0 reviews
Summary
Dr. Ahnn graduated from the Seoul National University College of Medicine in 1969. He works in San Bernardino, CA and 1 other location and specializes in Anesthesiology and Pain Medicine. Dr. Ahnn is affiliated with Saint Bernardine Medical Center.
Quick Facts
- 57 years of experience
- 44 insurance plans accepted
- speaks English
- Southside Medical Center
- 2 specialties
- 2 areas of expertise
- 1 hospital affiliation
- 2 office locations
- Male
Office Locations
Dr. William B Ahnn has 2 locationsCompare with Similar Doctors
![]() | ![]() | ![]() | ![]() |
| Dr. William B Ahnn, MD | Peter Stiffel | Fernando Gonzalez | Fu Rong Wang |
| Anesthesiology | Anesthesiology | Pain Medicine | Anesthesiology |
| 57 Years of Experience | 50 Years of Experience | 24 Years of Experience | 9 Years of Experience |
| No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option |
| Speaks English | |||
| San Bernardino , CA | SAN BERNARDINO , CA | RIVERSIDE , CA | Fontana , CA |
| Med School: Seoul National University College Of Medicine | Med School: University Of Illinois At Chicago College Of Medicine | Med School: Universidad Autonoma De Guadalajara Facultad De Medicina | Med School: Suny Downstate Medical Center College Of Medicine |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. William B Ahnn
Medical Specialties
Dr. William B Ahnn has the following 2 specialties
Specialty Expertise
Dr. William B Ahnn has the following 2 areas of expertise
Certifications, License, & Education
57 Years Experience
Education & Training
Residency
Completed their residency at Southside Medical Center.
Medical School
Graduated from Seoul National University College Of Medicine in 1969.
NPI Number
Dr. Ahnn's NPI number is 1457338683.
Similar doctors
Frequently Asked Questions
- Where is Dr. William Ahnn's office located?
- Dr. William Ahnn's office is located at 2101 N Waterman Ave, San Bernardino, CA, 92404.
- Which hospitals is Dr. William Ahnn affiliated with?
- Dr. William Ahnn is affiliated with Saint Bernardine Medical Center.
- What languages does Dr. William Ahnn speak?
- Dr. William Ahnn speaks English.
- How can I make an appointment with Dr. William Ahnn?
- You can find contact information for Dr. William Ahnn here on Vitals.
- Does Dr. William Ahnn accept virtual/telehealth appointments?
- Dr. William Ahnn 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
Ensuring Data Transparency and Trust: A Guide to Vitals Doctor Listings and Reviews
Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.
Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.
Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.


