Allan T. Nassar, MD

Medicare activity in 2024

Official CMS public-use data for Allan T. Nassar, 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 low level od decision making, if using time, 20 minutes or more (99213)629 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)268 services
3. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)193 services
4. Annual depression screening, 5 to 15 minutes (G0444)187 services
5. Administration of influenza virus vaccine (G0008)74 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%
• Diabetes34%
• Arthritis33%
• Chronic kidney disease33%
• Ischemic heart disease27%

Hospitals where Allan T. Nassar works

Medicare's Facility Affiliation Data lists Allan T. Nassar 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.

• Clovis Community Medical CenterClovis, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050492
• Community Regional Medical CenterFresno, CA · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 050060
• Madera Community HospitalMadera, CA · Acute Care Hospital · Emergency services: listed by Medicare · CCN 050856
• Saint Agnes Medical CenterFresno, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050093

Practice locations

Addresses where Allan T. Nassar is enrolled with Medicare (CMS data updated October 2, 2026).

• 1111 W 4th St, Bldg BMadera, CA 93637 (559) 662‑2700
• 45 E River Park Pl W, Suite 104Fresno, CA 93720 (559) 320‑0530
• 45 E River Park Pl W, Suite 507Fresno, CA 93720

Group practices

Medicare enrollment lists Allan T. Nassar as a member of these groups (CMS data updated October 2, 2026).

• Community Health Partners504 clinicians in the group
• Advanced Internal Medicine Associates Inc2 clinicians in the group

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Madera

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

• Michael Rafati, MD
• Harsimran Singh, MD
• Samrah Zaigham, MD
• Jivitesh Gaurav, MD
• Negin Hatami, MD
• Mireya Samaniego, MD
• Simrat K. Batth, MD
• Steven J. Gustaveson, MD

All internal medicine doctors in Madera →

Other clinicians in Community Health Partners

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

• Ileana Cervantes, PA
• Kenneth V. Nguyen, CNA
• Jonathan W. Holmes, MD
• Surinder S. Sandhu, MD
• Ankur K. Das, MD
• Ramneek S. Kalsi, 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