Summary

Dr. Mark Klaassen treats limping, chronic bronchitis, and chronic lung disease, and performs physical therapy, strength training, and occupational therapy. He practices orthopedic surgery and has 44 years of experience. He speaks English and Spanish.

Dr. Klaassen earned his medical degree from Indiana University School of Medicine and completed his residency at Ft Wayne Med Educ Prog. He is affiliated with NCH Baker Hospital Downtown, NCH North Naples Hospital, Physicians Regional Medical Center Pine Ridge, Memorial Hospital of South Bend, and Parkview Kosciusko Hospital, and sees patients in Naples, Florida, and South Bend and Fort Wayne, Indiana. Patients on Vitals rate Dr. Klaassen 4.69 out of 5.

Overview based on verified provider data

Quick Facts

  • 4.7
  • 44 years of experience
  • speaks English, Spanish
  • Ft Wayne Med Educ Prog
  • 2 written reviews
  • 1 specialty
  • 16 areas of expertise
  • 5 hospital affiliations
  • 7 office locations
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. Mark Alan Klaassen has 7 locations

Nch North Naples Hospital

11190 Health Park BlvdNaples, FL 34110

Physicians Regional Medical Center Pine Ridge

6101 Pine Ridge RdNaples, FL 34119

Dr. Mark Alan Klaassen

3530 Kraft Rd Ste 201Naples, FL 34105

Parkview Hospital Randallia

2200 Randallia DrFort Wayne, IN 46805

Memorial Hospital Of South Bend

615 N Michigan StSouth Bend, IN 46601

Elkhart General Hospital

600 East BlvdElkhart, IN 46514

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Dr. Mark Alan Klaassen, MD
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Dr. Mark Alan Klaassen, MDDr. James R. Piorkowski, MDDr. Brett R. Smith, MDDr. Christopher P. O'Grady, MD
Orthopedic SurgeryOrthopedic SurgeryOrthopedic SurgeryOrthopedic Surgery
Accepts New Patients Accepts New Patients Accepts New Patients
4.7 
4.8 
4.8 
4.7 
44 Years of Experience 23 Years of Experience 29 Years of Experience 29 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks English, Spanish Speaks English Speaks English Speaks English
Naples , FLGulf Breeze , FLGulf Breeze , FLGulf Breeze , FL
Med School: Indiana University School Of Medicine Med School: Georgetown University School Of Medicine Med School: MCP-Hahnemann School of Medicine Med School: Georgetown University School Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Mark Alan Klaassen

Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.

Medical Specialties

Dr. Mark Alan Klaassen has the following specialty

Specialty Expertise

Dr. Mark Alan Klaassen has the following 16 areas of expertise

  • Arthroscopic Surgery (Arthroscopy)
  • Arthroscopy
  • Bone Fracture
  • Carpal Tunnel Syndrome
  • Herniated Disc
  • Hip Surgery
  • Joint Pain/Swelling
  • Joint Replacement
  • Knee Osteoarthritis
  • Knee Surgery (Knee Replacement Arthroplasty)
  • Laminectomy
  • Osteoarthritis
  • Osteoarthritis (Hand and Wrist)
  • Scoliosis
  • Sports Medicine
  • Surgery

Certifications, License, & Education

44 Years Experience

Dr. Mark Alan Klaassen holds an expired medical license in the state of Florida.

Medical License

Medical Doctor with an expired medical license in the state of Florida that expired in 2026.

Education & Training

Residency

Completed their residency at Ft Wayne Med Educ Prog.

Medical School

Graduated from Indiana University School Of Medicine in 1982.

NPI Number

Dr. Klaassen's NPI number is 1053325589.

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Frequently Asked Questions

Is Dr. Mark Klaassen accepting new patients?
Dr. Mark Klaassen has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
Where is Dr. Mark Klaassen's office located?
Dr. Mark Klaassen's office is located at 11190 Health Park Blvd, Naples, FL, 34110.
Does Dr. Mark Klaassen accept my insurance?
You can see the insurance plans that Dr. Mark Klaassen accepts on their Vitals profile.
Which hospitals is Dr. Mark Klaassen affiliated with?
Dr. Mark Klaassen is affiliated with Nch Baker Hospital Downtown, Nch North Naples Hospital, PHYSICIANS REGIONAL MEDICAL CENTER PINE RIDGE, Memorial Hospital Of South Bend, and Parkview Kosciusko Hospital.
Does Dr. Mark Klaassen accept virtual/telehealth appointments?
Dr. Mark Klaassen has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.

Data Sources

This provider profile is built using data from:

  • NPPES NPI Registry
  • State medical licensing boards
  • Healthcare system and provider network data

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