Quick answers
- Does Gerardo Colon-Otero accept Medicare assignment?
- Yes. Medicare's clinician data says Gerardo Colon-Otero accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Gerardo Colon-Otero see?
- In 2024, CMS data shows 994 Original Medicare patients and 136,498 services for Gerardo Colon-Otero. This counts Original Medicare only and measures volume, not quality.
- What is Gerardo Colon-Otero's NPI number?
- 1598754228. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Gerardo Colon-Otero, 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.
| Original Medicare patients | 994 |
|---|---|
| Services billed to Medicare | 136,498 |
| Different services or procedures | 162 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Injection, pembrolizumab, 1 mg (J9271)13,400 services
- Injection, fosaprepitant, 1 mg (J1453)10,500 services
- Injection, filgrastim-aafi, biosimilar, (nivestym), 1 microgram (Q5110)9,000 services
- Injection, nivolumab, 1 mg (J9299)8,000 services
- Injection, daratumumab, 10 mg and hyaluronidase-fihj (J9144)7,200 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 cholesterol73%
- High blood pressure72%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)55%
- Arthritis41%
- Chronic kidney disease32%
- Ischemic heart disease30%
Hospitals where Gerardo Colon-Otero works
Medicare's Facility Affiliation Data lists Gerardo Colon-Otero 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.
- Mayo ClinicJacksonville, FL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 100151
Practice locations
Addresses where Gerardo Colon-Otero is enrolled with Medicare (CMS data updated October 2, 2026).
- 4500 San Pablo Rd SJacksonville, FL 32224 (904) 953‑2000
Group practices
Medicare enrollment lists Gerardo Colon-Otero as a member of this group (CMS data updated October 2, 2026).
- Mayo Clinic Jacksonville1,615 clinicians in the group
Specialties
- Hematology/Oncologyprimary
Other hematologist-oncologists in Jacksonville
Clinicians with the same Medicare primary specialty in Jacksonville, FL — not a recommendation.
Other clinicians in Mayo Clinic Jacksonville
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Puerto Rico School Of Medicine |
| Graduation year | 1979 (47 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1598754228 |
| Corrections | Report an error or suggest an update → |
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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians