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Internal Medicine

Louis M. Emmer, MD

Works at hospitals in New York, NY · Staten Island, NY · New York

Summary

Dr. Louis M. Emmer, MD is an internal medicine doctor at 4982 Hylan Blvd, Staten Island, NY 10312. Phone: (718) 966-9226. Accepts Medicare assignment. In 2024, Louis M. Emmer had 699 Original Medicare patients and 2,819 services. NPI 1306897327. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Louis M. Emmer, 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 Louis M. Emmer accept Medicare assignment?
Yes. Medicare's clinician data says Louis M. Emmer 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 Louis M. Emmer see?
In 2024, CMS data shows 699 Original Medicare patients and 2,819 services for Louis M. Emmer. This counts Original Medicare only and measures volume, not quality.
What is Louis M. Emmer's NPI number?
1306897327. 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 Louis M. Emmer, 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 patients699
Services billed to Medicare2,819
Different services or procedures47
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)810 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)575 services
  3. Insertion of needle into vein for collection of blood sample (36415)357 services
  4. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)291 services
  5. Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes (99307)180 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 cholesterol74%
  • Arthritis47%
  • Diabetes43%
  • Ischemic heart disease37%
  • Anxiety35%

Hospitals where Louis M. Emmer works

Medicare's Facility Affiliation Data lists Louis M. Emmer at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Louis M. Emmer is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Louis M. Emmer as a member of this group (CMS data updated October 2, 2026).

  • Icahn School of Medicine at Mount Sinai6 clinicians in the group

Specialties

Find other Internal Medicine doctors in New York →

Other internal medicine doctors in Staten Island

Clinicians with the same Medicare primary specialty in Staten Island, NY — not a recommendation.

All internal medicine doctors in Staten Island →

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 year1999 (27 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1306897327
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. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians