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License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Patient Reviews

Patient comments (2)

The overall average patient rating of Dr. Philip Deffer is Good. Dr. Deffer has been reviewed by 4 patients who have provided 2 comments. The rating is 4 out of 5 stars.

Patient Ratings
Ease of Appointment 5.0
Promptness 5.0
Courteous Staff 5.0
Accurate Diagnosis 3.7
Bedside Manner 5.0
Spends Time with Me 5.0
Follows Up After Visit 5.0

Specialties & Research

Dr. Philip Deffer, MD is board certified in Orthopaedic Surgery and Orthopaedic Surgery of the Hand.

  • He has special expertise in 4 areas:
  • Dupuytren's Contracture
  • Hand Surgery
  • Hip Osteoarthritis
  • Knee Osteoarthritis

Education & Awards

Dr. Deffer graduated from Texas Tech University , Lubbock.


Dr. Deffer has 16 hospital affiliations:

  • Spencer Hospital 
  • Lakes Regional Healthcare 


  • Spanish
  • Russian
  • Chinese
  • Mandarin

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Additional Information
Dr. Philip A Deffer MD is a male Orthopaedic Surgeon, has 25 years of experience and practices in Orthopaedic Surgery, Orthopaedic Surgery of the Hand, and Surgery of the Hand.
Where does Dr. Philip A. Deffer practice?
Dr. Philip Deffer has 2 office locations.
Dr. Philip Deffer practices Orthopaedic Surgery, Orthopaedic Surgery of the Hand, and Surgery of the Hand near Spencer, IA.
Additional practice locations include: Storm Lake, IA.
See Spencer Orthopedic Surgeons and Spencer Surgeons.