Physician Profile
Unclaimed ProfileAbout CALLAHAN
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Education & Training
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (312) 372-4823
- Email not available
Practice Locations
55 E WASHINGTON ST SUITE 2801
Chicago, IL 60602
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 clinical social workers at this location 5
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 3
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 clinical social workers in Chicago 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1993 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What is Dr. Callahan's specialty?
Dr. Callahan is a clinical social worker in Chicago, IL. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “CLINICAL SOCIAL WORKER”.
NPI registry
Where can I find Dr. Callahan?
Dr. Callahan is listed at 55 E WASHINGTON ST SUITE 2801, Chicago, IL 60602. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Callahan?
The number on file is (312) 372-4823. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Callahan's NPI number?
Dr. Callahan's National Provider Identifier is 1093779498. 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
What is Dr. Callahan's medical education?
Dr. Callahan attended Other, graduating in 1993. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Callahan been practicing?
Dr. Callahan has 33 years experience. Calculated from a graduation year of 1993, reported in the CMS National Downloadable File.
CMS public data
Has Dr. Callahan confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Callahan. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.