Bassam K. Nassir, MD

Medicare activity in 2024

Official CMS public-use data for Bassam K. Nassir, 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. Insertion of needle into vein for collection of blood sample (36415)229 services
2. Blood glucose (sugar) test performed by hand-held instrument (82962)14 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%
• Arthritis51%
• Diabetes46%
• Osteoporosis28%
• Chronic kidney disease26%

Hospitals where Bassam K. Nassir works

Medicare's Facility Affiliation Data lists Bassam K. Nassir 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.

• Grossmont HospitalLa Mesa, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050026
• 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 Bassam K. Nassir is enrolled with Medicare (CMS data updated October 2, 2026).

• 120 Town Ctr PkwySantee, CA 92071 (619) 662‑4100
• 1637 3rd Ave, Suite BChula Vista, CA 91911 (619) 662‑4100
• 4004 Beyer BlvdSan Ysidro, CA 92173 (619) 428‑4463
• 4050 Beyer BlvdSan Ysidro, CA 92173 (619) 662‑4100
• 875 El Cajon BlvdEl Cajon, CA 92020 (619) 662‑4100

Group practices

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

• Centro de Salud de la Comunidad de San Ysidro, Inc.297 clinicians in the group

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Santee

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

• Halyna Y. West, MD
• David Corbin, MD
• Noor Al-Ameri, MD
• Abbas Ali, MD
• Tamara Mansy, MD
• Mariana V. Salerno, MD
• Candice M. Hanna, DO

All internal medicine doctors in Santee →

Other clinicians in Centro de Salud de la Comunidad de San Ysidro, Inc.

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

• Myrna L. Coronado, MD
• Anita K. Koo, OD
• Alaysa L. Thygersen, NP
• Hala A. Sheikh-Mohamed, MD
• Alberto Godinez, MD
• Anne D. Kaufhold, 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