Dr. Phuong Duong Thoai Nguyen , DO
Surgery โข Olympia, WA
3525 Ensign Rd Ne Ste J
Olympia, WA 985065065
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 June 18, 2014; this date does not establish years in practice.
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Published CMS data list 318 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 99215 โ Established patient outpatient office visit: 32 service units.
- 99203 โ New patient outpatient office visit: 30 service units.
- 99214 โ Established patient outpatient office visit: 30 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 15 records in the table ยท Guide: How to read Medicare Part B data
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Published CMS data list 176 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:
- Gabapentin โ 57 prescription fills, including refills.
- Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) โ 40 prescription fills, including refills.
- Pantoprazole Sodium โ 27 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 7 records in the table ยท Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 85% of clinicians listed under Surgery in Washington (2024, 325 clinicians with data). Median for this group: 116. Middle half: 63 to 221.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 708 in 2020 to 318 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020โ2024.
Practice Location & Contact Primary Location
3525 Ensign Rd Ne Ste J
Olympia, WA 985065065
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: Providence Health And Services - Washington. 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
Touro Un Col Of Osteopathic Medicine, New York
2014
What Public CMS Data Show
Surgery: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
202 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 โ by Provider, 2024.
Medicare-allowed amount
About $67,690 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 โ by Provider and Service, 2024.
Paid by Medicare
About $53,960 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 โ by Provider and Service, 2024.
30-day fills
180 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
$591 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.
Industry payments (Open Payments)
Fewer than 11 payment records totaling $121.64 in 2024
Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.
It shows reported financial ties between this clinician and companies. You can ask your clinician about them.
These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.
General: payments not tied to research, such as meals, travel, consulting or speaking fees.
A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.
Source: CMS Open Payments, program year 2024.
Years since graduation
12 years (graduated 2014)
CMS Doctors and Clinicians data list 2014 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
2014
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)
Dr. 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 Dr. 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 Olympia and Washington
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 85% of clinicians listed under Surgery in Washington (2024, 325 clinicians with data). Median for this group: 116. Middle half: 63 to 221.
Too few clinicians listed under Surgery in Olympia have Medicare Part B data for 2024 to compare.
Medicare-allowed amount
A higher Medicare-allowed amount than 90% of clinicians listed under Surgery in Washington (2024, 325 clinicians with data). Median for this group: $17,811. Middle half: $7,693 to $32,723.
Too few clinicians listed under Surgery in Olympia have Medicare Part B data for 2024 to compare.
Paid by Medicare
A higher Medicare payment amount than 95% of clinicians listed under Surgery in Washington (2024, 325 clinicians with data). Median for this group: $13,577. Middle half: $5,745 to $25,028.
Too few clinicians listed under Surgery in Olympia have Medicare Part B data for 2024 to compare.
Medicare Part D prescriptions
More Part D prescriptions than 90% of clinicians listed under Surgery in Washington (2024, 308 clinicians with data). Median for this group: 52. Middle half: 28 to 107.
Too few clinicians listed under Surgery in Olympia have Medicare Part D data for 2024 to compare.
Part D drug cost
A higher Part D drug cost than 65% of clinicians listed under Surgery in Washington (2024, 308 clinicians with data). Median for this group: $263. Middle half: $101 to $827.
Too few clinicians listed under Surgery in Olympia have Medicare Part D data for 2024 to compare.
22 active clinicians are listed under Surgery with a practice address in Olympia, WA (791 in Washington).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Olympia
0% of these 22 clinicians have the CMS telehealth indicator.
45.5% of these 22 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 decreased 55% from 708 in 2020 to 318 in 2024.
- 2020: 708
- 2021: 666
- 2022: 630
- 2023: 288
- 2024: 318
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Medicare-allowed amount
Medicare-allowed amount decreased 19% from $83,376 in 2020 to $67,690 in 2024.
- 2020: $83,376
- 2021: $86,968
- 2022: $84,260
- 2023: $37,047
- 2024: $67,690
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Paid by Medicare
Paid by Medicare decreased 14% from $63,092 in 2020 to $53,960 in 2024.
- 2020: $63,092
- 2021: $65,760
- 2022: $63,235
- 2023: $27,052
- 2024: $53,960
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 33% from 263 in 2020 to 176 in 2024.
- 2020: 263
- 2021: 260
- 2022: 422
- 2023: 263
- 2024: 176
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30-day fills
30-day fills decreased 42% from 313 in 2020 to 180 in 2024.
- 2020: 313
- 2021: 324
- 2022: 537
- 2023: 312
- 2024: 180
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Part D drug cost
Part D drug cost decreased 81% from $3,067 in 2020 to $591 in 2024.
- 2020: $3,067
- 2021: $2,548
- 2022: $4,117
- 2023: $1,650
- 2024: $591
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Industry payments (Open Payments)
CMS data for industry payments (Open Payments) are available for 2024 only.
