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Internal Medicine

Alexander R. Mazziotti, MD

Works at hospitals in Paramus, NJ · New Jersey

Summary

Dr. Alexander R. Mazziotti, MD is an internal medicine doctor at 268 Lincoln Ave, Hawthorne, NJ 07506. May accept Medicare assignment. In 2024, Alexander R. Mazziotti had 52 Original Medicare patients and 616 services. NPI 1902996283. 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: 268 Lincoln Ave, Hawthorne, NJ 07506 · Directions
  • Medicare: May accept Medicare assignment
  • Hospital: Valley Hospital
  • Medical school: Rutgers School Of Dental Medicine · graduated 1978 (48 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Alexander R. Mazziotti, 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 Alexander R. Mazziotti accept Medicare assignment?
Medicare's clinician data says Alexander R. Mazziotti may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
How many Medicare patients does Alexander R. Mazziotti see?
In 2024, CMS data shows 52 Original Medicare patients and 616 services for Alexander R. Mazziotti. This counts Original Medicare only and measures volume, not quality.
What is Alexander R. Mazziotti's NPI number?
1902996283. 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 Alexander R. Mazziotti, 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 patients52
Services billed to Medicare616
Different services or procedures19
Participating Medicare providerYes
Average age of these patients81

Most frequent services

  1. Insertion of needle into vein for collection of blood sample (36415)136 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)136 services
  3. Urinalysis, manual test (81002)120 services
  4. Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)29 services
  5. Ultrasound of both sides of head and neck blood flow (93880)28 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%
  • Diabetes75%
  • Stroke or mini-stroke54%
  • Arthritis29%
  • Ischemic heart disease29%

Hospitals where Alexander R. Mazziotti works

Medicare's Facility Affiliation Data lists Alexander R. Mazziotti 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.

  • Valley HospitalParamus, NJ · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 310012

Practice locations

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

  • 268 Lincoln AveHawthorne, NJ 07506

Specialties

Find other Internal Medicine doctors in New Jersey →

Other internal medicine doctors in New Jersey

Clinicians with the same Medicare primary specialty in New Jersey — not a recommendation.

All internal medicine doctors in New Jersey →

Clinician information

CredentialMD
Medical schoolRutgers School Of Dental Medicine
Graduation year1978 (48 years since medical school)
Gender (as listed)Male
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1902996283
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