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Compare the published Medicare service mix of Guireida Rivera Colon, MD with clinicians in the same registry specialty: Endocrinology · Internal Medicine (CMS).

PR · Exact areaEdit location

2024 published service data · 87 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Martha Yanetty Gomez, MD

Endocrinology · Internal Medicine (CMS) · San Juan, PR

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Ultrasound scan of head and neck soft tissue (76536)
78%Service-mix similarityView profile →

Sheila Mercado, M.D.

Endocrinology · Internal Medicine (CMS) · Manati, PR

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
72%Service-mix similarityView profile →

Rafael A Gonzalez-Rosario, M.D.

Internal Medicine (CMS) · Rio Piedras, PR

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
72%Service-mix similarityView profile →

Alejandra N Santiago, MD

Endocrinology (CMS) · Ponce, PR

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
72%Service-mix similarityView profile →

Naomi Collazo Gutierrez, MD

Endocrinology · Internal Medicine (CMS) · Manati, PR

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
72%Service-mix similarityView profile →

Ivan Enrique Laboy-Ortiz, M.D.

Endocrinology · Internal Medicine (CMS) · Caguas, PR

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
72%Service-mix similarityView profile →

Obed Perez-Gonzalez, MD

Endocrinology · Internal Medicine (CMS) · San German, PR

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
72%Service-mix similarityView profile →

Suzette Toro, M.D.

Endocrinology · Internal Medicine (CMS) · San German, PR

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
72%Service-mix similarityView profile →

Marina Torres Torres

Endocrinology (CMS) · Guaynabo, PR

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
72%Service-mix similarityView profile →

Carlos Alberto Santiagoalicea, M.D.

Endocrinology (CMS) · Mayaguez, PR

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
72%Service-mix similarityView profile →

Mariela Nieves-Rodriguez, M.D.

Endocrinology · Internal Medicine (CMS) · Bayamon, PR

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
72%Service-mix similarityView profile →

Jose A Montalvo-Figueroa, MD FACE

Endocrinology · Internal Medicine (CMS) · Ponce, PR

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
72%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.