Mackenzie Scott Steiner, PH.D.
Clinical Psychologist · Santa Cruz, CA
Mackenzie Scott Steiner, PH.D. is a clinical psychologist with a practice address in Santa Cruz, California, and NPI 1003826611, issued on Aug 8, 2006. Check the license (California 35809, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Mackenzie Scott Steiner
- Credential
- PH.D.
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- 35809 CA
Self-reported in NPPES; status is on the state search - Practice location
- PO Box 2343, Santa Cruz, CA 95063
- Phone
- (512) 789-7055
- Enumerated
- Aug 8, 2006
- Record last updated
- Sep 15, 2025
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 12,647 in California → Look up another NPI →
Verify Mackenzie Scott Steiner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 35809Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Mackenzie Scott Steiner among 12,647 clinical psychologist records in California
Mackenzie Scott Steiner, PH.D. is one of 12,647 clinical psychologist records with a practice address in California. 9% 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 2006, is newer than 1% of them.
- NPI issued2006 · 1% of these records are older, 80% newer
- In a Medicare fileNo · 9% of these records are
- In the CMS Doctors and Clinicians fileNo · 19% of these records are
- Record last updated2025 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC0700X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
46 clinical psychologist records list a practice address in Santa Cruz
They are 46 of the 5,138 NPPES records with a practice address in Santa Cruz, and 12,647 clinical psychologist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 12,647 in California → Every provider in Santa Cruz → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Deahdra Bowier, PSYDSanta Cruz, CA 950641740820323
- Tara Cryderman, PSY.D.Santa Cruz, CA 950641881065993
- Elena DuongSanta Cruz, CA 950641861017097
- Jessica Magallanes-Evans, PSYDSanta Cruz, CA 950641619203205
- Jing Wen Ong, PSYDSanta Cruz, CA 950641124998893
- Helen Resneck-Sannes, PH.D.Santa Cruz, CA 950621083636146
- Nupur Sahai, PH. D.Santa Cruz, CA 950641558912717
- Gregory White, PHDSanta Cruz, CA 950621821010273
Common questions
What is Mackenzie Scott Steiner, PH.D.'s NPI number?
Mackenzie Scott Steiner, PH.D.'s National Provider Identifier (NPI) is 1003826611, issued on Aug 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mackenzie Scott Steiner, PH.D. located?
The NPPES record lists a practice address at PO Box 2343, Santa Cruz, CA, 95063. Phone: (512) 789-7055. Providers update this record themselves, so call before visiting.
How can I verify Mackenzie Scott Steiner, PH.D.'s license?
NPPES lists California license number 35809, as entered by the provider. Search the California 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.