Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Internal Medicine

Neal I. Shah, MD

Works at hospitals in Lake Forest, IL · Winfield, IL · Chicago, IL · Illinois

Summary

Dr. Neal I. Shah, MD is an internal medicine doctor at 870 N Milwaukee Ave, Fl 2, Vernon Hills, IL 60061. Phone: (847) 535-7647. Accepts Medicare assignment. In 2024, Neal I. Shah had 202 Original Medicare patients and 937 services. NPI 1801258561. 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 Neal I. Shah, 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 Neal I. Shah accept Medicare assignment?
Yes. Medicare's clinician data says Neal I. Shah 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 Neal I. Shah see?
In 2024, CMS data shows 202 Original Medicare patients and 937 services for Neal I. Shah. This counts Original Medicare only and measures volume, not quality.
What is Neal I. Shah's NPI number?
1801258561. 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 Neal I. Shah, 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 patients202
Services billed to Medicare937
Different services or procedures30
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)190 services
  2. Insertion of needle into vein for collection of blood sample (36415)162 services
  3. 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)159 services
  4. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)123 services
  5. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)73 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 pressure67%
  • Arthritis45%
  • Ischemic heart disease27%
  • Diabetes25%
  • Anxiety23%

Hospitals where Neal I. Shah works

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

Group practices

Medicare enrollment lists Neal I. Shah as a member of this group (CMS data updated October 2, 2026).

  • Northwestern Medical Faculty Foundation4,503 clinicians in the group

Specialties

Find other Internal Medicine doctors in Illinois →

Other internal medicine doctors in Vernon Hills

Clinicians with the same Medicare primary specialty in Vernon Hills, IL — not a recommendation.

All internal medicine doctors in Vernon Hills →

Other clinicians in Northwestern Medical Faculty Foundation

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

Clinician information

CredentialMD
Medical schoolIndiana University School Of Medicine
Graduation year2016 (10 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1801258561
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