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Edit this profileAt a glance
- 1515 Holcombe Blvd, Houston, TX 77030
About Dr. Tan
Harold Nathan Tan, MD is a healthcare provider in Houston, TX specializing in medical oncology. Harold Nathan is also listed as specializing in internal medicine. This provider record is associated with NPI 1013887728.
Factual summary compiled by Guide.md from public records; not written by this provider.
Specialty
Credentials & Licensing
Contact Information
- (713) 792-6161
- Email not available
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Practice Locations
1515 HOLCOMBE BLVD
Houston, TX 77030
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 oncologists at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 1
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 — 7 related providers in 1 group
Common questions
What is Dr. Tan's specialty?
Dr. Tan is an oncologist in Houston, TX. That is the designation recorded for this NPI in the federal registry, where it is listed as “Medical Oncology”.
NPI registry
Where can I find Dr. Tan?
Dr. Tan is listed at 1515 Holcombe Blvd, Houston, TX 77030. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Tan?
The number on file is (713) 792-6161. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Tan's NPI number?
Dr. Tan's National Provider Identifier is 1013887728. 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 long has Dr. Tan been practicing?
Dr. Tan has 1+ years experience. Registered with an NPI since 2025. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Has Dr. Tan confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Tan. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.