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

Internal Medicine

Zaki Al Yafeai, MD

Works at hospitals in Herrin, IL · Danville, IL · Peru, IL … · Illinois

Summary

Dr. Zaki Al Yafeai, MD is an internal medicine doctor at 1100 E Norris Dr, Ottawa, IL 61350. Phone: (815) 431-5380. Accepts Medicare assignment. In 2024, Zaki Al Yafeai had 164 Original Medicare patients and 274 services. NPI 1780209395. 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 Zaki Al Yafeai, 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 Zaki Al Yafeai accept Medicare assignment?
Yes. Medicare's clinician data says Zaki Al Yafeai 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 Zaki Al Yafeai see?
In 2024, CMS data shows 164 Original Medicare patients and 274 services for Zaki Al Yafeai. This counts Original Medicare only and measures volume, not quality.
What is Zaki Al Yafeai's NPI number?
1780209395. 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 Zaki Al Yafeai, 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 patients164
Services billed to Medicare274
Different services or procedures9
Participating Medicare providerYes
Average age of these patients77

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)158 services
  2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)38 services
  3. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)37 services
  4. Hospital discharge day management, more than 30 minutes (99239)18 services
  5. Hospital discharge day management, 30 minutes or less (99238)12 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%
  • Arthritis66%
  • Chronic kidney disease55%
  • Heart failure55%
  • Ischemic heart disease54%

Hospitals where Zaki Al Yafeai works

Medicare's Facility Affiliation Data lists Zaki Al Yafeai 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.

  • Herrin HospitalHerrin, IL · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 140011
  • OSF Sacred Heart Medical CenterDanville, IL · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 140093
  • OSF Saint Elizabeth MDL CenterPeru, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140110
  • OSF Saint Paul Medical CenterMendota, IL · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 141310
  • St Joseph Medical CenterBloomington, IL · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 140162

Practice locations

Addresses where Zaki Al Yafeai is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Zaki Al Yafeai as a member of these groups (CMS data updated October 2, 2026).

  • 24 on Physicians PC272 clinicians in the group
  • Cep America-Illinois Hospitalists, LLP196 clinicians in the group
  • Sound Physicians of Illinois LLC193 clinicians in the group

Specialties

Find other Internal Medicine doctors in Illinois →

Other internal medicine doctors in Ottawa

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

All internal medicine doctors in Ottawa →

Other clinicians in 24 on Physicians PC

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

Clinician information

CredentialMD
Graduation year2014 (12 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1780209395
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