Physician Profile
Harold Portnoy, M.D.
Unclaimed ProfileAbout Dr. Portnoy
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Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Contact Information
- (248) 784-3708
- Email not available
Practice Locations
29275 NORTHWESTERN HWY STE 100
Southfield, MI 48034
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 specialists at this location 1
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.
Common questions
What kind of doctor is Harold Portnoy?
Harold Portnoy is a specialist in Southfield, MI. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Harold Portnoy's address?
Harold Portnoy is listed at 29275 Northwestern Hwy Ste 100, Southfield, MI 48034. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Harold Portnoy?
The number on file is (248) 784-3708. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Harold Portnoy's NPI number?
Harold Portnoy's National Provider Identifier is 1699762310. 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 Harold Portnoy been practicing?
Harold Portnoy has 21+ years experience. Registered with an NPI since 2005. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Has Harold Portnoy confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Harold Portnoy. 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.