Dr. John N. Harker
- Gender: Male
- Experience: 32 years
- Graduation year: 1989
- Sole propriator: Yes
- NPI: 1013026269
Dr. John N. Harker DO
Orthopedic Surgeon
He is located at 12955 Seminole Boulevard in Largo, FL 33778. Can help patients with the following: Broken Bone, Elbow Pain, Hip Replacement, Rotator Cuff Tear, Tennis Elbow, Whiplash. His National Provider Identifier (NPI) number is 1013026269. Appointment can be made via the phone number (727) 586-4752. He is affiliated with 1 practices and 3 hospitals.
Conditions treated
Dr. John Nicholas Harker, being an orthopedic surgeon, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. John N. Harker.
- ACL Tear
- Achilles Tendon Rupture
- Arthritis
- Avascular Necrosis
- Back Pain
- Baker's Cyst
- Bone Spurs
- Broken Bone
- Bunions
- Bursitis
- Carpal Tunnel Syndrome
- Cauda Equina Syndrome
- Cervical Radiculopathy
- Compartment Syndrome
- Cubital Tunnel Syndrome
- Degenerative Disc Disease (DDD)
- Dislocated Ankle
- Dislocated Shoulder
- Elbow Pain
- Frostbite
- Hammer Toe
- Herniated Disc
- Hip Replacement
- Iliotibial Band Syndrome (ITBS)
- Impingement Syndrome
- Ingrown Toenail
- Joint Fluid Extraction
- Knee Pain
- Knee Replacement
- Kyphoplasty
- Kyphosis
- Low Back Pain
- Lumbar Spinal Stenosis
- Meniscus Tear
- Metatarsal Surgery
- Morton's Neuroma
- Osgood-Schlatter Disease
- Osteoarthritis (OA)
- Osteomyelitis
- Patellofemoral Pain Syndrome (PFS)
- Plantar Fasciitis
- Repetitive Motion Disorders (RMDs)
- Rheumatoid Arthritis (RA)
- Rotator Cuff Tear
- Sciatica
- Scoliosis
- Separated Shoulder
- Spinal Stenosis
- Spondylolisthesis
- Spondylolysis
- Spondylosis
- Sprained Ankle
- Sprained Wrist
- Stress Fracture
- Tennis Elbow
- Trigger Finger
- Whiplash
- Wrist Surgery
Procedures Performed by Dr. John N. Harker
Insurances Accepted by Dr. John N. Harker
- Humana
- Medicare
Medicare Enrollment
Dr. John N. Harker is enrolled to bill Medicare as a Practitioner - Orthopedic Surgery .
Bills through: Clearwater Orthopedic & Sports Medicine Inc
Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and is not a comment on insurance accepted, quality, outcomes, or board certification.
Payments received
Drug payment
| Stryker | $9202 |
| Zimmer Biomet | $1369 |
| Encore Medical | $879 |
Other
| Food and Beverage | $10366 |
| Travel and Lodging | $2665 |
| Consulting | $129 |
Studies
Graduated in 1989
Affiliated hospitals
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Questions & Answers
What conditions does Dr. John Nicholas Harker treat?
Dr. John Nicholas Harker provides treatment for Broken Bone, Elbow Pain, Hip Replacement, Rotator Cuff Tear, Tennis Elbow, Whiplash. For the full list see this list.
Where can you meet with Dr. John Nicholas Harker?
Dr. John Nicholas Harker's office is located at 12955 Seminole Boulevard in Largo, FL 33778.
Does Dr. John Nicholas Harker have affiliation with practices?
Dr. John Nicholas Harker is affiliated with Clearwater Orthopedic & Sports Medicine.
Has Dr. John Nicholas Harker affiliation with hospitals?
Dr. John Nicholas Harker is affiliated with LARGO MEDICAL CENTER. For the full list of hospitals see this list.
Does Dr. John Nicholas Harker accept patients with Medicare?
Yes, Dr. John Nicholas Harker accepts patients with Medicare.