Marianna Siksay, MD

Medicare activity in 2024

Official CMS public-use data for Marianna Siksay, 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)408 services
2. Administration of influenza virus vaccine (G0008)331 services
3. Influenza vaccine split virus, preservative free (90662)319 services
4. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)173 services
5. Admn sarscov2 vacc 1 dose (90480)150 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 cholesterol74%
• High blood pressure58%
• Arthritis40%
• Osteoporosis21%
• Diabetes19%
• Ischemic heart disease19%

Hospitals where Marianna Siksay works

Medicare's Facility Affiliation Data lists Marianna Siksay 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 Green HospitalLa Jolla, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: not listed by Medicare · CCN 050424
• Scripps Memorial Hospital - EncinitasEncinitas, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050503
• Scripps Memorial Hospital La JollaLa Jolla, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050324

Practice locations

Addresses where Marianna Siksay is enrolled with Medicare (CMS data updated October 2, 2026).

• 2176 Salk AveCarlsbad, CA 92008 (760) 827‑7200

Group practices

Medicare enrollment lists Marianna Siksay as a member of this group (CMS data updated October 2, 2026).

• Scripps Health1,433 clinicians in the group

Specialties

• Family Practiceprimary

Find other Family Practice doctors in California →

Other family doctors in Carlsbad

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

• Bahar Rahnamayi, MD
• Theresa A. Bartolome, MD
• Sandhya Desai, MD
• Sharon M. Slowik, MD
• Madalasa Bista, MD
• Elaheh Etedali, MD
• Zachary Sprague, DO
• Immanuel D. Hausig, DO

All family doctors in Carlsbad →

Other clinicians in Scripps Health

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

• Maysam Riadh, MD
• Deborah J. Shin, MD
• Nadia C. Nunes Cavalcante Parr, MD
• Bao Q. Luu, MD
• Aashni B. Purohit, PA
• Josefina Q. Trausch, 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