Physician Profile
John I. Allen, MD
Unclaimed ProfileAbout Dr. Allen
John I. Allen, MD practices gastroenterology in Ann Arbor, MI. John is also listed as specializing in internal medicine.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (734) 647-5944
- Email not available
Practice Locations
1500 EAST MEDICAL CENTER DRIVE 3RD FLOOR TAUBMAN ENTER RECP D
Ann Arbor, MI 48109
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 gastroenterologists at this location 1
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. Allen's specialty?
Dr. Allen is a gastroenterologist in Ann Arbor, MI. That is the designation recorded for this NPI in the federal registry, where it is listed as “Gastroenterology”.
NPI registry
Where can I find Dr. Allen?
Dr. Allen is listed at 1500 East Medical Center Drive 3Rd Floor Taubman Enter Recp D, Ann Arbor, MI 48109. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Allen?
The number on file is (734) 647-5944. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Allen's NPI number?
Dr. Allen's National Provider Identifier is 1154393502. 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. Allen been practicing?
Dr. Allen 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. Allen confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Allen. 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.