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2024), 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 2024 (payments made January 1 โ December 31, 2024): fewer than 11 records totaling $121.64.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Abbott Laboratories |
Food and Beverage
In-kind items and services
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AMPLATZER TALISMAN | General | $121.64 |
Source: CMS Open Payments, program year 2024, 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 2018โ2023 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, 2019โ2024; 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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99215
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
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32 | 30 | $546.00 | $183.53 |
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99203
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
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30 | 30 | $343.00 | $108.25 |
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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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30 | 29 | $391.00 | $127.67 |
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36561
Insertion of central venous tube with port (5 years or older)
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26 | 24 | $1010.00 | $327.34 |
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77001
Fluoroscopic guidance for insertion or removal of central vein access device
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26 | 24 | $51.00 | $17.71 |
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G2212
Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or
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23 | 13 | $95.00 | $31.33 |
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19301
Partial removal of breast
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20 | 17 | $2085.88 | $546.82 |
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38525
Biopsy or removal of deep lymph nodes of underarm
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20 | 20 | $1460.93 | $250.23 |
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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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20 | 20 | $508.00 | $169.13 |
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49650
Repair of groin hernia using an endoscope
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19 | 19 | $1470.70 | $447.09 |
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99205
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more
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17 | 17 | $551.00 | $181.64 |
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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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16 | 15 | $276.00 | $92.59 |
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99222
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes
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14 | 14 | $391.71 | $129.17 |
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14301
Repair of wound by transferring skin, 30.1-60.0 sq cm
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13 | 13 | $2658.00 | $708.58 |
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45380
Biopsy of large bowel using a flexible endoscope
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12 | 12 | $625.50 | $136.63 |
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.
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 |
|---|---|---|---|---|---|
| Gabapentin | Gabapentin | 57 | 374 | $113.64 | 49 |
| Oxycodone-Acetaminophen | Oxycodone Hcl/Acetaminophen | 40 | 159 | $111.12 | 37 |
| Pantoprazole Sodium | Pantoprazole Sodium | 27 | 914 | $147.32 | 16 |
| Amoxicillin-Clavulanate Potass | Amoxicillin/Potassium Clav | 15 | 97 | $76.88 | 12 |
| Metronidazole | Metronidazole | 13 | 73 | $65.96 | 12 |
| Tamsulosin Hcl | Tamsulosin Hcl | 13 | 75 | $20.13 | 13 |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 11 | 46 | $55.84 | 11 |
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: 2026-07-01NUCC Taxonomy Code: 208600000X
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
NUCC Taxonomy Code: 390200000X
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
NUCC Taxonomy Code: 208600000X
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - GENERAL SURGERY
I20230823001966
WA
1153651161
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
Providence Health And Services - Washington
380 Chase Ave, Walla Walla, WA 993622924
Phone: 5098973333
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Nurse Practitioner - Family
Advanced Registered Nurse Practitioner
Nurse Practitioner - Family
Nurse Practitioner (Certified)
Surgery
Doctor of Medicine (M.D.)
Surgery - Vascular Surgery
Doctor of Medicine (M.D.)
Surgery - Vascular Surgery
Doctor of Medicine (M.D.)
Surgery - Vascular Surgery
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 3525 ENSIGN RD NE STE J, OLYMPIA, WA 985065065 (Tel: 3604935252)
Registered at 3525 ENSIGN RD NE STE J, OLYMPIA, WA 985065065 (Tel: 3604935252)
Student in an Organized Health Care Education/Training Program
Registered at 1055 W FAIRVIEW ST STE B, COLFAX, WA 991115106 (Tel: 5093972675)
Registered at 2755 SILVER CREEK RD STE 111&113, BULLHEAD CITY, AZ 864427904 (Tel: 9287047163)
Registered at 2755 SILVER CREEK RD STE 111&113, BULLHEAD CITY, AZ 864427904 (Tel: 9287047163)
Surgery (license number reported to NPPES: AZ 007988)
NPI status registered as active in NPPES database
Registered at 42 E LAUREL RD STE 2600, STRATFORD, NJ 080841354 (Tel: 8565666875)
Registered at 42 E LAUREL RD STE 2600, STRATFORD, NJ 080841354
Recorded as PHUONG NGUYEN, D.O.
Student in an Organized Health Care Education/Training Program
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Surgery Specialists in Olympia
- Dr. Holmes Troutman, MD
- Dr. David Deitz, MD
- Dr. Rebecca Freeman, MD
- Dr. Frank Buchanan, MD
- Dr. George Brennan, MD
- Dr. Kathleen Turner, MD
Mailing Address
3525 Ensign Rd Ne Ste J
Olympia, WA 985065065
Phone: 3604935252