef, MD
• Shailja C. Shah, MD

All gastroenterologists in San Diego →

Other clinicians in Sharp Rees-Stealy Medical Group Inc

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

• Cristina Coronado, MD
• Lauren K. Pai, PT
• Michelle A. Hansen, PT
• Lynn E. Komar, PT
• Tiffany L. Shay Alexander, MD
• Melissa L. Spence, 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