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Internal Medicine

Jamal A. Siddiqui, MD

Sees patients in East Meadow, NY · Flushing, NY · New York

Summary

Dr. Jamal A. Siddiqui, MD is an internal medicine doctor at 602 Merrick Ave, East Meadow, NY 11554. Phone: (516) 481-2000. Accepts Medicare assignment. In 2024, Jamal A. Siddiqui had 369 Original Medicare patients and 26,454 services. NPI 1598795361. 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: 602 Merrick Ave, East Meadow, NY 11554 · Directions (1 more location)
  • Phone: (516) 481‑2000
  • Medicare: Accepts Medicare assignment
  • Group practice: Naushin Siddiqui Physician PC
  • Medical school: graduated 1997 (29 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Jamal A. Siddiqui, 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 Jamal A. Siddiqui accept Medicare assignment?
Yes. Medicare's clinician data says Jamal A. Siddiqui 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 Jamal A. Siddiqui see?
In 2024, CMS data shows 369 Original Medicare patients and 26,454 services for Jamal A. Siddiqui. This counts Original Medicare only and measures volume, not quality.
What is Jamal A. Siddiqui's NPI number?
1598795361. 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 Jamal A. Siddiqui, 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 patients369
Services billed to Medicare26,454
Different services or procedures90
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Detection test by nucleic acid for organism, amplified probe technique (87798)2,743 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)1,032 services
  3. Insertion of needle into vein for collection of blood sample (36415)810 services
  4. Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)784 services
  5. Phosphate level (84100)782 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 pressure73%
  • Ischemic heart disease53%
  • Arthritis42%
  • Diabetes34%
  • Anxiety22%

Practice locations

Addresses where Jamal A. Siddiqui is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Jamal A. Siddiqui as a member of this group (CMS data updated October 2, 2026).

  • Naushin Siddiqui Physician PC2 clinicians in the group

Specialties

Find other Internal Medicine doctors in New York →

Other internal medicine doctors in East Meadow

Clinicians with the same Medicare primary specialty in East Meadow, NY — not a recommendation.

All internal medicine doctors in East Meadow →

Other clinicians in Naushin Siddiqui Physician PC

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

Clinician information

CredentialMD
Graduation year1997 (29 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1598795361
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