Quick answers
- Does Margarita B. Dela Pena accept Medicare assignment?
- Yes. Medicare's clinician data says Margarita B. Dela Pena 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 Margarita B. Dela Pena see?
- In 2024, CMS data shows 246 Original Medicare patients and 254 services for Margarita B. Dela Pena. This counts Original Medicare only and measures volume, not quality.
- What is Margarita B. Dela Pena's NPI number?
- 1669647855. 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 Margarita B. Dela Pena, 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 | 246 |
|---|---|
| Services billed to Medicare | 254 |
| Different services or procedures | 16 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Anesthesia for lens surgery (00142)163 services
- Anesthesia for other procedure on eye (00140)34 services
- Anesthesia for retinal surgery (00145)22 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 pressure75%
- High cholesterol75%
- Arthritis46%
- Diabetes38%
- Ischemic heart disease30%
- Anxiety22%
Practice locations
Addresses where Margarita B. Dela Pena is enrolled with Medicare (CMS data updated October 2, 2026).
- 27005 75th AveNew Hyde Park, NY 11040 (718) 470‑7000
- 301 E Main StBay Shore, NY 11706 (914) 666‑8866
Group practices
Medicare enrollment lists Margarita B. Dela Pena as a member of this group (CMS data updated October 2, 2026).
- North Shore - Lij Anesthesiology, PC1,003 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in New Hyde Park
Clinicians with the same Medicare primary specialty in New Hyde Park, NY — not a recommendation.
Other clinicians in North Shore - Lij Anesthesiology, PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2005 (21 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1669647855 |
| 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