Physician Profile
Unclaimed ProfileAbout Dr. Olwan
Dena Z Olwan, PhD is a clinical psychologist based in Sioux City, IA. Dena is also listed as specializing in psychologist — clinical and psychologist.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (712) 258-1000
- Email not available
Practice Locations
401 DOUGLAS STREET SUITE 504
Sioux City, IA 51104
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 clinical psychologists at this location 1
Same specialty, same street address — most likely the same department or group.
Also at this address 2
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other clinical psychologists in Sioux City 3
Same specialty, same city.
More connections — 16 related providers in 2 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1992 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What is Dr. Olwan's specialty?
Dr. Olwan is a clinical psychologist in Sioux City, IA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “CLINICAL PSYCHOLOGIST”.
NPI registry
Where can I find Dr. Olwan?
Dr. Olwan is listed at 401 DOUGLAS STREET SUITE 504, Sioux City, IA 51104. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Olwan?
The number on file is (712) 258-1000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Olwan's NPI number?
Dr. Olwan's National Provider Identifier is 1588648596. 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
What is Dr. Olwan's medical education?
Dr. Olwan attended Other, graduating in 1992. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Olwan been practicing?
Dr. Olwan has 34 years experience. Calculated from a graduation year of 1992, reported in the CMS National Downloadable File.
CMS public data
Has Dr. Olwan confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Olwan. 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.