Quick answers
- Does Mark Christian M. Estrellado accept Medicare assignment?
- Yes. Medicare's clinician data says Mark Christian M. Estrellado 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 Mark Christian M. Estrellado see?
- In 2024, CMS data shows 63 Original Medicare patients and 140 services for Mark Christian M. Estrellado. This counts Original Medicare only and measures volume, not quality.
- What is Mark Christian M. Estrellado's NPI number?
- 1336584457. 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 Mark Christian M. Estrellado, 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 | 63 |
|---|---|
| Services billed to Medicare | 140 |
| Different services or procedures | 23 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)47 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)34 services
- Detection test by immunoassay with direct visual observation for severe acute respiratory syndrome coronavirus 2 (covid-19) (87811)16 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 cholesterol75%
- High blood pressure67%
- Arthritis56%
- Anxiety33%
- Ischemic heart disease25%
- Depression22%
Practice locations
Addresses where Mark Christian M. Estrellado is enrolled with Medicare (CMS data updated October 2, 2026).
- 2128 Rockaway PkwyBrooklyn, NY 11236 (718) 489‑8820
- 3379 Crompond RdYorktown Heights, NY 10598 (914) 930‑5550
Group practices
Medicare enrollment lists Mark Christian M. Estrellado as a member of this group (CMS data updated October 2, 2026).
- Divinity Medical Services PLLC94 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Brooklyn
Clinicians with the same Medicare primary specialty in Brooklyn, NY — not a recommendation.
Other clinicians in Divinity Medical Services PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | State University Of New York Downstate Medical Center |
| Graduation year | 2013 (13 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1336584457 |
| 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