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Edit this profileAt a glance
- 9961 Sierra Ave, Fontana, CA 92335
About Dr. Tang
Sonja W. Tang, MD is a healthcare provider in Fontana, CA specializing in internal medicine. Sonja trained at Loma Linda University School of Medicine, graduating in 1994. This provider record is associated with NPI 1710046321.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (909) 427-3910
- Email not available
Practice Locations
9961 SIERRA AVE
Fontana, CA 92335
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 internists at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
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 — 22 related providers in 3 groups
Other internists in Fontana 6
Same specialty, same city.
Trained at Loma Linda University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1994 at Loma Linda University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Dr. Tang specialize in?
Dr. Tang is an internist in Fontana, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
Where is Dr. Tang located?
Dr. Tang is listed at 9961 Sierra Ave, Fontana, CA 92335. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Tang's phone number?
The number on file is (909) 427-3910. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Tang?
Dr. Tang's National Provider Identifier is 1710046321. 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
Where did Dr. Tang go to medical school?
Dr. Tang attended Loma Linda University School of Medicine, graduating in 1994. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Tang have?
Dr. Tang has 32 years experience. Calculated from a graduation year of 1994, reported in the CMS National Downloadable File.
CMS public data
Is Dr. Tang's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Tang. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.