Physician Profile
Herbert Sier, MD
Unclaimed ProfileAbout Dr. Sier
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Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (312) 695-9797
- Email not available
Practice Locations
680 N LAKE SHORE DR SUITE 1000
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.
Related specialists at this location 6
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.
Common questions
What kind of doctor is Dr. Sier?
Dr. Sier is a geriatrician in Chicago, IL. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “Geriatric Medicine”.
NPI registry
What is Dr. Sier's address?
Dr. Sier is listed at 680 N LAKE SHORE DR SUITE 1000, Chicago, IL 60611. 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. Sier?
The number on file is (312) 695-9797. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Sier's NPI number?
Dr. Sier's National Provider Identifier is 1881627446. 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. Sier been practicing?
Dr. Sier has 20+ years experience. Registered with an NPI since 2006. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Has Dr. Sier confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Sier. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.