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Rheumatology

Zainab Siddiqui, MD

Works at hospitals in Hot Springs, AR · Little Rock, AR · Arkansas

Summary

Dr. Zainab Siddiqui, MD is a rheumatologist at 10001 Lile Dr, Little Rock, AR 72205. Phone: (501) 227-8000. Accepts Medicare assignment. In 2024, Zainab Siddiqui had 326 Original Medicare patients and 47,422 services. NPI 1942389440. 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 Zainab 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 Zainab Siddiqui accept Medicare assignment?
Yes. Medicare's clinician data says Zainab 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 Zainab Siddiqui see?
In 2024, CMS data shows 326 Original Medicare patients and 47,422 services for Zainab Siddiqui. This counts Original Medicare only and measures volume, not quality.
What is Zainab Siddiqui's NPI number?
1942389440. 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 Zainab 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 patients326
Services billed to Medicare47,422
Different services or procedures116
Participating Medicare providerYes
Average age of these patients72

Most frequent services

  1. Injection, denosumab, 1 mg (J0897)1,980 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)705 services
  3. Insertion of needle into vein for collection of blood sample (36415)598 services
  4. Red blood cell sedimentation rate, to detect inflammation, automated (85652)581 services
  5. Measurement c-reactive protein for detection of infection or inflammation (86140)569 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%
  • Arthritis75%
  • High cholesterol69%
  • Chronic kidney disease31%
  • Ischemic heart disease30%
  • Depression29%

Hospitals where Zainab Siddiqui works

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

Group practices

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

  • St Vincent Medical Group240 clinicians in the group

Specialties

Find other Rheumatology doctors in Arkansas →

Other rheumatologists in Little Rock

Clinicians with the same Medicare primary specialty in Little Rock, AR — not a recommendation.

All rheumatologists in Little Rock →

Other clinicians in St Vincent Medical Group

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

Clinician information

CredentialMD
Graduation year1998 (28 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1942389440
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