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Edit this profileAt a glance
- 20130 Lake Chabot Rd, Suite 309, Castro Valley, CA 94546
About Donald Knotts
Donald R. Knotts, MEDICAL DOCTOR practices internal medicine in Castro Valley, CA. The provider's National Provider Identifier (NPI) is 1790858611.
Factual summary compiled by Guide.md from public records; not written by this provider.
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
- (510) 886-3701
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
20130 LAKE CHABOT RD SUITE 309
Castro Valley, CA 94546
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 6
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.
Common questions
What does Donald R. Knotts specialize in?
Donald R. Knotts is an internist in Castro Valley, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
Where is Donald R. Knotts located?
Donald R. Knotts is listed at 20130 Lake Chabot Rd Suite 309, Castro Valley, CA 94546. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Donald R. Knotts's phone number?
The number on file is (510) 886-3701. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Donald R. Knotts?
Donald R. Knotts's National Provider Identifier is 1790858611. 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
How much experience does Donald R. Knotts have?
Donald R. Knotts has 20+ years experience. Registered with an NPI since 2006. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Is Donald R. Knotts's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Donald R. Knotts. If this is you, claiming it is free.
Guide.md
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