Alan L. Rosenfield, MD

Medicare activity in 2024

Official CMS public-use data for Alan L. Rosenfield, 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, methylprednisolone acetate, 1 mg (J1010)11,535 services
2. Hyaluronan or derivative, trivisc, for intra-articular injection, 1 mg (J7329)1,075 services
3. Injection, lidocaine hcl for intravenous infusion, 10 mg (J2001)588 services
4. Aspiration and/or injection of fluid large joint using ultrasound guidance (20611)541 services
5. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)495 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%
• Arthritis75%
• Diabetes53%
• Chronic kidney disease35%
• Ischemic heart disease26%

Hospitals where Alan L. Rosenfield works

Medicare's Facility Affiliation Data lists Alan L. Rosenfield 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 Mercy HospitalSan Diego, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050077

Practice locations

Addresses where Alan L. Rosenfield is enrolled with Medicare (CMS data updated October 2, 2026).

• 4077 5th AveSan Diego, CA 92103 (619) 359‑6600
• 8851 Ctr Dr, Suite 601La Mesa, CA 91942 (619) 441‑9811
• 9333 Genesee Ave, Suite 350San Diego, CA 92121 (858) 455‑6460

Group practices

Medicare enrollment lists Alan L. Rosenfield as a member of these groups (CMS data updated October 2, 2026).

• On Call Specialists Medical Group of San Diego Inc144 clinicians in the group
• Girard Orthopaedic Surgeons Medical Group Inc9 clinicians in the group

Specialties

• Orthopedic Surgeryprimary

Find other Orthopedic Surgery doctors in California →

Other orthopedic surgeons in San Diego

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

• Djani M. Robertson, MD
• David Burnikel, MD
• Ramin Raiszadeh, MD
• Katherine Wood, MD
• Joseph Mitchell, MD
• Takashi Hirase, MD
• Jason R. Kang, MD
• Lindsey S. Urband, MD

All orthopedic surgeons in San Diego →

Other clinicians in On Call Specialists Medical Group of San Diego Inc

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

• Anoop Karippot, MD
• Emad G. Tadros, MD
• Jose D. Rodriguez, MD
• Iman I. Mikhail, MD
• Jerrold Glassman, MD
• Michael J. Krzyzaniak, 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