IndividualActive
Cassandra Sieg
NPI 1528300399 · Psychologist · Salem, OR
Cassandra Sieg is a Psychologist provider in Salem, OR (NPI 1528300399).
Provider details
- NPI number
- 1528300399
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(81/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
13 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
3 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
454 17th St Ne
Salem, OR 97301-4223
Phone: (503) 231-7854
Street-level locationGet directions
Mailing address
5200 Sw Macadam Ave Ste 580
Portland, OR 97239-3837
Additional practice locations (2)
- 1 Wahoo AveGroton, CT 06349-2324Phone: (860) 694-4966
- 414 N Meridian StNewberg, OR 97132-2697Phone: (503) 538-3838
Registry dates
- Enumerated
- 2013-03-20
- Last updated
- 2020-05-12
- Certified
- 2020-05-12
Frequently asked questions
- What is Cassandra Sieg's NPI number?
- Cassandra Sieg's National Provider Identifier (NPI) is 1528300399, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cassandra Sieg's specialty?
- Cassandra Sieg is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Cassandra Sieg located?
- Cassandra Sieg's practice location on file with NPPES is 454 17th St Ne, Salem, OR 97301-4223.
- What is Cassandra Sieg's phone number?
- The practice phone number listed in the NPPES registry for Cassandra Sieg is (503) 231-7854.
- Is Cassandra Sieg's NPI active?
- Yes — Cassandra Sieg's NPI (1528300399) is active in the NPPES registry as of the last update on 2020-05-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.