Physician Profile
Unclaimed ProfileAbout JOHNSTON
Based in Chicago, IL, Gregory Patrick Johnston, MD is listed in the NPI registry under student in an organized health care education program. Gregory is also listed as specializing in vascular & interventional radiology.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
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 medical trainees at this location 8
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.
Other medical trainees in Chicago 8
Same specialty, same city.
Common questions
What is Dr. Johnston's specialty?
Dr. Johnston is a medical trainee in Chicago, IL. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “Student in an Organized Health Care Education Program”.
NPI registry
Where can I find Dr. Johnston?
Dr. Johnston 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. Johnston?
The number on file is (312) 926-2000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Johnston's NPI number?
Dr. Johnston's National Provider Identifier is 1154958486. 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. Johnston been practicing?
Dr. Johnston has 6+ years experience. Registered with an NPI since 2020. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Has Dr. Johnston confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Johnston. 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.