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 patients | 326 |
|---|---|
| Services billed to Medicare | 47,422 |
| Different services or procedures | 116 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Injection, denosumab, 1 mg (J0897)1,980 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)705 services
- Insertion of needle into vein for collection of blood sample (36415)598 services
- Red blood cell sedimentation rate, to detect inflammation, automated (85652)581 services
- 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.
- CHI St. Vincent Hospital Hot SpringsHot Springs, AR · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 040026
- Chi-St Vincent InfirmaryLittle Rock, AR · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 040007
Practice locations
Addresses where Zainab Siddiqui is enrolled with Medicare (CMS data updated October 2, 2026).
- 10001 Lile DrLittle Rock, AR 72205 (501) 227‑8000
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
- Rheumatologyprimary
Other rheumatologists in Little Rock
Clinicians with the same Medicare primary specialty in Little Rock, AR — not a recommendation.
Other clinicians in St Vincent Medical Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1998 (28 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1942389440 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians