Cassandra Sieg
Psychologist · Salem, OR
Cassandra Sieg is a psychologist with a practice address in Salem, Oregon, and NPI 1528300399, issued on Mar 20, 2013. Check the license with the Oregon board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Cassandra Sieg
- Primary taxonomy
- Psychologist 103T00000X
- Practice location
- 454 17TH St NE, Salem, OR 97301
- Phone
- (503) 231-7854
- Enumerated
- Mar 20, 2013
- Record last updated
- May 12, 2020 (not updated in 6 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest psychologist records → All 742 in Oregon → Look up another NPI →
Also registered at 454 17TH St NE
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Stephenie Davis, LPCMental Health Counselor1639910516
- Molly Stehn, LPCMental Health Counselor1073826947
Verify Cassandra Sieg in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oregon board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Cassandra Sieg among 742 psychologist records in Oregon
Cassandra Sieg is one of 742 psychologist records with a practice address in Oregon. 13% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2013, is newer than 62% of them.
- NPI issued2013 · 62% of these records are older, 36% newer
- In a Medicare fileNo · 13% of these records are
- In the CMS Doctors and Clinicians fileNo · 22% of these records are
- Record last updated2020 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103T00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychologist providers in Oregon
There are 742 psychologist records in Oregon. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 742 in Oregon → Every provider in Salem → Psychologist nationwide →
The 8 psychologist records with the nearest ZIP codes
- Karan Berger, PSY. D., MSWSalem, OR 973011144405440
- James Clay, PSYD DOCTOR OF PSYCHSalem, OR 973011942398052
- Amanda Davies, PSYDSalem, OR 973011700030012
- Ronald Glaus, PHDSalem, OR 973011881798031
- Soriah Hamide, PSYDSalem, OR 973011417051665
- Elizabeth Hamilton, PHD CLINICAL PSYCHSalem, OR 973011831264217
- Wendy Harty, PHDSalem, OR 973011699879841
- Carol Hendrix, PH.D.Salem, OR 973011811057235
Common questions
What is Cassandra Sieg's NPI number?
Cassandra Sieg's National Provider Identifier (NPI) is 1528300399, issued on Mar 20, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Cassandra Sieg located?
The NPPES record lists a practice address at 454 17TH St NE, Salem, OR, 97301. Phone: (503) 231-7854. Providers update this record themselves, so call before visiting.
How can I verify Cassandra Sieg's license?
Search the Oregon board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.