Physician Profile
Miguel A. Castellon, MD
Unclaimed ProfileAbout Dr. Castellon
Miguel A. Castellon, MD practices internal medicine in Grand Rapids, MI. The provider's National Provider Identifier (NPI) is 1659074102.
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
- (616) 267-8338
- Email not available
Practice Locations
426 MICHIGAN ST NE
Grand Rapids, MI 49503
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 3
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 — 24 related providers in 3 groups
Other internists in Grand Rapids 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2023 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What kind of doctor is Dr. Castellon?
Dr. Castellon is an internist in Grand Rapids, MI. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
What is Dr. Castellon's address?
Dr. Castellon is listed at 426 Michigan St Ne, Grand Rapids, MI 49503. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Castellon?
The number on file is (616) 267-8338. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Castellon's NPI number?
Dr. Castellon's National Provider Identifier is 1659074102. 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. Castellon train?
Dr. Castellon attended Other, graduating in 2023. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Castellon been practicing?
Dr. Castellon has 3 years experience. Calculated from a graduation year of 2023, reported in the CMS National Downloadable File.
CMS public data
Has Dr. Castellon confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Castellon. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.