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Compare the published Medicare service mix of Alfredo Alejandro Fiallo, M.D. with clinicians in the same registry specialty: Anesthesiology.

SAN DIEGO, CA · Exact areaEdit location

2024 published service data · 320 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Andrew Waters Karlin

Anesthesiology · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Injection of local anesthetic for abdominal wall pain control on both sides using imaging guidance (64488)
  • Ultrasonic guidance for needle placement (76942)
  • Anesthesia for other procedure on upper abdomen (00790)
71%Service-mix similarityView profile →

William Trevor Lennard, M.D.

Anesthesiology · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Injection of local anesthetic for abdominal wall pain control on both sides using imaging guidance (64488)
  • Ultrasonic guidance for needle placement (76942)
  • Anesthesia for other procedure on upper abdomen (00790)
68%Service-mix similarityView profile →

Krishna Bharat Merai

Anesthesiology · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Injection of local anesthetic for abdominal wall pain control on both sides using imaging guidance (64488)
  • Ultrasonic guidance for needle placement (76942)
  • Anesthesia for other procedure on upper abdomen (00790)
65%Service-mix similarityView profile →

Billy Tran, M.D.

Anesthesiology · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Injection of local anesthetic for abdominal wall pain control on both sides using imaging guidance (64488)
  • Ultrasonic guidance for needle placement (76942)
  • Anesthesia for other procedure on upper abdomen (00790)
65%Service-mix similarityView profile →

Jeffrey Chan, M.D.

Anesthesiology · San Diego, CA

Shared published services
1 shared services · view billing descriptions
  • Injection of local anesthetic for abdominal wall pain control on both sides using imaging guidance (64488)
60%Service-mix similarityView profile →

Joseph Nguyen, MD

Anesthesiology · San Diego, CA

Shared published services
2 shared services · view billing descriptions
  • Injection of local anesthetic for abdominal wall pain control on both sides using imaging guidance (64488)
  • Anesthesia for other procedure on upper abdomen (00790)
60%Service-mix similarityView profile →

Taraz Nicholas Nosrat, MD

Anesthesiology · San Diego, CA

Shared published services
2 shared services · view billing descriptions
  • Injection of local anesthetic for abdominal wall pain control on both sides using imaging guidance (64488)
  • Anesthesia for other procedure on upper abdomen (00790)
56%Service-mix similarityView profile →

Joy Yin Le, MD

Anesthesiology · San Diego, CA

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for other procedure on upper abdomen (00790)
56%Service-mix similarityView profile →

Michael Nghia Nguyen, M.D.

Anesthesiology · San Diego, CA

Shared published services
2 shared services · view billing descriptions
  • Injection of local anesthetic for abdominal wall pain control on both sides using imaging guidance (64488)
  • Anesthesia for other procedure on upper abdomen (00790)
55%Service-mix similarityView profile →

Elmar Malek, MD

Anesthesiology · San Diego, CA

Shared published services
2 shared services · view billing descriptions
  • Injection of local anesthetic for abdominal wall pain control on both sides using imaging guidance (64488)
  • Anesthesia for other procedure on upper abdomen (00790)
53%Service-mix similarityView profile →

Harrison To

Anesthesiology · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Injection of local anesthetic for abdominal wall pain control on both sides using imaging guidance (64488)
  • Ultrasonic guidance for needle placement (76942)
  • Anesthesia for other procedure on upper abdomen (00790)
51%Service-mix similarityView profile →

Caroline C. Dennis, M.D.

Anesthesiology · San Diego, CA

Shared published services
2 shared services · view billing descriptions
  • Injection of local anesthetic for abdominal wall pain control on both sides using imaging guidance (64488)
  • Ultrasonic guidance for needle placement (76942)
47%Service-mix similarityView profile →
How this comparison works

We use the same calendar year of CMS Medicare Physician & Other Practitioners data for both providers. Published non-drug service counts are combined by HCPCS code across places of service. We apply log(1 + count), normalize the vectors, and compare them using cosine similarity.

Candidates share the reference provider’s current NPPES primary taxonomy and match the location you enter. We examine up to 500 candidates in NPI order, then show up to 12 with the highest positive similarity within that set. The score is not a percentile, medical recommendation, or prediction. Suppressed services are not estimated. Medicare fee-for-service data does not describe a provider’s entire practice.

Source: CMS Medicare Physician & Other Practitioners - by Provider and Service : 2024-12-01 · Published May 21, 2026.