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Edit this profileAt a glance
- 551 Linn St, Suite 20, Allegan, MI 49010
About Dr. Johnston
Oliver L. Johnston, MD practices urology in Allegan, MI. The provider's National Provider Identifier (NPI) is 1639320955.
Factual summary compiled by Guide.md from public records; not written by this provider.
Specialty
Credentials & Licensing
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
- (269) 686-5888
- Email not available
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Practice Locations
551 LINN ST SUITE 20
Allegan, MI 49010
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
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 does Dr. Johnston specialize in?
Dr. Johnston is an urologist in Allegan, MI. That is the designation recorded for this NPI in the federal registry, where it is listed as “Urology”.
NPI registry
Where is Dr. Johnston located?
Dr. Johnston is listed at 551 Linn St Suite 20, Allegan, MI 49010. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Johnston's phone number?
The number on file is (269) 686-5888. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Johnston?
Dr. Johnston's National Provider Identifier is 1639320955. 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 much experience does Dr. Johnston have?
Dr. Johnston has 18+ years experience. Registered with an NPI since 2008. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Is Dr. Johnston's profile verified?
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.
Guide.md
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