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Compare the published Medicare service mix of Fernando Raul Domingo De Castro, MD with clinicians in the same registry specialty: Internal Medicine.

PHOENIX, AZ · Exact areaEdit location

2024 published service data · 370 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Robert Thomas Stoffer, MD

Internal Medicine · Phoenix, AZ

Shared published services
1 shared services · view billing descriptions
  • Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)
62%Service-mix similarityView profile →

Silvia Y Sanchez Cardenas, MD

Internal Medicine · Phoenix, AZ

Shared published services
1 shared services · view billing descriptions
  • Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)
60%Service-mix similarityView profile →

Ilya Katz, D.O.

Internal Medicine · Phoenix, AZ

Shared published services
1 shared services · view billing descriptions
  • Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)
48%Service-mix similarityView profile →

Shahbaz A. Riaz, MD

Internal Medicine · Phoenix, AZ

Shared published services
1 shared services · view billing descriptions
  • Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)
37%Service-mix similarityView profile →

Ricardo G. Celaya, M.D.

Internal Medicine · Phoenix, AZ

Shared published services
1 shared services · view billing descriptions
  • Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)
37%Service-mix similarityView profile →

Punnaiah Marella, MD

Internal Medicine · Phoenix, AZ

Shared published services
1 shared services · view billing descriptions
  • Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)
36%Service-mix similarityView profile →

Simrat Kaur, M.D.

Internal Medicine · Phoenix, AZ

Shared published services
1 shared services · view billing descriptions
  • Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)
36%Service-mix similarityView profile →

Mauro Tucci, M.D.

Internal Medicine · Phoenix, AZ

Shared published services
1 shared services · view billing descriptions
  • Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)
35%Service-mix similarityView profile →

Ashwin R Patel, M.D.

Internal Medicine · Phoenix, AZ

Shared published services
1 shared services · view billing descriptions
  • Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)
34%Service-mix similarityView profile →

Randolph A Clark, M.D.

Internal Medicine · Phoenix, AZ

Shared published services
1 shared services · view billing descriptions
  • Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)
33%Service-mix similarityView profile →

Drew Anthony Durbin, D.O.

Internal Medicine · Phoenix, AZ

Shared published services
1 shared services · view billing descriptions
  • Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)
32%Service-mix similarityView profile →

Michael Scott Drury, M.D.

Internal Medicine · Phoenix, AZ

Shared published services
1 shared services · view billing descriptions
  • Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)
31%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.