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Edit this profileAt a glance
- 431 Lakeview CT, Suite D, Mount Prospect, IL 60056
About Dr. Sage
Based in Mount Prospect, IL, John W. Sage, MD is listed in the NPI registry under family medicine. NPI 1972585636 identifies this record in the national registry.
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
- (847) 296-3040
- Email not available
Practice Locations
431 LAKEVIEW CT SUITE D
Mount Prospect, IL 60056
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 family doctors at this location 2
Same specialty, same street address — most likely the same department or group.
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 Dr. Sage specialize in?
Dr. Sage is a family doctor in Mount Prospect, IL. That is the designation recorded for this NPI in the federal registry, where it is listed as “Family Medicine”.
NPI registry
Where is Dr. Sage located?
Dr. Sage is listed at 431 Lakeview CT Suite D, Mount Prospect, IL 60056. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Sage's phone number?
The number on file is (847) 296-3040. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Sage's NPI number?
Dr. Sage's National Provider Identifier is 1972585636. 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. Sage been practicing?
Dr. Sage has 21+ years experience. Registered with an NPI since 2005. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Has Dr. Sage confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Sage. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.