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Internal Medicine

Benjamin L. Metzger, MD

Works at hospitals in New York, NY · Stony Brook, NY · New York

Summary

Dr. Benjamin L. Metzger, MD is an internal medicine doctor at 1317 3rd Ave, Fl 8, New York, NY 10021. Phone: (212) 434-6400. Accepts Medicare assignment. In 2024, Benjamin L. Metzger had 174 Original Medicare patients and 1,476 services. NPI 1588667133. 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.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 1317 3rd Ave, Fl 8, New York, NY 10021 · Directions (4 more locations)
  • Phone: (212) 434‑6400
  • Medicare: Accepts Medicare assignment
  • Hospitals: Lenox Hill Hospital, Suny/Stony Brook University Hospital
  • Group practice: North Shore-Lij Medical PC
  • Medical school: Jefferson Medical College Of Thomas Jefferson University · graduated 2002 (24 years since medical school)
  • Gender (as listed): Male
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Benjamin L. Metzger, 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 Benjamin L. Metzger accept Medicare assignment?
Yes. Medicare's clinician data says Benjamin L. Metzger 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 Benjamin L. Metzger see?
In 2024, CMS data shows 174 Original Medicare patients and 1,476 services for Benjamin L. Metzger. This counts Original Medicare only and measures volume, not quality.
What is Benjamin L. Metzger's NPI number?
1588667133. 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 Benjamin L. Metzger, 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 patients174
Services billed to Medicare1,476
Different services or procedures29
Participating Medicare providerYes
Average age of these patients79

Most frequent services

  1. 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)348 services
  2. Insertion of needle into vein for collection of blood sample (36415)305 services
  3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)258 services
  4. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)151 services
  5. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)67 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 pressure68%
  • Arthritis48%
  • Ischemic heart disease34%
  • Atrial fibrillation23%
  • Osteoporosis21%

Hospitals where Benjamin L. Metzger works

Medicare's Facility Affiliation Data lists Benjamin L. Metzger 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 Benjamin L. Metzger is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Benjamin L. Metzger as a member of this group (CMS data updated October 2, 2026).

  • North Shore-Lij Medical PC6,440 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 North Shore-Lij Medical PC

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

Clinician information

CredentialMD
Medical schoolJefferson Medical College Of Thomas Jefferson University
Graduation year2002 (24 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1588667133
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