Dr. Catriona M Buist , PsyD
Psychologist - Clinical • Portland, OR
1815 Sw Marlow, Ste 110
Portland, OR 972255185
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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Dr. Catriona Buist is listed in NPPES under Psychologist - Clinical.
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NPI assigned on September 11, 2006; this date does not establish years in practice.
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Published CMS data list 145 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 90834 — Psychotherapy: 129 service units.
- 90791 — Psychiatric diagnostic evaluation: 16 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See the full table · Guide: How to read Medicare Part B data
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Close to the middle for Medicare Part B services among clinicians listed under Psychologist - Clinical in Portland, OR (2024, 31 clinicians with data). Median for this group: 122. Middle half: 55 to 247.
Close to the middle for Medicare Part B services among clinicians listed under Psychologist - Clinical in Oregon (2024, 92 clinicians with data). Median for this group: 139. Middle half: 82 to 252.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 130 in 2020 to 145 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
1815 Sw Marlow
Ste 110
Portland, OR 972255185
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 1 group name: University Professional Services. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
1995
What Public CMS Data Show
Psychologist - Clinical: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
39 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.
Medicare-allowed amount
About $15,296 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
Paid by Medicare
About $11,226 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
Years since graduation
31 years (graduated 1995)
CMS Doctors and Clinicians data list 1995 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2006
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”
Telehealth (some services)
Recent Medicare claims show this clinician provided some services by telehealth, such as a video or phone visit.
You may be able to have some visits without going to the office. Ask which visits can be done by telehealth.
What this does not show: Telehealth (some services)
It does not mean all services are offered by telehealth, or that telehealth is covered by your plan.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Buist has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Buist as eligible to order or refer Medicare Part B clinical laboratory and imaging services and durable medical equipment (DME) for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Portland and Oregon
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Close to the middle for clinicians listed under Psychologist - Clinical in Portland, OR (2024, 31 clinicians with data). Median for this group: 122. Middle half: 55 to 247.
Close to the middle for clinicians listed under Psychologist - Clinical in Oregon (2024, 92 clinicians with data). Median for this group: 139. Middle half: 82 to 252.
Medicare-allowed amount
Close to the middle for clinicians listed under Psychologist - Clinical in Portland, OR (2024, 31 clinicians with data). Median for this group: $14,930. Middle half: $6,578 to $21,634.
Close to the middle for clinicians listed under Psychologist - Clinical in Oregon (2024, 92 clinicians with data). Median for this group: $15,724. Middle half: $8,265 to $29,377.
Paid by Medicare
Close to the middle for clinicians listed under Psychologist - Clinical in Portland, OR (2024, 31 clinicians with data). Median for this group: $11,226. Middle half: $4,488 to $16,508.
Close to the middle for clinicians listed under Psychologist - Clinical in Oregon (2024, 92 clinicians with data). Median for this group: $11,688. Middle half: $6,101 to $21,267.
508 active clinicians are listed under Psychologist - Clinical with a practice address in Portland, OR (1,144 in Oregon).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Portland
12.2% of these 508 clinicians have the CMS telehealth indicator.
19.5% of these 508 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services increased 12% from 130 in 2020 to 145 in 2024.
- 2020: 130
- 2021: 136
- 2022: 174
- 2023: 130
- 2024: 145
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Medicare-allowed amount
Medicare-allowed amount varied from year to year: $15,106 in 2020 and $15,296 in 2024.
- 2020: $15,106
- 2021: $13,683
- 2022: $17,770
- 2023: $13,318
- 2024: $15,296
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Paid by Medicare
Paid by Medicare varied from year to year: $11,144 in 2020 and $11,226 in 2024.
- 2020: $11,144
- 2021: $10,614
- 2022: $13,451
- 2023: $10,459
- 2024: $11,226
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2017–2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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90834
Psychotherapy, 45 minutes
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129 | 23 | $479.19 | $98.24 |
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90791
Psychiatric diagnostic evaluation
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16 | 16 | $714.38 | $163.91 |
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 103TC0700X
A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - CLINICAL PSYCHOLOGIST
I20080602000708
OR
8527138668
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
University Professional Services
3181 Sw Sam Jackson Park Rd, Portland, OR 972393011
Phone: 5034948311
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Physical Therapist
Doctor of Physical Therapy
Clinical Neuropsychologist
Doctor of Philosophy (Ph.D.)
Occupational Therapist
Occupational Therapist
Psychologist - Clinical
Doctor of Philosophy (Ph.D.)
Career & Practice History
NPI enumerated September 11, 2006.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.
NPI Administrative Meta
Other Psychologist - Clinicals in Portland
- Dr. Jaaron Smith, PsyD
- Dr. Frances Miller, PhD
- Dr. Kalin Clark, PsyD
- Dr. Gregory Smith, PhD
- Dr. Vanessa Hara, PsyD
- Dr. Patrice Carrello, PhD
Mailing Address
1815 Sw Marlow, Ste 110
Portland, OR 972255185
Phone: 5032920765