Based in Elgin, IL, Gregory L Ostrom, M.D., PhD is listed in the NPI registry under internal medicine. Gregory is also listed as specialising in geriatric medicine and preventive medicine.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Dr. Ostrom is an internist in Elgin, IL. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “Internal Medicine”.
NPI registry
Dr. Ostrom is listed at 370 SUMMIT ST SUITE 5, Elgin, IL 60120. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (847) 741-0372. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Ostrom's National Provider Identifier is 1376782870. 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
Dr. Ostrom has 17+ years experience. Registered with an NPI since 2009. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practised for longer than this.
NPI registry
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Ostrom. If this is you, claiming it is free.
Guide.md
Source: NPPES NPI Registry
370 SUMMIT ST SUITE 5
Elgin, IL 60120
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Claim this profileConnections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Clinically related specialties at the same address — the people this provider most likely works alongside.
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Same specialty, same city.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.