Physician Profile
Unclaimed ProfileAbout AHNN
William B. Ahnn, M.D. practices anesthesiology in San Bernardino, CA. William is also listed as specializing in anesthesiology — pain medicine.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (909) 883-3711
- Email not available
Practice Locations
2101 N WATERMAN AVE
San Bernardino, CA 92404
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other anesthesiology specialists at this location 5
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 2
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 19 related providers in 3 groups
Other anesthesiology specialists in San Bernardino 3
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1969 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What is Dr. Ahnn's specialty?
Dr. Ahnn is an anesthesiology in San Bernardino, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “ANESTHESIOLOGY”.
NPI registry
Where can I find Dr. Ahnn?
Dr. Ahnn is listed at 2101 N WATERMAN AVE, San Bernardino, CA 92404. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Ahnn?
The number on file is (909) 883-3711. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Ahnn?
Dr. Ahnn's National Provider Identifier is 1457338683. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. Ahnn's medical education?
Dr. Ahnn attended Other, graduating in 1969. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Ahnn have?
Dr. Ahnn has 57 years experience. Calculated from a graduation year of 1969, reported in the CMS National Downloadable File.
CMS public data
Is Dr. Ahnn's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Ahnn. If this is you, claiming it is free.
Guide.md
Is this your profile?
Verify your identity to control how patients — and AI assistants — describe you.
Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.