Thomas Nguyen
Optometrist โข Clackamas, OR
12100 Se Stevens Rd
Clackamas, OR 97086
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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NPI assigned on April 9, 2021; this date does not establish years in practice.
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Published CMS data list 142 Original Medicare Part B services in 2023.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2023. Published rows only; this is not a quality measure.
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Published Part B service records, 2023:
- 99213 โ Established patient outpatient office visit: 64 service units.
- 99204 โ New patient outpatient office visit: 34 service units.
- 99214 โ Established patient outpatient office visit: 28 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2023. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2022 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2023). CPT notice
See all 4 records in the table ยท Guide: How to read Medicare Part B data
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Published CMS data list 158 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Latanoprost โ 29 prescription fills, including refills.
- Cyclosporine โ 29 prescription fills, including refills.
- Fluorometholone โ 25 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 9 records in the table ยท Guide: How to read Medicare Part D prescriber data
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More Part D prescriptions than 60% of clinicians listed under Optometrist in Clackamas, OR (2024, 14 clinicians with data). Median for this group: 140. Middle half: 50 to 209.
More Part D prescriptions than 60% of clinicians listed under Optometrist in Oregon (2024, 420 clinicians with data). Median for this group: 111. Middle half: 42 to 231.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 15 in 2021 to 142 in 2023.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2021โ2023.
Practice Location & Contact Primary Location
12100 Se Stevens Rd
Clackamas, OR 97086
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: Kaiser Foundation Health Plan Of The Northwest. 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
Pacific University - College Of Optometry
2021
What Public CMS Data Show
Optometrist: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare-allowed amount
About $16,232 in 2023
The total amount Medicare approved for these services in 2023. 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 โ by Provider and Service, 2023.
Paid by Medicare
About $10,509 in 2023
The part of the Medicare-allowed amount that Medicare itself paid in 2023, 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 โ by Provider and Service, 2023.
30-day fills
185 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$7,482 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $343.69 across 6 records.
By nature of payment
- Food and Beverage: $193.69 across 3 records.
- Consulting Fee: $100.00 across 2 records.
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program: $50.00 across 1 record.
Reporting-company totals (3 largest of 4)
- Johnson & Johnson Vision Care, Inc.: $150.06 across 3 records.
- Tarsus Pharmaceuticals, Inc.: $93.63 across 1 record.
- Alcon Vision LLC: $50.00 across 1 record.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
Years since graduation
5 years (graduated 2021)
CMS Doctors and Clinicians data list 2021 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
2021
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, โDoes your provider accept Medicare as full payment?โ
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Thomas Nguyen 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 Thomas Nguyen as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services 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 Clackamas and Oregon
Billing and prescribing volume is not a quality rating.
Medicare Part D prescriptions
More Part D prescriptions than 60% of clinicians listed under Optometrist in Clackamas, OR (2024, 14 clinicians with data). Median for this group: 140. Middle half: 50 to 209.
More Part D prescriptions than 60% of clinicians listed under Optometrist in Oregon (2024, 420 clinicians with data). Median for this group: 111. Middle half: 42 to 231.
Part D drug cost
Close to the middle for clinicians listed under Optometrist in Clackamas, OR (2024, 14 clinicians with data). Median for this group: $6,357. Middle half: $2,253 to $9,606.
A higher Part D drug cost than 60% of clinicians listed under Optometrist in Oregon (2024, 420 clinicians with data). Median for this group: $3,489. Middle half: $726 to $12,175.
Medicare Part B
Comparisons use 2024 data. The latest CMS data for Thomas Nguyen are from 2023.
17 active clinicians are listed under Optometrist with a practice address in Clackamas, OR (946 in Oregon).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Clackamas
0% of these 17 clinicians have the CMS telehealth indicator.
82.4% of these 17 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 went from 15 in 2021 to 142 in 2023.
- 2021: 15
- 2022: 119
- 2023: 142
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Medicare-allowed amount
Medicare-allowed amount went from $793 in 2021 to $16,232 in 2023.
- 2021: $793
- 2022: $9,539
- 2023: $16,232
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Paid by Medicare
Paid by Medicare went from $592 in 2021 to $10,509 in 2023.
- 2021: $592
- 2022: $6,511
- 2023: $10,509
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 10% from 143 in 2023 to 158 in 2024.
- 2023: 143
- 2024: 158
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30-day fills
30-day fills increased 11% from 166 in 2023 to 185 in 2024.
