Affiliated with a Castle Connolly Top Hospital
Who is Dr. An, Orthopedic Surgeon in Stanford, CA?
Dr. Tonya An, MD is an Orthopedic Surgeon, who primarily practices in Stanford, CA with 1 additional practice location. Dr. An is fluent in English, and is currently seeing new patients. Dr. An’s practice accepts Kaiser Permanente, Medicaid, Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. An’s office at (616) 856-0467.
What languages does Dr. An speak?
Dr. An and their clinical team can communicate with patients in the following languages:
English
What conditions does an Orthopedic Surgeon like Dr. An typically treat?
As an Orthopedic Surgeon, Dr. An diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. An. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology.
Also known as:
- Tendon and Synovial Disorder (Other Site)
- Joint Disorder
- Joint Tendon Disorder
- Synovial Inflammation
- Connective Tissue Disorder
ICD-10 Codes:
- M6788: Other specified disorders of synovium and tendon, other site
Also known as:
- Plantar Fibromatosis
- Foot Injuries and Disorder
- Heel Injuries and Disorder
- Ledderhose disease
- Plantar fasciitis nodule
- Foot fibromatosis
ICD-10 Codes:
- M722: Plantar fascial fibromatosis
Also known as:
- Stiff Big Toe
- Foot Injuries and Disorder
- Toe Injuries and Disorder
- Hallux Rigidus
- Big Toe Arthritis
- Frozen Big Toe
ICD-10 Codes:
- M2021: Hallux rigidus, right foot
Also known as:
- Osteoarthritis of the right ankle and foot
- Osteoarthritis
- Degenerative joint disease
- Wear-and-tear arthritis
- Arthrosis
- Joint degeneration
ICD-10 Codes:
- M19071: Primary osteoarthritis, right ankle and foot
Also known as:
- Bunion
- Foot Injuries and Disorder
- Toe Injuries and Disorder
- Hallux Valgus
- Big Toe Deformity
- Foot Bump
ICD-10 Codes:
- M2012: Hallux valgus (acquired), left foot
- M2011: Hallux valgus (acquired), right foot
Also known as:
- Pain in Left Ankle and Foot
- Ankle Injuries and Disorder
- Foot Injuries and Disorder
- Pain
- Left Ankle Ache
- Left Foot Discomfort
- Sore Left Ankle and Foot
ICD-10 Codes:
- M25572: Pain in left ankle and joints of left foot
What procedures does an Orthopedic Surgeon like Dr. An typically perform?
As an Orthopedic Surgeon, Dr. An performs a variety of medical procedures. This procedure information is derived from anonymized insurance claims and highlights the medical procedures most commonly performed by Dr. An. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology.
Also known as:
- Hammertoe Correction Surgery
- Bunion Correction with Double Bone Cut
- Hammertoe Repair
- Toe Straightening Surgery
- Phalangectomy for Hammertoe
- Hallux Valgus Correction
- Bunionectomy with Osteotomy
- Double Osteotomy Bunion Repair
CPT Codes:
- 28285: Correction, hammertoe (eg, interphalangeal fusion, partial or total phalangectomy)
- 28299: Correction, hallux valgus with bunionectomy, with sesamoidectomy when performed; with double osteotomy, any method
Also known as:
- Toe Joint Capsule Release
- Toe Capsulotomy
- Metatarsophalangeal Joint Release
- Toe Joint Surgery
CPT Codes:
- 28270: Capsulotomy; metatarsophalangeal joint, with or without tenorrhaphy, each joint (separate procedure)
Also known as:
- Foot Bone Fracture Treatment (No Manipulation)
- Metatarsal Fracture Care
- Non-Surgical Foot Fracture Treatment
- Closed Metatarsal Fracture Reduction
CPT Codes:
- 28470: Closed treatment of metatarsal fracture; without manipulation, each
Also known as:
- Bunion Correction with Bone Cut
- Hallux Valgus Correction
- Bunionectomy with Osteotomy
- Big Toe Bone Realignment
- Sesamoid Bone Removal
CPT Codes:
- 28298: Correction, hallux valgus with bunionectomy, with sesamoidectomy when performed; with proximal phalanx osteotomy, any method
Also known as:
- Removal of Deep Surgical Implant
- Hardware Removal Surgery
- Buried Implant Extraction
- Orthopedic Implant Removal
CPT Codes:
- 20680: Removal of implant; deep (eg, buried wire, pin, screw, metal band, nail, rod or plate)
Also known as:
- Sciatic Nerve Pain Injection
- Sciatic Nerve Block
- Sciatica Injection
- Steroid Injection for Sciatica
- Pain Relief for Sciatic Nerve
CPT Codes:
- 64445: Injection(s), anesthetic agent(s) and/or steroid; sciatic nerve, including imaging guidance, when performed
Does Dr. An accept my insurance?
Dr. An accepts most major insurance plans. Important: Please call our office at (616) 856-0467 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. An accept in Stanford, CA?
Dr. An in Stanford, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
AllCare Health
Blue Shield of California
Centene Corporation
Cigna Group
CVS Health (formerly Aetna)
Kaiser Permanente
Medicare
Other Health Care Provider
Santa Cruz County
UnitedHealth Group
View All Insurances
Where is Dr. An's office located?
What hospitals are Dr. An affiliated with?
Castle Connolly Top Hospital
This doctor is affiliated with a Castle Connolly Top Hospital.
Dr. An has admitting privileges at the following hospitals:
Stanford Health Care - Stanford Hospital,Stanford, CA
Ranked in 6 Procedures

Ranked in 6 Procedures
Stanford Health Care - Valleycare,Pleasanton, CA
Ranked in 2 Procedures

Ranked in 2 Procedures
Kaiser Permanente Orange County - Anaheim Medical Center,Anaheim, CA
Ranked ObGyn Surgery

Ranked Hysterectomy

Ranked ObGyn Surgery
Ranked Hysterectomy
John Muir Health Concord Medical Center,Concord, CA
Ranked in 2 Specialties

Ranked in 3 Procedures

Ranked in 2 Specialties
Ranked in 3 Procedures
Sutter Tracy Community Hospital,Tracy, CA
Ranked Mastectomy

Ranked Mastectomy
Alta Bates Summit Medical Center - Summit Campus,Oakland, CA
Ranked in 2 Specialties

Ranked in 4 Procedures

Ranked in 2 Specialties
Ranked in 4 Procedures