Quick answers
- Does Renee Messina Santiago accept Medicare assignment?
- Yes. Medicare's clinician data says Renee Messina Santiago 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 Renee Messina Santiago see?
- In 2024, CMS data shows 217 Original Medicare patients and 1,861 services for Renee Messina Santiago. This counts Original Medicare only and measures volume, not quality.
- What is Renee Messina Santiago's NPI number?
- 1649353905. 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 Renee Messina Santiago, 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 | 217 |
|---|---|
| Services billed to Medicare | 1,861 |
| Different services or procedures | 48 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)394 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)270 services
- Insertion of needle into vein for collection of blood sample (36415)264 services
- Osteopathic manipulative treatment, 1-2 body regions (98925)247 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)92 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 pressure68%
- High cholesterol66%
- Arthritis45%
- Ischemic heart disease24%
- Anxiety20%
- Diabetes17%
Practice locations
Addresses where Renee Messina Santiago is enrolled with Medicare (CMS data updated October 2, 2026).
- 191 Herricks RdGarden City Park, NY 11040 (516) 727‑1473
- 2495 Newbridge RdBellmore, NY 11710 (516) 771‑9797
Specialties
Other family doctors in New York
Clinicians with the same Medicare primary specialty in New York — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | New York College Of Osteo Medicine Of New York Institute Of Technology |
| Graduation year | 2004 (22 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1649353905 |
| 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
- 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