Shanika D. Perera, MD

Medicare activity in 2024

Official CMS public-use data for Shanika D. Perera, 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. Anesthesia for other procedure on large bowel using an endoscope (00811)23 services
2. Anesthesia for lens surgery (00142)12 services
3. Anesthesia for injection, drainage or aspiration procedures on spine or spinal cord of lower back accessed through skin using imaging guidance (01938)11 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%
• Arthritis56%
• Diabetes38%
• Ischemic heart disease31%
• Osteoporosis25%

Hospitals where Shanika D. Perera works

Medicare's Facility Affiliation Data lists Shanika D. Perera 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.

• Huntington HospitalPasadena, CA · Acute Care Hospital · Emergency services: listed by Medicare · CCN 050438

Practice locations

Addresses where Shanika D. Perera is enrolled with Medicare (CMS data updated October 2, 2026).

• 100 W California BlvdPasadena, CA 91105 (626) 440‑9161
• 333 S Arroyo Pkwy, Fl 3Pasadena, CA 91105 (626) 440‑9161

Group practices

Medicare enrollment lists Shanika D. Perera as a member of this group (CMS data updated October 2, 2026).

• Pacific Valley Medical Group106 clinicians in the group

Specialties

• Anesthesiologyprimary

Find other Anesthesiology doctors in California →

Other anesthesiologists in Pasadena

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

• Matthew H. Li, DO
• Gabriel L. Gallagher, MD
• Justin T. Herling, MD
• Mario A. Hernandez, MD
• Robert Y. Yum, MD
• Elyse L. Guran, MD
• Tai K. Lee, MD
• Isaac S. Lam, MD

All anesthesiologists in Pasadena →

Other clinicians in Pacific Valley Medical Group

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

• Sassan Rafizadeh, MD
• Patrick V. Lincoln, DO
• Shane Martien, CNA
• Gabriel L. Gallagher, MD
• Mario A. Hernandez, MD
• Robert Y. Yum, 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