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Edit this profileAt a glance
- 99 Montecillo Rd, San Rafael, CA 94903
About Dr. Lum
Ryan S. Lum, MD is a healthcare provider in San Rafael, CA specializing in internal medicine. Ryan trained at Tufts University School of Medicine, graduating in 1999. This provider record is associated with NPI 1841374824.
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
- (415) 444-2000
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
99 MONTECILLO RD
San Rafael, CA 94903
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 5
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 San Rafael 6
Same specialty, same city.
Trained at Tufts University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1999 at Tufts University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Common questions
What is Dr. Lum's specialty?
Dr. Lum is an internist in San Rafael, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
Where can I find Dr. Lum?
Dr. Lum is listed at 99 Montecillo Rd, San Rafael, CA 94903. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Lum?
The number on file is (415) 444-2000. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Lum's NPI number?
Dr. Lum's National Provider Identifier is 1841374824. 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. Lum's medical education?
Dr. Lum attended Tufts University School of Medicine, graduating in 1999. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Lum been practicing?
Dr. Lum has 27 years experience. Calculated from a graduation year of 1999, reported in the CMS National Downloadable File.
CMS public data
Has Dr. Lum confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Lum. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.