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

Internal Medicine

Julietta D. Rubin, MD

Sees patients in New York, NY · New York

Summary

Dr. Julietta D. Rubin, MD is an internal medicine doctor at 234 E 85th St, New York, NY 10028. Phone: (212) 241-6585. Accepts Medicare assignment. In 2024, Julietta D. Rubin had 239 Original Medicare patients and 1,113 services. NPI 1013361047. 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: 234 E 85th St, New York, NY 10028 · Directions
  • Phone: (212) 241‑6585
  • Medicare: Accepts Medicare assignment
  • Group practice: Icahn School of Medicine at Mount Sinai
  • Medical school: graduated 2016 (10 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 Julietta D. Rubin, 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 Julietta D. Rubin accept Medicare assignment?
Yes. Medicare's clinician data says Julietta D. Rubin 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 Julietta D. Rubin see?
In 2024, CMS data shows 239 Original Medicare patients and 1,113 services for Julietta D. Rubin. This counts Original Medicare only and measures volume, not quality.
What is Julietta D. Rubin's NPI number?
1013361047. 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 Julietta D. Rubin, 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 patients239
Services billed to Medicare1,113
Different services or procedures32
Participating Medicare providerYes
Average age of these patients74

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)370 services
  2. Insertion of needle into vein for collection of blood sample (36415)220 services
  3. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)109 services
  4. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)78 services
  5. Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use (90677)30 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 pressure58%
  • Arthritis53%
  • Osteoporosis36%
  • Ischemic heart disease31%
  • Depression28%

Practice locations

Addresses where Julietta D. Rubin is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Julietta D. Rubin as a member of this group (CMS data updated October 2, 2026).

  • Icahn School of Medicine at Mount Sinai2,843 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 Icahn School of Medicine at Mount Sinai

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

Clinician information

CredentialMD
Graduation year2016 (10 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1013361047
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