Physician Profile
Gretchen Hoyer, MD
Unclaimed ProfileAbout Dr. Hoyer
Based in Chicago, IL, Gretchen Hoyer, MD is listed in the NPI registry under internal medicine. NPI 1104493212 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
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
- (312) 926-2000
- Email not available
Practice Locations
251 E HURON ST
Chicago, IL 60611
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 5
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 — 8 related providers in 1 group
Common questions
What is Dr. Hoyer's specialty?
Dr. Hoyer is an internist in Chicago, IL. 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. Hoyer?
Dr. Hoyer is listed at 251 E Huron St, Chicago, IL 60611. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Hoyer?
The number on file is (312) 926-2000. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Hoyer's NPI number?
Dr. Hoyer's National Provider Identifier is 1104493212. 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. Hoyer been practicing?
Dr. Hoyer has 5+ years experience. Registered with an NPI since 2021. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Has Dr. Hoyer confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Hoyer. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.