Ahl Jeffrey Caseja, MD

Medicare activity in 2024

Official CMS public-use data for Ahl Jeffrey Caseja, 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)181 services
2. Blood glucose (sugar) test performed by hand-held instrument (82962)117 services
3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)43 services
4. Hemoglobin a1c level (83036)28 services
5. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)28 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%
• Diabetes64%
• Chronic kidney disease40%
• Arthritis39%
• Osteoporosis28%

Hospitals where Ahl Jeffrey Caseja works

Medicare's Facility Affiliation Data lists Ahl Jeffrey Caseja 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.

• PIH Health Downey HospitalDowney, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050393
• PIH Health Hospital-WhittierWhittier, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050169

Practice locations

Addresses where Ahl Jeffrey Caseja is enrolled with Medicare (CMS data updated October 2, 2026).

• 12400 Bloomfield AveSanta Fe Springs, CA 90670 (562) 967‑2820

Group practices

Medicare enrollment lists Ahl Jeffrey Caseja as a member of this group (CMS data updated October 2, 2026).

• PIH Health Physicians622 clinicians in the group

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in California →

Other internal medicine doctors in California

Clinicians with the same Medicare primary specialty in California — not a recommendation.

• Ngoc Mai T. Tran, MD
• Dennis L. Clark, MD
• Alexander P. Ford, MD
• Meenakshi Jain, MD
• Jian Zhang, MD
• Bakul T. Roy, MD
• My-Nghi Lo, MD
• Tan L. Wong, MD

All internal medicine doctors in California →

Other clinicians in PIH Health Physicians

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

• Jaime A. Diaz, MD
• Michel Darazi, DO
• William H. Slattery Iii, MD
• Amber R. Lin
• Ted T. Park, MD
• Keith T. Cochran, 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