- 2023: 166
- 2024: 185
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Part D drug cost
Part D drug cost decreased 23% from $9,736 in 2023 to $7,482 in 2024.
- 2023: $9,736
- 2024: $7,482
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $139.81 in 2022 to $343.69 in 2025.
- 2022: $139.81
- 2023: $707.10
- 2025: $343.69
Sources: CMS Medicare Physician & Other Practitioners (2023), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo ยท Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2025 (payments made January 1 โ December 31, 2025): fewer than 11 records totaling $343.69.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Johnson & Johnson Vision Care, Inc. |
Food and Beverage
In-kind items and services
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Acuvue | General | $95.00 |
| Tarsus Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
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XDEMVY | General | $93.63 |
| Johnson & Johnson Vision Care, Inc. |
Consulting Fee
Cash or cash equivalent
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Acuvue | General | $50.00 |
| Alcon Vision LLC |
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program
Cash or cash equivalent
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AIR OPTIX | General | $50.00 |
| CooperVision Inc. |
Consulting Fee
Cash or cash equivalent
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Clariti Contact Lens | General | $50.00 |
| Johnson & Johnson Vision Care, Inc. |
Food and Beverage
In-kind items and services
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Acuvue | General | $5.06 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2020โ2022 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 โ by Provider and Service data, 2021โ2023; 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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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
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64 | 50 | $182.75 | $89.30 |
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99204
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
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34 | 34 | $391.18 | $165.68 |
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
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28 | 28 | $266.25 | $122.80 |
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92012
Established patient problem focused exam of visual system
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16 | 12 | $200.00 | $90.36 |
Source: CMS Part B by Provider and Service, 2023; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Latanoprost | Latanoprost | 29 | 950 | $253.11 | โ |
| Cyclosporine | Cyclosporine | 29 | 870 | $2,653.97 | โ |
| Fluorometholone | Fluorometholone | 25 | 728 | $3,140.21 | 19 |
| Trazodone Hcl | Trazodone Hcl | 14 | 392 | $237.92 | โ |
| Dorzolamide-Timolol | Dorzolamide Hcl/Timolol Maleat | 14 | 750 | $233.13 | โ |
| Gabapentin | Gabapentin | 13 | 356 | $312.28 | โ |
| Doxazosin Mesylate | Doxazosin Mesylate | 12 | 336 | $77.48 | โ |
| Prednisolone Acetate | Prednisolone Acetate | 11 | 396 | $455.32 | โ |
| Prenatal Vitamin Plus Low Iron | Pnv,calcium 72/Iron/Folic Acid | 11 | 308 | $119.02 | โ |
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2026-04-28NUCC Taxonomy Code: 152W00000X
Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.
NUCC Taxonomy Code: 152W00000X
Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - OPTOMETRY
I20221019002753
WA
1951702992
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
Kaiser Foundation Health Plan Of The Northwest
12100 Se Stevens Ct, Portland, OR 970864707
Phone: 8008132000
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Internal Medicine
Psychiatry & Neurology - Child & Adolescent Psychiatry
Doctor of Osteopathic Medicine (D.O.)
Emergency Medicine
Nurse Anesthetist, Certified Registered
Internal Medicine
Doctor of Medicine (M.D.)
Physician Assistant - Medical
Physician Assistant
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 500 NE MULTNOMAH ST STE 100, PORTLAND, OR 972322099 (Tel: 8008132000)
Optometrist (license number reported to NPPES: OR ATI4570)
Registered at 12100 SE STEVENS RD, CLACKAMAS, OR 97086 (Tel: 5038132000)
Registered at 3200 MAIN ST, VANCOUVER, WA 986632753 (Tel: 3606964691)
Registered at 3200 MAIN ST, VANCOUVER, WA 986632753
NPI status registered as active in NPPES database
Registered at 2043 COLLEGE WAY, FOREST GROVE, OR 971161756 (Tel: 5033522020)
Registered at 2043 COLLEGE WAY, FOREST GROVE, OR 971161756
Recorded as THOMAS NGUYEN
Student in an Organized Health Care Education/Training Program
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Optometrists in Clackamas
- Dr. Julia Sirianni, OD
- Anna Xie
- Dr. Bret Provost, OD
- Dr. Alise Chin-Shreffler, OD
- Dr. Rachel Jorgensen, OD
- Dr. Bruce Wojciechowski, OD
Mailing Address
500 Ne Multnomah St Ste 100
Portland, OR 972322099
Phone: 8008132000