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Internal Medicine

Kassem Khreis, MD

Works at hospitals in Holland, MI · Michigan

Summary

Dr. Kassem Khreis, MD is an internal medicine doctor at 3235 N Wellness Dr, 120b Internal Medicine North, Holland, MI 49424. Phone: (616) 399-9522. Accepts Medicare assignment. In 2024, Kassem Khreis had 58 Original Medicare patients and 130 services. NPI 1306236633. 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.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 3235 N Wellness Dr, 120b Internal Medicine North, Holland, MI 49424 · Directions (4 more locations)
  • Phone: (616) 399‑9522
  • Medicare: Accepts Medicare assignment
  • Hospital: Holland Hospital
  • Group practice: Center for Physical Rehabilitation and Therapy LP (+2 more)
  • Medical school: graduated 2001 (25 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Kassem Khreis, 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 Kassem Khreis accept Medicare assignment?
Yes. Medicare's clinician data says Kassem Khreis 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 Kassem Khreis see?
In 2024, CMS data shows 58 Original Medicare patients and 130 services for Kassem Khreis. This counts Original Medicare only and measures volume, not quality.
What is Kassem Khreis's NPI number?
1306236633. 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 Kassem Khreis, 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 patients58
Services billed to Medicare130
Different services or procedures6
Participating Medicare providerYes
Average age of these patients82

Most frequent services

  1. 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)34 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)28 services
  3. Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or (G2212)26 services
  4. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)19 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%
  • Alzheimer's disease or dementia67%
  • Arthritis45%
  • Depression40%
  • Anxiety36%

Hospitals where Kassem Khreis works

Medicare's Facility Affiliation Data lists Kassem Khreis 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.

  • Holland HospitalHolland, MI · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 230072

Practice locations

Addresses where Kassem Khreis is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Kassem Khreis as a member of these groups (CMS data updated October 2, 2026).

  • Center for Physical Rehabilitation and Therapy LP369 clinicians in the group
  • Center for Physical Rehabilitation Inc357 clinicians in the group
  • Holland Community Hospital178 clinicians in the group

Specialties

Find other Internal Medicine doctors in Michigan →

Other internal medicine doctors in Holland

Clinicians with the same Medicare primary specialty in Holland, MI — not a recommendation.

All internal medicine doctors in Holland →

Other clinicians in Center for Physical Rehabilitation and Therapy LP

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

Clinician information

CredentialMD
Graduation year2001 (25 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1306236633
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