Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Internal Medicine

Anna R. Marcelli, MD

Sees patients in New York, NY · New York

Summary

Dr. Anna R. Marcelli, MD is an internal medicine doctor at 1275 York Ave, New York, NY 10065. Phone: (212) 639-2000. Accepts Medicare assignment. In 2024, Anna R. Marcelli had 357 Original Medicare patients and 584 services. NPI 1437120482. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 1275 York Ave, New York, NY 10065 · Directions (2 more locations)
  • Phone: (212) 639‑2000
  • Medicare: Accepts Medicare assignment
  • Group practice: Memorial Hematology Lymphoma Group (+1 more)
  • Medical school: New York University School Of Medicine · graduated 1992 (34 years since medical school)
  • Gender (as listed): Female
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Anna R. Marcelli, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Anna R. Marcelli accept Medicare assignment?
Yes. Medicare's clinician data says Anna R. Marcelli 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 Anna R. Marcelli see?
In 2024, CMS data shows 357 Original Medicare patients and 584 services for Anna R. Marcelli. This counts Original Medicare only and measures volume, not quality.
What is Anna R. Marcelli's NPI number?
1437120482. 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 Anna R. Marcelli, 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 patients357
Services billed to Medicare584
Different services or procedures14
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)174 services
  2. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)124 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)114 services
  4. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)47 services
  5. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)31 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%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)67%
  • Arthritis57%
  • Anxiety39%
  • Ischemic heart disease32%

Practice locations

Addresses where Anna R. Marcelli is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Anna R. Marcelli as a member of these groups (CMS data updated October 2, 2026).

  • Memorial Hematology Lymphoma Group216 clinicians in the group
  • Memorial Medical Consultation Group76 clinicians in the group

Specialties

Find other Internal Medicine doctors in New York →

Other internal medicine doctors in New York

Clinicians with the same Medicare primary specialty in New York, NY — not a recommendation.

All internal medicine doctors in New York →

Other clinicians in Memorial Hematology Lymphoma Group

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolNew York University School Of Medicine
Graduation year1992 (34 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1437120482
CorrectionsReport 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

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians