Hany Abdel-Messeh, MD

Medicare activity in 2024

Official CMS public-use data for Hany Abdel-Messeh, 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)117 services
2. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)81 services
3. Advance care planning, first 30 minutes (99497)52 services
4. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)35 services
5. Chronic care management services for two or more chronic conditions, first 30 minutes provided personally by health care professional, per calendar month (99491)21 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%
• Arthritis60%
• Diabetes48%
• Chronic kidney disease42%
• COPD34%

Hospitals where Hany Abdel-Messeh works

Medicare's Facility Affiliation Data lists Hany Abdel-Messeh 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.

• Antelope Valley HospitalLancaster, CA · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 050056
• Henry Mayo Newhall HospitalValencia, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: not listed by Medicare · CCN 050624

Practice locations

Addresses where Hany Abdel-Messeh is enrolled with Medicare (CMS data updated October 2, 2026).

• 1642 W Ave JLancaster, CA 93534 (661) 942‑8463
• 44215 15th St W, Suite 103Lancaster, CA 93534 (661) 948‑4429
• 6067 Oak Fence LnLancaster, CA 93536 (661) 270‑2140

Group practices

Medicare enrollment lists Hany Abdel-Messeh as a member of these groups (CMS data updated October 2, 2026).

• Horizon Multicare Group Inc28 clinicians in the group
• Unified Health Associates11 clinicians in the group

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Lancaster

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

• Rendell E. Manalo, DO
• Matthew Lopez, MD
• Deepak Shivaram, MD
• Brenda Pelayo, DO
• Arkady Hovssepian, DO
• Gyanesh Agrawal, MD
• Shankar N. Hittalmani, MD
• Caleb M. Lowe, DO

All internal medicine doctors in Lancaster →

Other clinicians in Horizon Multicare Group Inc

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

• Hazem Aboaid, MD
• Arkady Hovssepian, DO
• Atef Mousa, DO
• Pejman G. Mansourian, MD
• Everardo Arias Torres, MD
• John Anthony B. Teotico, 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