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Edit this profileAt a glance
- 855 N Westhaven Dr, Oshkosh, WI 54904
About Dr. Maassen
Stephen J. Maassen, MD is a healthcare provider in Oshkosh, WI specializing in family medicine. This provider record is associated with NPI 1972610426.
Factual summary compiled by Guide.md from public records; not written by this provider.
Specialty
Credentials & Licensing
Contact Information
- (920) 303-8700
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
855 N WESTHAVEN DR
Oshkosh, WI 54904
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 family doctors at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
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 — 7 related providers in 1 group
Common questions
What kind of doctor is Dr. Maassen?
Dr. Maassen is a family doctor in Oshkosh, WI. That is the designation recorded for this NPI in the federal registry, where it is listed as “Family Medicine”.
NPI registry
What is Dr. Maassen's address?
Dr. Maassen is listed at 855 N Westhaven Dr, Oshkosh, WI 54904. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Maassen?
The number on file is (920) 303-8700. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Maassen's NPI number?
Dr. Maassen's National Provider Identifier is 1972610426. 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. Maassen been practicing?
Dr. Maassen 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. Maassen confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Maassen. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.